You're storing the .Text
properties of the textboxes directly into the database, this doesn't work. The .Text
properties are String
s (i.e. simple text) and not typed as DateTime
instances. Do the conversion first, then it will work.
Do this for each date parameter:
Dim bookIssueDate As DateTime = DateTime.ParseExact( txtBookDateIssue.Text, "dd/MM/yyyy", CultureInfo.InvariantCulture ) cmd.Parameters.Add( New OleDbParameter("@Date_Issue", bookIssueDate ) )
Note that this code will crash/fail if a user enters an invalid date, e.g. "64/48/9999", I suggest using DateTime.TryParse
or DateTime.TryParseExact
, but implementing that is an exercise for the reader.
This solved my problem.
const url = 'mongodb://localhost:27017';
const client = new MongoClient(url, {useUnifiedTopology: true});
I have the same problem after upgrading to Gradle Wrapper 5.0., Now I switch back to 4.10.3 which just released 5 December 2018 based on Gradle documentation and use Android Gradle Plugin: 3.2.1 (the latest stable version).
In KOTLIN:- If you want to save Token into DB or shared preferences then override onNewToken in FirebaseMessagingService
override fun onNewToken(token: String) {
super.onNewToken(token)
}
Get token at run-time,use
FirebaseInstanceId.getInstance().instanceId
.addOnSuccessListener(this@SplashActivity) { instanceIdResult ->
val mToken = instanceIdResult.token
println("printing fcm token: $mToken")
}
Not sure if this solution works for you or not but just want to heads you up on compiler and build tools version compatibility issues.
This could be because of Java and Gradle version mismatch.
distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
Gradle 4.4 is compatible with only Java 7 and 8. So, point your global variable JAVA_HOME to Java 7 or 8.
In mac, add below line to your ~/.bash_profile
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home
You can have multiple java versions. Just change the JAVA_HOME path based on need. You can do it easily, check this
MongoClient.connect(url (err, client) => {
if(err) throw err;
let database = client.db('databaseName');
database.collection('name').find()
.toArray((err, results) => {
if(err) throw err;
results.forEach((value)=>{
console.log(value.name);
});
})
})
The only problem with your code is that you are accessing the object that's holding the database handler. You must access the database directly (see database variable above). This code will return your database in an array and then it loops through it and logs the name for everyone in the database.
Just add this line as per your compileSdkVersion
buildToolsVersion "27.0.3"
Your initial statement in the marked solution isn't entirely true. While your new solution may accomplish your original goal, it is still possible to circumvent the original error while preserving your AuthorizationHandler logic--provided you have basic authentication scheme handlers in place, even if they are functionally skeletons.
Speaking broadly, Authentication Handlers and schemes are meant to establish + validate identity, which makes them required for Authorization Handlers/policies to function--as they run on the supposition that an identity has already been established.
ASP.NET Dev Haok summarizes this best best here: "Authentication today isn't aware of authorization at all, it only cares about producing a ClaimsPrincipal per scheme. Authorization has to be aware of authentication somewhat, so AuthenticationSchemes in the policy is a mechanism for you to associate the policy with schemes used to build the effective claims principal for authorization (or it just uses the default httpContext.User for the request, which does rely on DefaultAuthenticateScheme)." https://github.com/aspnet/Security/issues/1469
In my case, the solution I'm working on provided its own implicit concept of identity, so we had no need for authentication schemes/handlers--just header tokens for authorization. So until our identity concepts changes, our header token authorization handlers that enforce the policies can be tied to 1-to-1 scheme skeletons.
Tags on endpoints:
[Authorize(AuthenticationSchemes = "AuthenticatedUserSchemeName", Policy = "AuthorizedUserPolicyName")]
Startup.cs:
services.AddAuthentication(options =>
{
options.DefaultAuthenticateScheme = "AuthenticatedUserSchemeName";
}).AddScheme<ValidTokenAuthenticationSchemeOptions, ValidTokenAuthenticationHandler>("AuthenticatedUserSchemeName", _ => { });
services.AddAuthorization(options =>
{
options.AddPolicy("AuthorizedUserPolicyName", policy =>
{
//policy.RequireClaim(ClaimTypes.Sid,"authToken");
policy.AddAuthenticationSchemes("AuthenticatedUserSchemeName");
policy.AddRequirements(new ValidTokenAuthorizationRequirement());
});
services.AddSingleton<IAuthorizationHandler, ValidTokenAuthorizationHandler>();
Both the empty authentication handler and authorization handler are called (similar in setup to OP's respective posts) but the authorization handler still enforces our authorization policies.
The error means, that Angular doesn't know what to do when you put a formControl
on a div
.
To fix this, you have two options.
formControlName
on an element, that is supported by Angular out of the box. Those are: input
, textarea
and select
.ControlValueAccessor
interface. By doing so, you're telling Angular "how to access the value of your control" (hence the name). Or in simple terms: What to do, when you put a formControlName
on an element, that doesn't naturally have a value associated with it.Now, implementing the ControlValueAccessor
interface can be a bit daunting at first. Especially because there isn't much good documentation of this out there and you need to add a lot of boilerplate to your code. So let me try to break this down in some simple-to-follow steps.
In order to implement the ControlValueAccessor
, you need to create a new component (or directive). Move the code related to your form control there. Like this it will also be easily reusable. Having a control already inside a component might be the reason in the first place, why you need to implement the ControlValueAccessor
interface, because otherwise you will not be able to use your custom component together with Angular forms.
Implementing the ControlValueAccessor
interface is quite verbose, here's the boilerplate that comes with it:
import {Component, OnInit, forwardRef} from '@angular/core';
import {ControlValueAccessor, FormControl, NG_VALUE_ACCESSOR} from '@angular/forms';
@Component({
selector: 'app-custom-input',
templateUrl: './custom-input.component.html',
styleUrls: ['./custom-input.component.scss'],
// a) copy paste this providers property (adjust the component name in the forward ref)
providers: [
{
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => CustomInputComponent),
multi: true
}
]
})
// b) Add "implements ControlValueAccessor"
export class CustomInputComponent implements ControlValueAccessor {
// c) copy paste this code
onChange: any = () => {}
onTouch: any = () => {}
registerOnChange(fn: any): void {
this.onChange = fn;
}
registerOnTouched(fn: any): void {
this.onTouch = fn;
}
// d) copy paste this code
writeValue(input: string) {
// TODO
}
So what are the individual parts doing?
ControlValueAccessor
interfaceControlValueAccessor
interfaceonChange
and onTouch
with it's own implementation during runtime, such that you can then call those functions. So this point is important to understand: You don't need to implement onChange and onTouch yourself (other than the initial empty implementation). The only thing your doing with (c) is to let Angular attach it's own functions to your class. Why? So you can then call the onChange
and onTouch
methods provided by Angular at the appropriate time. We'll see how this works down below.writeValue
method works in the next section, when we implement it. I've put it here, so all required properties on ControlValueAccessor
are implemented and your code still compiles.What writeValue
does, is to do something inside your custom component, when the form control is changed on the outside. So for example, if you have named your custom form control component app-custom-input
and you'd be using it in the parent component like this:
<form [formGroup]="form">
<app-custom-input formControlName="myFormControl"></app-custom-input>
</form>
then writeValue
gets triggered whenever the parent component somehow changes the value of myFormControl
. This could be for example during the initialization of the form (this.form = this.formBuilder.group({myFormControl: ""});
) or on a form reset this.form.reset();
.
What you'll typically want to do if the value of the form control changes on the outside, is to write it to a local variable which represents the form control value. For example, if your CustomInputComponent
revolves around a text based form control, it could look like this:
writeValue(input: string) {
this.input = input;
}
and in the html of CustomInputComponent
:
<input type="text"
[ngModel]="input">
You could also write it directly to the input element as described in the Angular docs.
Now you have handled what happens inside of your component when something changes outside. Now let's look at the other direction. How do you inform the outside world when something changes inside of your component?
The next step is to inform the parent component about changes inside of your CustomInputComponent
. This is where the onChange
and onTouch
functions from (c) from above come into play. By calling those functions you can inform the outside about changes inside your component. In order to propagate changes of the value to the outside, you need to call onChange with the new value as the argument. For example, if the user types something in the input
field in your custom component, you call onChange
with the updated value:
<input type="text"
[ngModel]="input"
(ngModelChange)="onChange($event)">
If you check the implementation (c) from above again, you'll see what's happening: Angular bound it's own implementation to the onChange
class property. That implementation expects one argument, which is the updated control value. What you're doing now is you're calling that method and thus letting Angular know about the change. Angular will now go ahead and change the form value on the outside. This is the key part in all this. You told Angular when it should update the form control and with what value by calling onChange
. You've given it the means to "access the control value".
By the way: The name onChange
is chosen by me. You could choose anything here, for example propagateChange
or similar. However you name it though, it will be the same function that takes one argument, that is provided by Angular and that is bound to your class by the registerOnChange
method during runtime.
Since form controls can be "touched", you should also give Angular the means to understand when your custom form control is touched. You can do it, you guessed it, by calling the onTouch
function. So for our example here, if you want to stay compliant with how Angular is doing it for the out-of-the-box form controls, you should call onTouch
when the input field is blurred:
<input type="text"
[(ngModel)]="input"
(ngModelChange)="onChange($event)"
(blur)="onTouch()">
Again, onTouch
is a name chosen by me, but what it's actual function is provided by Angular and it takes zero arguments. Which makes sense, since you're just letting Angular know, that the form control has been touched.
So how does that look when it comes all together? It should look like this:
// custom-input.component.ts
import {Component, OnInit, forwardRef} from '@angular/core';
import {ControlValueAccessor, FormControl, NG_VALUE_ACCESSOR} from '@angular/forms';
@Component({
selector: 'app-custom-input',
templateUrl: './custom-input.component.html',
styleUrls: ['./custom-input.component.scss'],
// Step 1: copy paste this providers property
providers: [
{
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => CustomInputComponent),
multi: true
}
]
})
// Step 2: Add "implements ControlValueAccessor"
export class CustomInputComponent implements ControlValueAccessor {
// Step 3: Copy paste this stuff here
onChange: any = () => {}
onTouch: any = () => {}
registerOnChange(fn: any): void {
this.onChange = fn;
}
registerOnTouched(fn: any): void {
this.onTouch = fn;
}
// Step 4: Define what should happen in this component, if something changes outside
input: string;
writeValue(input: string) {
this.input = input;
}
// Step 5: Handle what should happen on the outside, if something changes on the inside
// in this simple case, we've handled all of that in the .html
// a) we've bound to the local variable with ngModel
// b) we emit to the ouside by calling onChange on ngModelChange
}
// custom-input.component.html
<input type="text"
[(ngModel)]="input"
(ngModelChange)="onChange($event)"
(blur)="onTouch()">
// parent.component.html
<app-custom-input [formControl]="inputTwo"></app-custom-input>
// OR
<form [formGroup]="form" >
<app-custom-input formControlName="myFormControl"></app-custom-input>
</form>
Note that Control Value Accessors are NOT the right tool for nested form groups. For nested form groups you can simply use an @Input() subform
instead. Control Value Accessors are meant to wrap controls
, not groups
! See this example how to use an input for a nested form: https://stackblitz.com/edit/angular-nested-forms-input-2
This is Worked for me i have made the following changes in Style.xml
Change the Following Code:
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
With
<style name="AppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar">
On Mac :
go to Android Studio > Preferences > Build, Execution, Deployment > Compiler
On Windows :
go to File > Settings > > Build, Execution, Deployment > Compiler
Now, in the Command-line Options field , add following three flags :
--stacktrace --info --scan
like shown below
Now , open the Build window from the bottom of Android studio
Then, there is a button on the left side of the Build window:
press this button , you will see detailed logs with exact code that is preventing the project from compiling
Yet another reason may be that your entity class has several properties named somhow /.*id/i
- so ending with ID case insensitive AND elementary type AND there is no [Key]
attribute.
EF will namely try to figure out the PK by itself by looking for elementary typed properties ending in ID.
See my case:
public class MyTest, IMustHaveTenant
{
public long Id { get; set; }
public int TenantId { get; set; }
[MaxLength(32)]
public virtual string Signum{ get; set; }
public virtual string ID { get; set; }
public virtual string ID_Other { get; set; }
}
don't ask - lecacy code. The Id
was even inherited, so I could not use [Key]
(just simplifying the code here)
But here EF is totally confused.
What helped was using modelbuilder this in DBContext class.
modelBuilder.Entity<MyTest>(f =>
{
f.HasKey(e => e.Id);
f.HasIndex(e => new { e.TenantId });
f.HasIndex(e => new { e.TenantId, e.ID_Other });
});
the index on PK is implicit.
I followed this Qiita tutorial to solve my trouble.
Environment: Cordova 8.1.1
, Android Studio 3.2
, cordova-android 7.0.0
.profile
file.export PATH="/Applications/Android Studio.app/Contents/gradle/gradle-4.6/bin":$PATH
source ~/.profle
cordova build android
PS: If [email protected]
causes build error, downgrade your platform version to 6.3.0.
if it is cluster MongoDB then you need to add your current IP to the cluster, to add your current IP address you need to complete few steps below-
step 1- go to login page of Mongodb and login with valid credential - https://cloud.mongodb.com/user#/atlas/login
step 2- CLick Network Access from left sidebar under Security Section
Step 3 - Click Add IP Address
Step 4 - Click Add Current IP Address or Allow Connection From Any Where
now try to connect - npm start
and for Local MongoDB use mongo String like "mongodb+srv://username:pass%[email protected]/test?retryWrites=true&w=majority"
password must be encoded like example string
Recursive way to retrieve all the errors from an Angular form, after creating any kind of formulary structure there's no way to retrieve all the errors from the form. This is very useful for debugging purposes but also for plotting those errors.
Tested for Angular 9
getFormErrors(form: AbstractControl) {
if (form instanceof FormControl) {
// Return FormControl errors or null
return form.errors ?? null;
}
if (form instanceof FormGroup) {
const groupErrors = form.errors;
// Form group can contain errors itself, in that case add'em
const formErrors = groupErrors ? {groupErrors} : {};
Object.keys(form.controls).forEach(key => {
// Recursive call of the FormGroup fields
const error = this.getFormErrors(form.get(key));
if (error !== null) {
// Only add error if not null
formErrors[key] = error;
}
});
// Return FormGroup errors or null
return Object.keys(formErrors).length > 0 ? formErrors : null;
}
}
Option 1: Momentjs:
Install:
npm install moment --save
Import:
import * as moment from 'moment';
Usage:
let formattedDate = (moment(yourDate)).format('DD-MMM-YYYY HH:mm:ss')
Option 2: Use DatePipe if you are doing Angular:
Import:
import { DatePipe } from '@angular/common';
Usage:
const datepipe: DatePipe = new DatePipe('en-US')
let formattedDate = datepipe.transform(yourDate, 'DD-MMM-YYYY HH:mm:ss')
I was successful via settings > Terminal > Integrated > Shell: Linux
from there I edited the path of the shell to be /bin/zsh from the default /bin/bash
@charlieParker - here's what i'm seeing for available commands in the command pallette
ResponseEntity<String> responseEntity = new ResponseEntity<String>("sampleBodyString", HttpStatus.ACCEPTED);
when(restTemplate.exchange(
Matchers.anyString(),
Matchers.any(HttpMethod.class),
Matchers.<HttpEntity<?>> any(),
Matchers.<Class<String>> any()
)
).thenReturn(responseEntity);
You can achieve it by using following code,
@Query(value = "SELECT * FROM users u WHERE ORDER BY ?#{#pageable}", nativeQuery = true)
List<User> getUsers(String name, Pageable pageable);
Simply use ORDER BY ?#{#pageable} and pass page request to your method.
Enjoy!
If you give default values to all the fields - empty constructor is generated automatically by Kotlin.
data class User(var id: Long = -1,
var uniqueIdentifier: String? = null)
and you can simply call:
val user = User()
You can use these 2 methods to get device token with firebase but the second one method is more efficient way..
FirebaseInstallations.getInstance().getToken(false).addOnCompleteListener(new OnCompleteListener<InstallationTokenResult>() {
@Override
public void onComplete(@NonNull Task<InstallationTokenResult> task) {
if(!task.isSuccessful()){
return;
}
// Get new Instance ID token
DeviceToken = task.getResult().getToken();
}
});
Second method : you can also use this one
FirebaseMessaging.getInstance().getToken().addOnCompleteListener(new OnCompleteListener<String>() {
@Override
public void onComplete(@NonNull Task<String> task) {
DeviceToken= task.getResult();
}
});
for (let [key, value] of map) {
console.log(key, value);
}
for (let entry of Array.from(map.entries())) {
let key = entry[0];
let value = entry[1];
}
your manifest application name should contain application class name. Like
<application
android:name="your package name.MyApplication"
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:largeHeap="true"
android:theme="@style/AppTheme">
Simplest solution: You're probably running out of virtual address space (any other form of error usually means running really slowly for a long time before you finally get a MemoryError
). This is because a 32 bit application on Windows (and most OSes) is limited to 2 GB of user mode address space (Windows can be tweaked to make it 3 GB, but that's still a low cap). You've got 8 GB of RAM, but your program can't use (at least) 3/4 of it. Python has a fair amount of per-object overhead (object header, allocation alignment, etc.), odds are the strings alone are using close to a GB of RAM, and that's before you deal with the overhead of the dictionary, the rest of your program, the rest of Python, etc. If memory space fragments enough, and the dictionary needs to grow, it may not have enough contiguous space to reallocate, and you'll get a MemoryError
.
Install a 64 bit version of Python (if you can, I'd recommend upgrading to Python 3 for other reasons); it will use more memory, but then, it will have access to a lot more memory space (and more physical RAM as well).
If that's not enough, consider converting to a sqlite3
database (or some other DB), so it naturally spills to disk when the data gets too large for main memory, while still having fairly efficient lookup.
You can retrieve the value of an attribute by its name, enabling you to get the value of a custom attribute such as an attribute from a Directive:
<button (click)="toggle($event)" id="btn1" myCustomAttribute="somevalue"></button>
toggle( event: Event ) {
const eventTarget: Element = event.target as Element;
const elementId: string = eventTarget.id;
const attribVal: string = eventTarget.attributes['myCustomAttribute'].nodeValue;
}
Your Android build tools are not properly installed. Try installing some other version of build tools and give that version in the gradle file. or you can go to this directory
C:\Users\\AppData\Local\Android\sdk\build-tools
and see which build tools is installed. Try changing the build tool version in the gradle file and compile the app to see if it is working.
i had 22.0.1,23.0.02 and 24.0.0 versions of build tools and only the old 22.0.1 version worked.
source: i tried it myself and it worked for me.
None of these answers worked for me. I am using Android studio 3.4.1.
I was able to build the project but Android studio showing this error when I was going to deploy it to mobile device. It turns out it is "instant runs" fault.
Follow this answer: https://stackoverflow.com/a/42695197/3197467
I solved this problem by removing --deploy-mode cluster from spark-submit code. By default , spark submit takes client mode which has following advantage :
1. It opens up Netty HTTP server and distributes all jars to the worker nodes.
2. Driver program runs on master node , which means dedicated resources to driver process.
While in cluster mode :
1. It runs on worker node.
2. All the jars need to be placed in a common folder of the cluster so that it is accessible to all the worker nodes or in folder of each worker node.
Here it's not able to access hive metastore due to unavailability of hive jar to any of the nodes in cluster.
If the data comes from an external library you might need to run the data upate statement within zone.run(...)
. Inject zone: NgZone
for this. If you can run the instantiation of the external library within zone.run()
already, then you might not need zone.run()
later.
replace contentType : "application/x-www-form-urlencoded", by dataType : "text" as wildfly 11 doesn't support mentioned contenttype..
This code is work for me
<script src="https://www.gstatic.com/firebasejs/4.5.1/firebase.js"></script>
<script>
var config = {
apiKey: "",
authDomain: "",
databaseURL: "",
projectId: "",
storageBucket: "",
messagingSenderId: ""
};
firebase.initializeApp(config);
var reff = firebase.database().ref('message');
reff.on('value',haveData, haveerr);
function haveData(datahave){
var existval= datahave.val();
var chabi=Object.keys(existval);
for(var d2=0;d2< chabi.length;d2++){
var r=chabi[d2];
var exitval=existval[r].Message;
var exitval1=existval[r].Name;
var exit=existval[r].Email;
var exitval2=existval[r].Subject;
var timestamp=existval[r].timestamp;
var sdate=new Date(timestamp);
var Year=sdate.getFullYear();
var month=sdate.getMonth()+1;
var day=sdate.getDate();
var hh=sdate.getHours();
var mm=sdate.getMinutes();
var ss=sdate.getSeconds();
}
}
function haveerr(e){
console.log(e);
}
</script>
If in case your using Firebase any of the files within your project. Then just place that import firebase statement at the end!!
I know this sounds crazy but try it!!
In my case I had created a SB app from the SB Initializer and had included a fair number of deps in it to other things. I went in and commented out the refs to them in the build.gradle file and so was left with:
implementation 'org.springframework.boot:spring-boot-starter-hateoas'
compileOnly 'org.projectlombok:lombok'
developmentOnly 'org.springframework.boot:spring-boot-devtools'
runtimeOnly 'org.hsqldb:hsqldb'
runtimeOnly 'org.postgresql:postgresql'
annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor'
annotationProcessor 'org.projectlombok:lombok'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
testImplementation 'org.springframework.restdocs:spring-restdocs-mockmvc'
as deps. Then my bare-bones SB app was able to build and get running successfully. As I go to try to do things that may need those commented-out libs I will add them back and see what breaks.
the solution was simple -
toDoublefunc = UserDefinedFunction(lambda x: float(x),DoubleType())
changedTypedf = joindf.withColumn("label",toDoublefunc(joindf['show']))
iOS12 Swift 4 and Swift 5
If you just want to check the connection, and your lowest target is iOS12, then you can use NWPathMonitor
import Network
It needs a little setup with some properties.
let internetMonitor = NWPathMonitor()
let internetQueue = DispatchQueue(label: "InternetMonitor")
private var hasConnectionPath = false
I created a function to get it going. You can do this on view did load or anywhere else. I put a guard in so you can call it all you want to get it going.
func startInternetTracking() {
// only fires once
guard internetMonitor.pathUpdateHandler == nil else {
return
}
internetMonitor.pathUpdateHandler = { update in
if update.status == .satisfied {
print("Internet connection on.")
self.hasConnectionPath = true
} else {
print("no internet connection.")
self.hasConnectionPath = false
}
}
internetMonitor.start(queue: internetQueue)
}
/// will tell you if the device has an Internet connection
/// - Returns: true if there is some kind of connection
func hasInternet() -> Bool {
return hasConnectionPath
}
Now you can just call the helper function hasInternet()
to see if you have one. It updates in real time. See Apple documentation for NWPathMonitor
. It has lots more functionality like cancel()
if you need to stop tracking the connection, type of internet you are looking for, etc.
https://developer.apple.com/documentation/network/nwpathmonitor
It is important to note the following difference between the two techniques:
$Str="This is the<BR />source string<BR />ALL RIGHT"
$Str.Split("<BR />")
This
is
the
(multiple blank lines)
source
string
(multiple blank lines)
ALL
IGHT
$Str -Split("<BR />")
This is the
source string
ALL RIGHT
From this you can see that the string.split()
method:
While the -split
operator:
If you use setState
inside componentDidUpdate
it updates the component, resulting in a call to componentDidUpdate
which subsequently calls setState
again resulting in the infinite loop. You should conditionally call setState
and ensure that the condition violating the call occurs eventually e.g:
componentDidUpdate: function() {
if (condition) {
this.setState({..})
} else {
//do something else
}
}
In case you are only updating the component by sending props to it(it is not being updated by setState, except for the case inside componentDidUpdate), you can call setState
inside componentWillReceiveProps
instead of componentDidUpdate
.
I was also facing the same problem. In My case, I am using JUnit 5 with gradle 6.6. I am managing integration test-cases in a separate folder call integ. I have to define a new task in build.gradle file and after adding first line -> useJUnitPlatform()
, My problem got solved
With Spark 2.0, following is how you can read CSV
val conf = new SparkConf().setMaster("local[2]").setAppName("my app")
val sc = new SparkContext(conf)
val sparkSession = SparkSession.builder
.config(conf = conf)
.appName("spark session example")
.getOrCreate()
val path = "/Users/xxx/Downloads/usermsg.csv"
val base_df = sparkSession.read.option("header","true").
csv(path)
Old Question, but for angular 6
, this needs to be done when you are using HttpClient
I am exposing token data publicly here but it would be good if accessed via read-only properties.
import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { Observable, of } from 'rxjs';
import { delay, tap } from 'rxjs/operators';
import { Router } from '@angular/router';
@Injectable()
export class AuthService {
isLoggedIn: boolean = false;
url = "token";
tokenData = {};
username = "";
AccessToken = "";
constructor(private http: HttpClient, private router: Router) { }
login(username: string, password: string): Observable<object> {
let model = "username=" + username + "&password=" + password + "&grant_type=" + "password";
return this.http.post(this.url, model).pipe(
tap(
data => {
console.log('Log In succesful')
//console.log(response);
this.isLoggedIn = true;
this.tokenData = data;
this.username = data["username"];
this.AccessToken = data["access_token"];
console.log(this.tokenData);
return true;
},
error => {
console.log(error);
return false;
}
)
);
}
}
In Swift 3.0, register a class for your UITableViewCell like this :
tableView.register(UINib(nibName: "YourCellXibName", bundle: nil), forCellReuseIdentifier: "Cell")
Clean the project and build it again
I've found the same thing, but only on emulators that have the Use Host GPU setting ticked. Try turning that off, you'll no longer see those warnings (and the emulator will run horribly, horribly slowly..)
In my experience those warnings are harmless. Notice that the "error" is EGL_SUCCESS, which would seem to indicate no error at all!
Below worked for me..
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import org.apache.catalina.security.SecurityConfig;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;
import com.something.configuration.SomethingConfig;
@RunWith(SpringRunner.class)
@SpringBootTest(classes = { SomethingConfig.class, SecurityConfig.class }) //All your configuration classes
@EnableAutoConfiguration
@WebAppConfiguration // for MVC configuration
@EnableJpaRepositories("com.something.persistence.dataaccess") //JPA repositories
@EntityScan("com.something.domain.entity.*") //JPA entities
@ComponentScan("com.something.persistence.fixture") //any component classes you have
public class SomethingApplicationTest {
@Autowired
private WebApplicationContext ctx;
private MockMvc mockMvc;
@Before
public void setUp() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(ctx).build();
}
@Test
public void loginTest() throws Exception {
this.mockMvc.perform(get("/something/login"))
.andDo(print()).andExpect(status().isOk());
}
}
I faced this exception for a long time and was not able to pinpoint the problem. The exception says line 1 column 9. The mistake I did is to get the first line of the file which flume is processing.
Apache flume process the content of the file in patches. So, when flume throws this exception and says line 1, it means the first line in the current patch.
If your flume agent is configured to use batch size = 100, and (for example) the file contains 400 lines, this means the exception is thrown in one of the following lines 1, 101, 201,301.
How to discover the line which causes the problem?
You have three ways to do that.
1- pull the source code and run the agent in debug mode. If you are an average developer like me and do not know how to make this, check the other two options.
2- Try to split the file based on the batch size and run the flume agent again. If you split the file into 4 files, and the invalid json exists between lines 301 and 400, the flume agent will process the first 3 files and stop at the fourth file. Take the fourth file and again split it into more smaller files. continue the process until you reach a file with only one line and flume fails while processing it.
3- Reduce the batch size of the flume agent to only one and compare the number of processed events in the output of the sink you are using. For example, in my case I am using Solr sink. The file contains 400 lines. The flume agent is configured with batch size=100. When I run the flume agent, it fails at some point and throw that exception. At this point check how many documents are ingested in Solr. If the invalid json exists at line 346, the number of documents indexed into Solr will be 345, so the next line is the line which causes the problem.
In my case I followed the third option and fortunately I pinpoint the line which causes the problem.
This is a long answer but it actually does not solve the exception. How I overcome this exception?
I have no idea why Jackson library complain while parsing a json string contains escaped characters \n \r \t
. I think (but I am not sure) the Jackson parser is by default escaping these characters which cases the json string to be split into two lines (in case of \n
) and then it deals each line as a separate json string.
In my case we used a customized interceptor to remove these characters before being processed by the flume agent. This is the way we solved this problem.
If all above solutions is not working and In case of your project was working fine and now getting this issue, then try this,
You should initialize yours recordings. You are passing to adapter null
ArrayList<String> recordings = null; //You are passing this null
To resolve this error:
ORA-01653 unable to extend table by 1024 in tablespace your-tablespace-name
Just run this PL/SQL
command for extended tablespace size automatically on-demand:
alter database datafile '<your-tablespace-name>.dbf' autoextend on maxsize unlimited;
I get this error in import big dump file, just run this command without stopping import routine or restarting the database.
Note: each data file has a limit of 32GB of size if you need more than 32GB you should add a new data file to your existing tablespace.
More info: alter_autoextend_on
If you want to do it the way you showed in your question, this is a way to do it inline
class YourClass: UIViewController{
@IBOutlet weak var tableView: UITableView!
//other IBOutlets
//THIS is how you declare a UIImageView inline
let placeholderImage : UIImageView = {
let placeholderImage = UIImageView(image: UIImage(named: "nophoto"))
placeholderImage.contentMode = .scaleAspectFill
return placeholderImage
}()
var someVariable: String!
var someOtherVariable: Int!
func someMethod(){
//method code
}
//and so on
}
Note: not recommended solution. but quick fix in some cases.
For me, dbo._MigrationHistory
in production database missed migration records during publish process, but development database had all migration records.
If you are sure that production db has same-and-newest schema compared to dev db, copying all migration records to production db could resolve the issue.
You can do with VisualStudio solely.
dbo._MigrationHistory
table in source(in my case dev db) database > Click "Data Comparison..." menu.Note that, again, it is not recommended in complex and serious project. Use this only you have problem during ASP.Net or EntityFramework learning.
to get list of data from src/main/resources/data folder --
first of all mention your folder location in properties file as -
resourceLoader.file.location=data
inside class declare your location.
@Value("${resourceLoader.file.location}")
@Setter
private String location;
private final ResourceLoader resourceLoader;
public void readallfilesfromresources() {
Resource[] resources;
try {
resources = ResourcePatternUtils.getResourcePatternResolver(resourceLoader).getResources("classpath:" + location + "/*.json");
for (int i = 0; i < resources.length; i++) {
try {
InputStream is = resources[i].getInputStream();
byte[] encoded = IOUtils.toByteArray(is);
String content = new String(encoded, Charset.forName("UTF-8"));
}
}
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyyMMdd HH:mm:ss.SSSSSS Z"));
in your servlet
request.setAttribute("submitDone","done");
return mapping.findForward("success");
In your jsp
<c:if test="${not empty submitDone}">
<script>alert("Form submitted");
</script></c:if>
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy MM dd");
String text = date.toString(formatter);
LocalDate date = LocalDate.parse(text, formatter);
I believe this might help, you may need to use some sort of localdate variation instead of instant
swift 4.2
let textString = "Hello world"
let range = (textString as NSString).range(of: "world")
let attributedString = NSMutableAttributedString(string: textString)
attributedString.addAttribute(NSAttributedStringKey.foregroundColor, value: UIColor.red, range: range)
self.textUIlable.attributedText = attributedString
Swift 5
let attrStri = NSMutableAttributedString.init(string:"This is red")
let nsRange = NSString(string: "This is red").range(of: "red", options: String.CompareOptions.caseInsensitive)
attrStri.addAttributes([NSAttributedString.Key.foregroundColor : UIColor.red, NSAttributedString.Key.font: UIFont.init(name: "PTSans-Regular", size: 15.0) as Any], range: nsRange)
self.label.attributedText = attrStri
Hat tip to Adam Bien if you don't want to use createQuery
with a String
and want type safety:
@PersistenceContext EntityManager em; public List<ConfigurationEntry> allEntries() { CriteriaBuilder cb = em.getCriteriaBuilder(); CriteriaQuery<ConfigurationEntry> cq = cb.createQuery(ConfigurationEntry.class); Root<ConfigurationEntry> rootEntry = cq.from(ConfigurationEntry.class); CriteriaQuery<ConfigurationEntry> all = cq.select(rootEntry); TypedQuery<ConfigurationEntry> allQuery = em.createQuery(all); return allQuery.getResultList(); }
http://www.adam-bien.com/roller/abien/entry/selecting_all_jpa_entities_as
A quick workaround is using window.addEventListener
instead of document.addEventListener
.
unsafe.park is pretty much the same as thread.wait, except that it's using architecture specific code (thus the reason it's 'unsafe'). unsafe is not made available publicly, but is used within java internal libraries where architecture specific code would offer significant optimization benefits. It's used a lot for thread pooling.
So, to answer your question, all the thread is doing is waiting for something, it's not really using any CPU. Considering that your original stack trace shows that you're using a lock I would assume a deadlock is going on in your case.
Yes I know you have almost certainly already solved this issue by now. However, you're one of the top results if someone googles sun.misc.unsafe.park. I figure answering the question may help others trying to understand what this method that seems to be using all their CPU is.
Swift 4
DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {
// your function here
}
Swift 3
DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(0.1)) {
// your function here
}
Swift 2
let dispatchTime: dispatch_time_t = dispatch_time(DISPATCH_TIME_NOW, Int64(0.1 * Double(NSEC_PER_SEC)))
dispatch_after(dispatchTime, dispatch_get_main_queue(), {
// your function here
})
You can't have a variable that points to nil
in Swift — there are no pointers, and no null pointers. But in an API, you often want to be able to indicate either a specific kind of value, or a lack of value — e.g. does my window have a delegate, and if so, who is it? Optionals are Swift's type-safe, memory-safe way to do this.
It's a bit confusing - I believe you will need to grant yourself readWrite to query a database. A user with dbadmin or useradmin can admin the database (including granting yourself additional rights) but cannot perform queries or write data.
so grant yourself readWrite and you should be fine -
http://docs.mongodb.org/manual/reference/built-in-roles/#readWrite
You need to use the bracket notation because key
is a variable holding the key as a value
$.each(sjonObj, function(key,value){
// console.log(value);
if(value==""||value==null){
delete sjonObj[key];
}
});
delete sjonObj.key
deletes the property called key
from sjonObj
, instead you need to use key
as a variable holding the property name.
Note: Still it will not handle the nested objects
items[node.ind] = items[node.ind]._replace(v=node.v)
(Note: Don't be discouraged to use this solution because of the leading underscore in the function _replace. Specifically for namedtuple some functions have leading underscore which is not for indicating they are meant to be "private")
you must have gcc,json_pure
i collect some information from several post
sudo gem uninstall sass_x000D_
sudo gem uninstall compass_x000D_
sudo gem update --system_x000D_
gem install json_pure (if you have already have continued to next step)_x000D_
sudo yum install gcc gcc-c++ (if you have already have continued to next step)_x000D_
sudo gem install sass_x000D_
_x000D_
sudo gem install compass
_x000D_
Hi if ** sudo gem update --system ** not working you got an error in the update then use
sudo gem update --system 2.7.8
The location of jfxrt.jar in JDK 1.8 (Windows) is:
C:\Program Files\Java\jdk1.8.0_05\jre\lib\ext\jfxrt.jar
With gradle, I replaced this line at build.gradle.kts file inside dependencies block
providedRuntime("org.springframework.boot:spring-boot-starter-tomcat")
with this
compile("org.springframework.boot:spring-boot-starter-web")
and works fine.
I have another way to do this... suppose you swap out your message converter to String for your RestTemplate, then you can receive raw JSON. Using the raw JSON, you can then map it into your Generic Collection using a Jackson Object Mapper. Here's how:
Swap out the message converter:
List<HttpMessageConverter<?>> oldConverters = new ArrayList<HttpMessageConverter<?>>();
oldConverters.addAll(template.getMessageConverters());
List<HttpMessageConverter<?>> stringConverter = new ArrayList<HttpMessageConverter<?>>();
stringConverter.add(new StringHttpMessageConverter());
template.setMessageConverters(stringConverter);
Then get your JSON response like this:
ResponseEntity<String> response = template.exchange(uri, HttpMethod.GET, null, String.class);
Process the response like this:
String body = null;
List<T> result = new ArrayList<T>();
ObjectMapper mapper = new ObjectMapper();
if (response.hasBody()) {
body = items.getBody();
try {
result = mapper.readValue(body, mapper.getTypeFactory().constructCollectionType(List.class, clazz));
} catch (Exception e) {
e.printStackTrace();
} finally {
template.setMessageConverters(oldConverters);
}
...
You should try this one :
task getDeps(type: Copy) {
from configurations.runtime
into 'runtime/'
}
I was was looking for it some time ago when working on a project in which we had to download all dependencies into current working directory at some point in our provisioning script. I guess you're trying to achieve something similar.
I have stuck with same problem. As I didn't define Main.class and the following annotations in Spring-Boot using Maven:
@SpringBootApplication
public class Main {
public static void main(String args[]){
SpringApplication.run(Main.class, args);
}
}
I believe the easiest way is to use PyHive.
To install you'll need these libraries:
pip install sasl
pip install thrift
pip install thrift-sasl
pip install PyHive
Please note that although you install the library as PyHive
, you import the module as pyhive
, all lower-case.
If you're on Linux, you may need to install SASL separately before running the above. Install the package libsasl2-dev using apt-get or yum or whatever package manager for your distribution. For Windows there are some options on GNU.org, you can download a binary installer. On a Mac SASL should be available if you've installed xcode developer tools (xcode-select --install
in Terminal)
After installation, you can connect to Hive like this:
from pyhive import hive
conn = hive.Connection(host="YOUR_HIVE_HOST", port=PORT, username="YOU")
Now that you have the hive connection, you have options how to use it. You can just straight-up query:
cursor = conn.cursor()
cursor.execute("SELECT cool_stuff FROM hive_table")
for result in cursor.fetchall():
use_result(result)
...or to use the connection to make a Pandas dataframe:
import pandas as pd
df = pd.read_sql("SELECT cool_stuff FROM hive_table", conn)
You just need to define in your bean where you need a different scope than default singleton scope except prototype. For example:
<bean id="shoppingCart"
class="com.xxxxx.xxxx.ShoppingCartBean" scope="session">
<aop:scoped-proxy/>
</bean>
you can try implementing this ForkJoinWorkerThreadFactory and inject it to Fork-Join class.
public ForkJoinPool(int parallelism,
ForkJoinWorkerThreadFactory factory,
UncaughtExceptionHandler handler,
boolean asyncMode) {
this(checkParallelism(parallelism),
checkFactory(factory),
handler,
asyncMode ? FIFO_QUEUE : LIFO_QUEUE,
"ForkJoinPool-" + nextPoolId() + "-worker-");
checkPermission();
}
you can use this constructor of Fork-Join pool to do this.
notes:-- 1. if you use this, take into consideration that based on your implementation of new threads, scheduling from JVM will be affected, which generally schedules fork-join threads to different cores(treated as a computational thread). 2. task scheduling by fork-join to threads won't get affected. 3. Haven't really figured out how parallel stream is picking threads from fork-join(couldn't find proper documentation on it), so try using a different threadNaming factory so as to make sure, if threads in parallel stream are being picked from customThreadFactory that you provide. 4. commonThreadPool won't use this customThreadFactory.
Hi all I had the same issue that was being caused by a duplicate support version 4 file that I had included while trying to get parse integrated. Deleted the extra inclusion from the libs directory and it works fine now!
You can use Ternary operator logic Ternary operator logic is the process of using "(condition)? (true return value) : (false return value)" statements to shorten your if/else structures. i.e
/* most basic usage */
$var = 5;
$var_is_greater_than_two = ($var > 2 ? true : false); // returns true
One key thing to remember that message.max.bytes
attribute must be in sync with the consumer's fetch.message.max.bytes
property. the fetch size must be at least as large as the maximum message size otherwise there could be situation where producers can send messages larger than the consumer can consume/fetch. It might worth taking a look at it.
Which version of Kafka you are using? Also provide some more details trace that you are getting. is there some thing like ... payload size of xxxx larger
than 1000000
coming up in the log?
I removed compile 'com.android.support:support-v4:18.0.+' in dependencies, and it works
this code seems to have address the issue for me. it comes for a streaming class, ergo some of the nomenclature.
''' <summary> Reference to the awaiting task. </summary>
''' <value> The awaiting task. </value>
Protected ReadOnly Property AwaitingTask As Threading.Tasks.Task
''' <summary> Reference to the Action task; this task status undergoes changes. </summary>
Protected ReadOnly Property ActionTask As Threading.Tasks.Task
''' <summary> Reference to the cancellation source. </summary>
Protected ReadOnly Property TaskCancellationSource As Threading.CancellationTokenSource
''' <summary> Starts the action task. </summary>
''' <param name="taskAction"> The action to stream the entities, which calls
''' <see cref="StreamEvents(Of T)(IEnumerable(Of T), IEnumerable(Of Date), Integer, String)"/>. </param>
''' <returns> The awaiting task. </returns>
Private Async Function AsyncAwaitTask(ByVal taskAction As Action) As Task
Me._ActionTask = Task.Run(taskAction)
Await Me.ActionTask ' Task.Run(streamEntitiesAction)
Try
Me.ActionTask?.Wait()
Me.OnStreamTaskEnded(If(Me.ActionTask Is Nothing, TaskStatus.RanToCompletion, Me.ActionTask.Status))
Catch ex As AggregateException
Me.OnExceptionOccurred(ex)
Finally
Me.TaskCancellationSource.Dispose()
End Try
End Function
''' <summary> Starts Streaming the events. </summary>
''' <exception cref="InvalidOperationException"> Thrown when the requested operation is invalid. </exception>
''' <param name="bucketKey"> The bucket key. </param>
''' <param name="timeout"> The timeout. </param>
''' <param name="streamEntitiesAction"> The action to stream the entities, which calls
''' <see cref="StreamEvents(Of T)(IEnumerable(Of T), IEnumerable(Of Date), Integer, String)"/>. </param>
Public Overridable Sub StartStreamEvents(ByVal bucketKey As String, ByVal timeout As TimeSpan, ByVal streamEntitiesAction As Action)
If Me.IsTaskActive Then
Throw New InvalidOperationException($"Stream task is {Me.ActionTask.Status}")
Else
Me._TaskCancellationSource = New Threading.CancellationTokenSource
Me.TaskCancellationSource.Token.Register(AddressOf Me.StreamTaskCanceled)
Me.TaskCancellationSource.CancelAfter(timeout)
' the action class is created withing the Async/Await function
Me._AwaitingTask = Me.AsyncAwaitTask(streamEntitiesAction)
End If
End Sub
first, check that who uses port 8080.
if the port 8080 is in use, change the listening port to 8181.
if you use IDEA, modify start configuration, Run-> Edit Configuration enter image description here
if you use mvn spring-boot, then use the command:
mvn spring-boot:run -Dserver.port=8181
if you use java -jar, then use the command:
java -jar xxxx.jar --server.port=8181
Current date and time
$current_date_time = date('Y-m-d H:i:s');
15 min ago Date and time
$newTime = date("Y-m-d H:i:s",strtotime("+15 minutes", strtotime($current_date)));
Why to complicate a situation if you can just write like it? (yes -> low cohesion, hardcoded -> but it is a example and unfortunately with imperative way). For additional info read code example at below ;))
package timer.test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.time.Duration;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.concurrent.*;
public class TestKitTimerWithExecuterService {
private static final Logger log = LoggerFactory.getLogger(TestKitTimerWithExecuterService.class);
private static final ScheduledExecutorService executorService
= Executors.newSingleThreadScheduledExecutor();// equal to => newScheduledThreadPool(1)/ Executor service with one Thread
private static ScheduledFuture<?> future; // why? because scheduleAtFixedRate will return you it and you can act how you like ;)
public static void main(String args[]){
log.info("main thread start");
Runnable task = () -> log.info("******** Task running ********");
LocalDateTime now = LocalDateTime.now();
LocalDateTime whenToStart = LocalDate.now().atTime(20, 11); // hour, minute
Duration duration = Duration.between(now, whenToStart);
log.info("WhenToStart : {}, Now : {}, Duration/difference in second : {}",whenToStart, now, duration.getSeconds());
future = executorService.scheduleAtFixedRate(task
, duration.getSeconds() // difference in second - when to start a job
,2 // period
, TimeUnit.SECONDS);
try {
TimeUnit.MINUTES.sleep(2); // DanDig imitation of reality
cancelExecutor(); // after canceling Executor it will never run your job again
} catch (InterruptedException e) {
e.printStackTrace();
}
log.info("main thread end");
}
public static void cancelExecutor(){
future.cancel(true);
executorService.shutdown();
log.info("Executor service goes to shut down");
}
}
mongoimport --jsonArray -d DatabaseN -c collectionName /filePath/filename.json
Going by the comments as well as personal experience, I say no, there is no need for range(len(a))
. Everything you can do with range(len(a))
can be done in another (usually far more efficient) way.
You gave many examples in your post, so I won't repeat them here. Instead, I will give an example for those who say "What if I want just the length of a
, not the items?". This is one of the only times you might consider using range(len(a))
. However, even this can be done like so:
>>> a = [1, 2, 3, 4]
>>> for _ in a:
... print True
...
True
True
True
True
>>>
Clements answer (as shown by Allik) can also be reworked to remove range(len(a))
:
>>> a = [6, 3, 1, 2, 5, 4]
>>> sorted(range(len(a)), key=a.__getitem__)
[2, 3, 1, 5, 4, 0]
>>> # Note however that, in this case, range(len(a)) is more efficient.
>>> [x for x, _ in sorted(enumerate(a), key=lambda i: i[1])]
[2, 3, 1, 5, 4, 0]
>>>
So, in conclusion, range(len(a))
is not needed. Its only upside is readability (its intention is clear). But that is just preference and code style.
use value
instead of query
(must specify index of node to return in the XQuery as well as passing the sql data type to return as the second parameter):
select
xt.Id
, x.m.value( '@id[1]', 'varchar(max)' ) MetricId
from
XmlTest xt
cross apply xt.XmlData.nodes( '/Sqm/Metrics/Metric' ) x(m)
Here is what worked for me.
To set the server anonymous to inherit from the app pool identity do the following..
You can use the function getBBox() to get the bounding box for the path. This will give you the position and size of the tightest rectangle that could contain the rendered path.
An advantage of using this method over reading the x and y values is that it will work with all graphical objects. There are more objects than paths that do not have x and y, for example circles that have cx and cy instead.
So this error is occurring because you have a value in your source for the AppID column that is not valid for your AppID column in the destination.
Some possible examples:
SSIS is governed by metadata, and it expects that you've set up your inputs and outputs properly such that the acceptable values for both are within the same range.
Xavi's code was allmost fully working. But when navigating to another page, submitting a form, then being redirected to the page with my tabs was not loading the saved tab at all.
localStorage to the rescue (slightly changed Nguyen's code):
$('a[data-toggle="tab"]').click(function (e) {
e.preventDefault();
$(this).tab('show');
});
$('a[data-toggle="tab"]').on("shown.bs.tab", function (e) {
var id = $(e.target).attr("href");
localStorage.setItem('selectedTab', id)
});
var selectedTab = localStorage.getItem('selectedTab');
if (selectedTab != null) {
$('a[data-toggle="tab"][href="' + selectedTab + '"]').tab('show');
}
System.TypeInitializationException
happens when the code that gets executed during the process of loading the type throws an exception.
When .NET loads the type, it must prepare all its static fields before the first time that you use the type. Sometimes, initialization requires running code. It is when that code fails that you get a System.TypeInitializationException
.
In your specific case, the following three static fields run some code:
private static string s_bstCommonAppData = Path.Combine(s_commonAppData, "XXXX");
private static string s_bstUserDataDir = Path.Combine(s_bstCommonAppData, "UserData");
private static string s_commonAppData = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);
Note that s_bstCommonAppData
depends on s_commonAppData
, but it is declared ahead of its dependency. Therefore, the value of s_commonAppData
is null
at the time that the Path.Combine
is called, resulting in ArgumentNullException
. Same goes for the s_bstUserDataDir
and s_bstCommonAppData
: they are declared in reverse order to the desired order of initialization.
Re-order the lines to fix this problem:
private static string s_commonAppData = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);
private static string s_bstCommonAppData = Path.Combine(s_commonAppData, "XXXX");
private static string s_bstUserDataDir = Path.Combine(s_bstCommonAppData, "UserData");
Just add AsEnumerable() andToList() , so it looks like this
db.Favorites
.Where(x => x.userId == userId)
.Join(db.Person, x => x.personId, y => y.personId, (x, y).ToList().AsEnumerable()
ToList().AsEnumerable()
If it is related to the SSIS Package check may be possible that your source db contains few null rows. After removing them this issue will not appear any more.
foreach (var f in Directory.GetFiles(".", "*.dll"))
Assembly.LoadFrom(f);
That loads all the DLLs present in your executable's folder.
In my case I was trying to use Reflection
to find all subclasses of a class, even in other DLLs. This worked, but I'm not sure if it's the best way to do it.
EDIT: I timed it, and it only seems to load them the first time.
Stopwatch stopwatch = new Stopwatch();
for (int i = 0; i < 4; i++)
{
stopwatch.Restart();
foreach (var f in Directory.GetFiles(".", "*.dll"))
Assembly.LoadFrom(f);
stopwatch.Stop();
Console.WriteLine(stopwatch.ElapsedMilliseconds);
}
Output: 34 0 0 0
So one could potentially run that code before any Reflection searches just in case.
Use the observer pattern. It works like this:
interface MyListener{
void somethingHappened();
}
public class MyForm implements MyListener{
MyClass myClass;
public MyForm(){
this.myClass = new MyClass();
myClass.addListener(this);
}
public void somethingHappened(){
System.out.println("Called me!");
}
}
public class MyClass{
private List<MyListener> listeners = new ArrayList<MyListener>();
public void addListener(MyListener listener) {
listeners.add(listener);
}
void notifySomethingHappened(){
for(MyListener listener : listeners){
listener.somethingHappened();
}
}
}
You create an interface which has one or more methods to be called when some event happens. Then, any class which needs to be notified when events occur implements this interface.
This allows more flexibility, as the producer is only aware of the listener interface, not a particular implementation of the listener interface.
In my example:
MyClass
is the producer here as its notifying a list of listeners.
MyListener
is the interface.
MyForm
is interested in when somethingHappened
, so it is implementing MyListener
and registering itself with MyClass
. Now MyClass
can inform MyForm
about events without directly referencing MyForm
. This is the strength of the observer pattern, it reduces dependency and increases reusability.
You do not need to use ORDER BY
in inner query after WHERE
clause because you have already used it in ROW_NUMBER() OVER (ORDER BY VRDATE DESC)
.
SELECT
*
FROM (
SELECT
Stockmain.VRNOA,
item.description as item_description,
party.name as party_name,
stockmain.vrdate,
stockdetail.qty,
stockdetail.rate,
stockdetail.amount,
ROW_NUMBER() OVER (ORDER BY VRDATE DESC) AS RowNum --< ORDER BY
FROM StockMain
INNER JOIN StockDetail
ON StockMain.stid = StockDetail.stid
INNER JOIN party
ON party.party_id = stockmain.party_id
INNER JOIN item
ON item.item_id = stockdetail.item_id
WHERE stockmain.etype='purchase'
) AS MyDerivedTable
WHERE
MyDerivedTable.RowNum BETWEEN 1 and 5
I had the same problem too. In my case the problem started after a reboot. I closed my App, then I closed the Android Studio (In my case V1.1.0), and finally a normal shutdown. After that, I modified one java file to add a RadioGroup object and then the problem appeared.
I solved my problem only changing a simple '0' for a '1' in my Gradle configuration file, because the root cause of the problem was generated at the Gradle execution process. Previously I used to have version '1.0.0' then i changed it to '1.1.0', as stated in the pictures.
Location of the Gradle configuration a changed
Location where I took the right version from (File -> Settings -> Gradle -> Experimental
Yes, you understood correctly.
CountDownLatch
works in latch principle, the main thread will wait until the gate is open. One thread waits for n threads, specified while creating the CountDownLatch
.
Any thread, usually the main thread of the application, which calls CountDownLatch.await()
will wait until count reaches zero or it's interrupted by another thread. All other threads are required to count down by calling CountDownLatch.countDown()
once they are completed or ready.
As soon as count reaches zero, the waiting thread continues. One of the disadvantages/advantages of CountDownLatch
is that it's not reusable: once count reaches zero you cannot use CountDownLatch
any more.
Edit:
Use CountDownLatch
when one thread (like the main thread) requires to wait for one or more threads to complete, before it can continue processing.
A classical example of using CountDownLatch
in Java is a server side core Java application which uses services architecture, where multiple services are provided by multiple threads and the application cannot start processing until all services have started successfully.
P.S. OP's question has a pretty straightforward example so I didn't include one.
UILabel *mycoollabel=[[UILabel alloc]initWithFrame:CGRectMake(10, 70, 50, 50)];
mycoollabel.text=@"I am cool";
// for multiple lines,if text lenght is long use next line
mycoollabel.numberOfLines=0;
[self.View addSubView:mycoollabel];
I had
tools:replace="android:allowBackup"
in my AndroidManifest.xml file.
I have got the exact information in merged manifest section.
After removing it the error got resolved.
Simply, You can make this method static as below:
public static void startChronometer(){
mChronometer.start();
showElapsedTime();
}
you can call this function in other class as below:
MainActivity.startChronometer();
Please use this command:
readlink -f $(which java)
It works for me with Ubuntu gnome.
On my computer the result is:
/usr/lib/jvm/java-7-oracle/jre/bin/java
Regards.
I can't comment so here goes. About @David Storey answer.
Be careful on the "order of execution" in CSS3 chains! The order is right to left, not left to right.
transformation: translate(0,10%) rotate(25deg);
The rotate
operation is done first, then the translate
.
See: CSS3 transform order matters: rightmost operation first
If you don't have access to the file php.ini
, create or edit a .htaccess
file in the root of your domain or sub and add this (generated by cpanel):
<IfModule mime_module>
AddType application/x-httpd-ea-php56 .php .php5 .phtml
</IfModule>
<IfModule php5_module>
php_value date.timezone "America/New_York"
</IfModule>
<IfModule lsapi_module>
php_value date.timezone "America/New_York"
</IfModule>
You can hide navigation bar, just call this method on your onCreate()
,
public void FullScreencall() {
if(Build.VERSION.SDK_INT < 19){
View v = this.getWindow().getDecorView();
v.setSystemUiVisibility(View.GONE);
} else {
//for higher api versions.
View decorView = getWindow().getDecorView();
int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
decorView.setSystemUiVisibility(uiOptions);
}
}
This will hide whole nagiation panel.hope it helps you
You dont need jquery-migrate. Summarizing previous answers, here is a working html:
<html>
<body>
<a id='linkButton'>ClickMe</a>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/2.0.1/css/toastr.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/2.0.1/js/toastr.js"></script>
<script type="text/javascript">
$(document).ready(function() {
toastr.options.timeOut = 1500; // 1.5s
toastr.info('Page Loaded!');
$('#linkButton').click(function() {
toastr.success('Click Button');
});
});
</script>
</body>
</html>
Check your server config file /etc/mysql/my.cnf
- verify bind_address
is not set to 127.0.0.1
. Set it to 0.0.0.0
or comment it out then restart server with:
sudo service mysql restart
STS has a metadata folder under its workspace. You will see the actual error in .log file under C:\Users\firstname.lastname\Documents\workspace-sts-3.9.2.RELEASE.metadata
The selected answer dates from a while back. It is not practical to declare every binding in a custom HK2 binder. I'm using Tomcat and I just had to add one dependency. Even though it was designed for Glassfish it fits perfectly into other containers.
<dependency>
<groupId>org.glassfish.jersey.containers.glassfish</groupId>
<artifactId>jersey-gf-cdi</artifactId>
<version>${jersey.version}</version>
</dependency>
Make sure your container is properly configured too (see the documentation).
this works for me, so try it :
Microsoft.Office.Interop.Excel.Range rng =(Microsoft.Office.Interop.Excel.Range)XcelApp.Cells[1, i];
rng.Font.Bold = true;
rng.Interior.Color =System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Yellow);
rng.BorderAround();
<TextView
android:id="@+id/layone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Previous Page"
android:textColor="#000000"
android:textSize="16dp"
android:paddingLeft="10dp"
android:layout_marginTop="10dp"
android:visibility="gone" />
layone is a TextView.
You got your id wrong.
LinearLayout layone= (LinearLayout) view.findViewById(R.id.laytwo);// change id here
layone.setVisibility(View.VISIBLE);
should do the job.
or change like this to show the TextView:
TextView layone= (TextView) view.findViewById(R.id.layone);
layone.setVisibility(View.VISIBLE);
First all answers are right, you can pass the data except custom objects by using Intent
. If you want to pass the custom objects, you have to implement Serialazable
or Parcelable
to your custom object class. I thought it's too much complicated...
So if your project is simple, try to use DataCache
. That provides super simple way for passing data.
Ref: Github project CachePot
1- Set this to View or Activity or Fragment which will send data
DataCache.getInstance().push(obj);
2- Get data anywhere like below
public class MainFragment extends Fragment
{
private YourObject obj;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
obj = DataCache.getInstance().pop(YourObject.class);
}//end onCreate()
}//end class MainFragment
You may have not set the output file.
JQuery Code:
$('#mySelect').change(function () {
$('#mySelect').css("background", $("select option:selected").css("background-color"));
});
This will replace the select
's background-color
with selected option
's background-color
.
Using Swift 3 or 4 you can access these http request for sever communication.
// For POST data to request
func postAction() {
//declare parameter as a dictionary which contains string as key and value combination. considering inputs are valid
let parameters = ["id": 13, "name": "jack"] as [String : Any]
//create the url with URL
let url = URL(string: "www.requestURL.php")! //change the url
//create the session object
let session = URLSession.shared
//now create the URLRequest object using the url object
var request = URLRequest(url: url)
request.httpMethod = "POST" //set http method as POST
do {
request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted) // pass dictionary to nsdata object and set it as request body
} catch let error {
print(error.localizedDescription)
}
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
//create dataTask using the session object to send data to the server
let task = session.dataTask(with: request as URLRequest, completionHandler: { data, response, error in
guard error == nil else {
return
}
guard let data = data else {
return
}
do {
//create json object from data
if let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers) as? [String: Any] {
print(json)
// handle json...
}
} catch let error {
print(error.localizedDescription)
}
})
task.resume() }
// For get the data from request
func GetRequest() {
let urlString = URL(string: "http://www.requestURL.php") //change the url
if let url = urlString {
let task = URLSession.shared.dataTask(with: url) { (data, response, error) in
if error != nil {
print(error ?? "")
} else {
if let responceData = data {
print(responceData) //JSONSerialization
do {
//create json object from data
if let json = try JSONSerialization.jsonObject(with:responceData, options: .mutableContainers) as? [String: Any] {
print(json)
// handle json...
}
} catch let error {
print(error.localizedDescription)
}
}
}
}
task.resume()
}
}
// For get the download content like image or video from request
func downloadTask() {
// Create destination URL
let documentsUrl:URL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first as URL!
let destinationFileUrl = documentsUrl.appendingPathComponent("downloadedFile.jpg")
//Create URL to the source file you want to download
let fileURL = URL(string: "http://placehold.it/120x120&text=image1")
let sessionConfig = URLSessionConfiguration.default
let session = URLSession(configuration: sessionConfig)
let request = URLRequest(url:fileURL!)
let task = session.downloadTask(with: request) { (tempLocalUrl, response, error) in
if let tempLocalUrl = tempLocalUrl, error == nil {
// Success
if let statusCode = (response as? HTTPURLResponse)?.statusCode {
print("Successfully downloaded. Status code: \(statusCode)")
}
do {
try FileManager.default.copyItem(at: tempLocalUrl, to: destinationFileUrl)
} catch (let writeError) {
print("Error creating a file \(destinationFileUrl) : \(writeError)")
}
} else {
print("Error took place while downloading a file. Error description: %@", error?.localizedDescription ?? "");
}
}
task.resume()
}
In my Angular Bootstrap dropdowns I initialize the JSON Array (vm.zoneDropdown) with ng-init (you can also have ng-init inside the directive template) and I pass the Array in a custom src attribute
<custom-dropdown control-id="zone" label="Zona" model="vm.form.zone" src="vm.zoneDropdown"
ng-init="vm.getZoneDropdownSrc()" is-required="true" form="farmaciaForm" css-class="custom-dropdown col-md-3"></custom-dropdown>
Inside the controller:
vm.zoneDropdown = [];
vm.getZoneDropdownSrc = function () {
vm.zoneDropdown = $customService.getZone();
}
And inside the customDropdown directive template(note that this is only one part of the bootstrap dropdown):
<ul class="uib-dropdown-menu" role="menu" aria-labelledby="btn-append-to-body">
<li role="menuitem" ng-repeat="dropdownItem in vm.src" ng-click="vm.setValue(dropdownItem)">
<a ng-click="vm.preventDefault($event)" href="##">{{dropdownItem.text}}</a>
</li>
</ul>
Your question has 2 tasks to be performed. First to extract the Email attachments to a folder and saving or renaming it with a specific name.
If your search can be split to 2 searches you will get more hits. I could refer one page that explains how to save the attachment to a system folder <Link for the page to save attachments to a folder>.
Please post any page or code if you have found to save the attachment with specific name.
DataGridView.Refresh
and And DataGridView.Update
are methods that are inherited from Control. They have to do with redrawing the control which is why new rows don't appear.
My guess is the data retrieval is on the Form_Load. If you want your Button on Form B to retrieve the latest data from the database then that's what you have to do whatever Form_Load is doing.
A nice way to do that is to separate your data retrieval calls into a separate function and call it from both the From Load and Button Click events.
you can use clientscript. MSDN : Clientscript
String scriptText =
"alert('sdsd');";
ClientScript.RegisterOnSubmitStatement(this.GetType(),
"ConfirmSubmit", scriptText);
try this
ClientScript.RegisterStartupScript(this.GetType(), "JSScript", scriptText);
ClientScript.RegisterClientScriptBlock(this.GetType(), "alert", scriptText); //use this
You can use Apache Commmons Beanutils. The API is
org.apache.commons.beanutils.PropertyUtilsBean.copyProperties(Object dest, Object orig)
.
It copies property values from the "origin" bean to the "destination" bean for all cases where the property names are the same.
Now I am going to off topic. Using DTO is mostly considered an anti-pattern in EJB3. If your DTO and your domain objects are very alike, there is really no need to duplicate codes. DTO still has merits, especially for saving network bandwidth when remote access is involved. I do not have details about your application architecture, but if the layers you talked about are logical layers and does not cross network, I do not see the need for DTO.
There are probably embedded tabs (CHAR(9)
) etc. as well. You can find out what other characters you need to replace (we have no idea what your goal is) with something like this:
DECLARE @var NVARCHAR(255), @i INT;
SET @i = 1;
SELECT @var = AccountType FROM dbo.Account
WHERE AccountNumber = 200
AND AccountType LIKE '%Daily%';
CREATE TABLE #x(i INT PRIMARY KEY, c NCHAR(1), a NCHAR(1));
WHILE @i <= LEN(@var)
BEGIN
INSERT #x
SELECT SUBSTRING(@var, @i, 1), ASCII(SUBSTRING(@var, @i, 1));
SET @i = @i + 1;
END
SELECT i,c,a FROM #x ORDER BY i;
You might also consider doing better cleansing of this data before it gets into your database. Cleaning it every time you need to search or display is not the best approach.
As I did first preferably use SVG
images instead of all other types, If not possible compress all of your PNG
and JPG
resources using some image processing tools such as Adobe Photoshop
or Fotosizer
. one of the easiest ways is online image compressing tools like this which helped me to decrease all my image files to almost 50% of their initial size.
You are debugging two or more times. so the application may run more at a time. Then only this issue will occur. You should close all debugging applications using task-manager, Then debug again.
I have created on time task in which the task which user wants to repeat, add in the Custom TimeTask run() method. it is successfully reoccurring.
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Timer;
import java.util.TimerTask;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.TextView;
import android.app.Activity;
import android.content.Intent;
public class MainActivity extends Activity {
CheckBox optSingleShot;
Button btnStart, btnCancel;
TextView textCounter;
Timer timer;
MyTimerTask myTimerTask;
int tobeShown = 0 ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
optSingleShot = (CheckBox)findViewById(R.id.singleshot);
btnStart = (Button)findViewById(R.id.start);
btnCancel = (Button)findViewById(R.id.cancel);
textCounter = (TextView)findViewById(R.id.counter);
tobeShown = 1;
if(timer != null){
timer.cancel();
}
//re-schedule timer here
//otherwise, IllegalStateException of
//"TimerTask is scheduled already"
//will be thrown
timer = new Timer();
myTimerTask = new MyTimerTask();
if(optSingleShot.isChecked()){
//singleshot delay 1000 ms
timer.schedule(myTimerTask, 1000);
}else{
//delay 1000ms, repeat in 5000ms
timer.schedule(myTimerTask, 1000, 1000);
}
btnStart.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
Intent i = new Intent(MainActivity.this, ActivityB.class);
startActivity(i);
/*if(timer != null){
timer.cancel();
}
//re-schedule timer here
//otherwise, IllegalStateException of
//"TimerTask is scheduled already"
//will be thrown
timer = new Timer();
myTimerTask = new MyTimerTask();
if(optSingleShot.isChecked()){
//singleshot delay 1000 ms
timer.schedule(myTimerTask, 1000);
}else{
//delay 1000ms, repeat in 5000ms
timer.schedule(myTimerTask, 1000, 1000);
}*/
}});
btnCancel.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
if (timer!=null){
timer.cancel();
timer = null;
}
}
});
}
@Override
protected void onResume() {
super.onResume();
if(timer != null){
timer.cancel();
}
//re-schedule timer here
//otherwise, IllegalStateException of
//"TimerTask is scheduled already"
//will be thrown
timer = new Timer();
myTimerTask = new MyTimerTask();
if(optSingleShot.isChecked()){
//singleshot delay 1000 ms
timer.schedule(myTimerTask, 1000);
}else{
//delay 1000ms, repeat in 5000ms
timer.schedule(myTimerTask, 1000, 1000);
}
}
@Override
protected void onPause() {
super.onPause();
if (timer!=null){
timer.cancel();
timer = null;
}
}
@Override
protected void onStop() {
super.onStop();
if (timer!=null){
timer.cancel();
timer = null;
}
}
class MyTimerTask extends TimerTask {
@Override
public void run() {
Calendar calendar = Calendar.getInstance();
SimpleDateFormat simpleDateFormat =
new SimpleDateFormat("dd:MMMM:yyyy HH:mm:ss a");
final String strDate = simpleDateFormat.format(calendar.getTime());
runOnUiThread(new Runnable(){
@Override
public void run() {
textCounter.setText(strDate);
}});
}
}
}
Why so complicated? When you can do:
var loadTime = window.performance.timing.domContentLoadedEventEnd- window.performance.timing.navigationStart;
If you need more times check out the window.performance object:
console.log(window.performance);
Will show you the timing object:
connectEnd Time when server connection is finished.
connectStart Time just before server connection begins.
domComplete Time just before document readiness completes.
domContentLoadedEventEnd Time after DOMContentLoaded event completes.
domContentLoadedEventStart Time just before DOMContentLoaded starts.
domInteractive Time just before readiness set to interactive.
domLoading Time just before readiness set to loading.
domainLookupEnd Time after domain name lookup.
domainLookupStart Time just before domain name lookup.
fetchStart Time when the resource starts being fetched.
loadEventEnd Time when the load event is complete.
loadEventStart Time just before the load event is fired.
navigationStart Time after the previous document begins unload.
redirectCount Number of redirects since the last non-redirect.
redirectEnd Time after last redirect response ends.
redirectStart Time of fetch that initiated a redirect.
requestStart Time just before a server request.
responseEnd Time after the end of a response or connection.
responseStart Time just before the start of a response.
timing Reference to a performance timing object.
navigation Reference to performance navigation object.
performance Reference to performance object for a window.
type Type of the last non-redirect navigation event.
unloadEventEnd Time after the previous document is unloaded.
unloadEventStart Time just before the unload event is fired.
This can be massively simplified with just 1 line of code in viewDidAppear:
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
tableViewHeightConstraint.constant = tableView.contentSize.height
}
Perhaps you should check your IDE case sensitive properties. I had the same problem, and solved it by making Idea case-sensitive (for my filesystem is case sensitive): https://confluence.jetbrains.com/display/IDEADEV/Filesystem+Case-Sensitivity+Mismatch
I had faced the similar error when supporting one application. It was about the generated classes for a SOAP Webservice.
The issue was caused due to the missing classes. When javax.xml.bind.Marshaller was trying to marshal the jaxb object it was not finding all dependent classes which were generated by using wsdl and xsd. after adding the jar with all the classes at the class path the issue was resolved.
You're probably setting a value for a key in the alertView, which is not allowed. The key is in this case LoginScreen
. I don't see any call to setValue()
, so I assume it's somewhere else in the code.
In my case I had an issue around using Microsoft.ReportViewer.WebForms. I removed validate=true from add verb
line in web.config and it started working:
<system.web>
<httpHandlers>
<add verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
I've found that the preferred solution does not handle line breaks.
I've found this approach works in all cases:
UILabel* dummyLabel = [UILabel new];
[dummyLabel setFrame:CGRectMake(0, 0, desiredWidth, CGFLOAT_MAX)];
dummyLabel.numberOfLines = 0;
[dummyLabel setLineBreakMode:NSLineBreakByWordWrapping];
dummyLabel.attributedText = myString;
[dummyLabel sizeToFit];
CGSize requiredSize = dummyLabel.frame.size;
The class Date/Timestamp
represents a specific instant in time, with millisecond precision, since January 1, 1970, 00:00:00 GMT. So this time difference (from epoch to current time) will be same in all computers across the world with irrespective of Timezone.
Date/Timestamp
doesn't know about the given time is on which timezone.
If we want the time based on timezone we should go for the Calendar or SimpleDateFormat classes in java.
If you try to print a Date/Timestamp object using toString()
, it will convert and print the time with the default timezone of your machine.
So we can say (Date/Timestamp).getTime() object will always have UTC (time in milliseconds)
To conclude Date.getTime()
will give UTC time, but toString()
is on locale specific timezone, not UTC.
The below code gives you a date (time in milliseconds) with specified timezones. The only problem here is you have to give date in string format.
DateFormat dateFormat = new SimpleDateFormat("yyyyMMdd HH:mm:ss");
dateFormatLocal.setTimeZone(timeZone);
java.util.Date parsedDate = dateFormatLocal.parse(date);
Use dateFormat.format
for taking input Date (which is always UTC), timezone and return date as String.
If you print the parsedDate
object, the time will be in default timezone.
But you can store the UTC time in DB like below.
Calendar calGMT = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
Timestamp tsSchedStartTime = new Timestamp (parsedDate.getTime());
if (tsSchedStartTime != null) {
stmt.setTimestamp(11, tsSchedStartTime, calGMT );
} else {
stmt.setNull(11, java.sql.Types.DATE);
}
For me just removed the OLE DB source from SSIS and added again. Worked!
A few things here...
If you want to call a function when the onclick event happens, you'll just want the function name plus the parameters.
Then if your parameters are a variable (which they look like they are), then you won't want quotes around them. Not only that, but if these are global variables, you'll want to add in "window." before that, because that's the object that holds all global variables.
Lastly, if these parameters aren't variables, you'll want to exclude the slashes to escape those characters. Since the value of onclick is wrapped by double quotes, single quotes won't be an issue. So your answer will look like this...
<a href=# onclick="ReAssign('valuationId', window.user)">Re-Assign</a>
There are a few extra things to note here, if you want more than a quick solution.
You looked like you were trying to use the + operator to combine strings in HTML. HTML is a scripting language, so when you're writing it, the whole thing is just a string itself. You can just skip these from now on, because it's not code your browser will be running (just a whole bunch of stuff, and anything that already exists is what has special meaning by the browser).
Next, you're using an anchor tag/link that doesn't actually take the user to another website, just runs some code. I'd use something else other than an anchor tag, with the appropriate CSS to format it to look the way you want. It really depends on the setting, but in many cases, a span tag will do. Give it a class (like class="runjs") and have a rule of CSS for that. To get it to imitate a link's behavior, use this:
.runjs {
cursor: pointer;
text-decoration: underline;
color: blue;
}
This lets you leave out the href attribute which you weren't using anyways.
Last, you probably want to use JavaScript to set the value of this link's onclick attribute instead of hand writing it. It keeps your page cleaner by keeping the code of your page separate from what the structure of your page. In your class, you could change all these links like this...
var links = document.getElementsByClassName('runjs');
for(var i = 0; i < links.length; i++)
links[i].onclick = function() { ReAssign('valuationId', window.user); };
While this won't work in some older browsers (because of the getElementsByClassName method), it's just three lines and does exactly what you're looking for. Each of these links has an anonymous function tied to them meaning they don't have any variable tied to them except that tag's onclick value. Plus if you wanted to, you could include more lines of code this way, all grouped up in one tidy location.
I had a similar problem but all answers here didn't help me.
For me the problem was a failing test. If you are doing test driven development than a failing / not implemented test shouldn't break the build. I still want my project to build.
To solve this I added a configuration to surefire so that it ignores a failing test.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<configuration>
<testFailureIgnore>true</testFailureIgnore>
</configuration>
</plugin>
Parse timespan to DateTime. For Example.
//The time will be "8.30 AM" or "10.00 PM" or any time like this format.
public TimeSpan GetTimeSpanValue(string displayValue)
{
DateTime dateTime = DateTime.Now;
if (displayValue.StartsWith("10") || displayValue.StartsWith("11") || displayValue.StartsWith("12"))
dateTime = DateTime.ParseExact(displayValue, "hh:mm tt", CultureInfo.InvariantCulture);
else
dateTime = DateTime.ParseExact(displayValue, "h:mm tt", CultureInfo.InvariantCulture);
return dateTime.TimeOfDay;
}
what I'd call a hack, but given that you're only processing hour values, you can do
hour=08
echo $(( ${hour#0} +1 ))
9
hour=10
echo $(( ${hour#0} +1))
11
with little risk.
IHTH.
OK, finally I found a good solution for my bill printing task and it is working properly for me.
This class provides the print service
public class PrinterService {
public PrintService getCheckPrintService(String printerName) {
PrintService ps = null;
DocFlavor doc_flavor = DocFlavor.STRING.TEXT_PLAIN;
PrintRequestAttributeSet attr_set =
new HashPrintRequestAttributeSet();
attr_set.add(new Copies(1));
attr_set.add(Sides.ONE_SIDED);
PrintService[] service = PrintServiceLookup.lookupPrintServices(doc_flavor, attr_set);
for (int i = 0; i < service.length; i++) {
System.out.println(service[i].getName());
if (service[i].getName().equals(printerName)) {
ps = service[i];
}
}
return ps;
}
}
This class demonstrates the bill printing task,
public class HelloWorldPrinter implements Printable {
@Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
if (pageIndex > 0) { /* We have only one page, and 'page' is zero-based */
return NO_SUCH_PAGE;
}
Graphics2D g2d = (Graphics2D) graphics;
g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
//the String to print in multiple lines
//writing a semicolon (;) at the end of each sentence
String mText = "SHOP MA;"
+ "Pannampitiya;"
+ "----------------------------;"
+ "09-10-2012 harsha no: 001 ;"
+ "No Item Qty Price Amount ;"
+ "----------------------------;"
+ "1 Bread 1 50.00 50.00 ;"
+ "----------------------------;";
//Prepare the rendering
//split the String by the semicolon character
String[] bill = mText.split(";");
int y = 15;
Font f = new Font(Font.SANS_SERIF, Font.PLAIN, 8);
graphics.setFont(f);
//draw each String in a separate line
for (int i = 0; i < bill.length; i++) {
graphics.drawString(bill[i], 5, y);
y = y + 15;
}
/* tell the caller that this page is part of the printed document */
return PAGE_EXISTS;
}
public void pp() throws PrinterException {
PrinterService ps = new PrinterService();
//get the printer service by printer name
PrintService pss = ps.getCheckPrintService("Deskjet-1000-J110-series-2");
PrinterJob job = PrinterJob.getPrinterJob();
job.setPrintService(pss);
job.setPrintable(this);
try {
job.print();
} catch (PrinterException ex) {
ex.printStackTrace();
}
}
public static void main(String[] args) {
HelloWorldPrinter hwp = new HelloWorldPrinter();
try {
hwp.pp();
} catch (Exception e) {
e.printStackTrace();
}
}
}
On the server, try:
netstat -an
and look to see if tcp port 22
is opened (use findstr
in Windows or grep
in Unix).
There was a bug in iOS 6, that causes line height to be ignored when font is set. See answer to NSParagraphStyle line spacing ignored and longer bug analysis at Radar: UITextView Ignores Minimum/Maximum Line Height in Attributed String.
Use this simple code for DataTables custom sorting. Its 100% work
<script>
$(document).ready(function() {
$('#myTable').DataTable( {
"order": [[ 0, "desc" ]] // "0" means First column and "desc" is order type;
} );
} );
</script>
See in Datatables website
https://datatables.net/examples/basic_init/table_sorting.html
Do this in jQuery. The below code works well even if you columns generated automatically or not sure about the column number.
var table = $('#tbl').DataTable({
"columnDefs": [{ targets: 'no-sort', orderable: false }]});
and add a class 'no-sort' to whatever headers you want to disable sort like this..
<th class="no-sort">Header n</th>
In order to connect my git bash to the postgreSQL, I had to add at least 4 environment variables to the windows. Git, Node.js, System 32 and postgreSQL. This is what I set as the value for the Path variable: C:\Windows\System32;C:\Program Files\Git\cmd;C:\Program Files\nodejs;C:\Program Files\PostgreSQL\12\bin;
and It works perfectly.
With Kotlin, we can now make a generic function for this!
object RepeatHelper {
fun repeatDelayed(delay: Long, todo: () -> Unit) {
val handler = Handler()
handler.postDelayed(object : Runnable {
override fun run() {
todo()
handler.postDelayed(this, delay)
}
}, delay)
}
}
And to use, just do:
val delay = 1000L
RepeatHelper.repeatDelayed(delay) {
myRepeatedFunction()
}
I'm not sure if there's an easy way with just the built-in namedtuple. There's a nice module called recordtype that has this functionality:
>>> from recordtype import recordtype
>>> Node = recordtype('Node', [('val', None), ('left', None), ('right', None)])
>>> Node(3)
Node(val=3, left=None, right=None)
>>> Node(3, 'L')
Node(val=3, left=L, right=None)
Version 51 is Java 7, you probably use the wrong JDK. Check JAVA_HOME.
Branch prediction.
With a sorted array, the condition data[c] >= 128
is first false
for a streak of values, then becomes true
for all later values. That's easy to predict. With an unsorted array, you pay for the branching cost.
I was also facing same error when I was inserting the data into HIVE external table which was pointing to Elastic search cluster.
I replaced the older JAR elasticsearch-hadoop-2.0.0.RC1.jar
to elasticsearch-hadoop-5.6.0.jar
, and everything worked fine.
My Suggestion is please use the specific JAR as per the elastic search version. Don't use older JARs if you are using newer version of elastic search.
Thanks to this post Hive- Elasticsearch Write Operation #409
I have a SimpleCursorAdapter so I have to duplicate the data for use the respose in this post. So, I recommend you try this way:
for (int i = 0; i < spinnerRegion.getAdapter().getCount(); i++) {
if (spinnerRegion.getItemIdAtPosition(i) == Integer
.valueOf(signal.getInt(signal
.getColumnIndexOrThrow("id_region")))) {
spinnerRegion.setSelection(i);
break;
}
}
I think that is a real way
Here is what I did to solve just by 2 ways:
make ID column as int
type
if you are using autogenerate in ID dont assing value in the setter of ID. If your mapping the some then sometimes autogenetated ID is not concedered. (I dont know why)
try using @GeneratedValue(strategy=GenerationType.SEQUENCE)
if possible
I had the same problem and I used WinMerge to help me track this down. But as I researched it more, I found that Rick has the perfect blog post for it.
Summary:
<add namespace="System.Web.Optimization"/>
to both web.config filesInstall-Package -IncludePrerelease Microsoft.AspNet.Web.Optimization
As per this answer:
TimeZone tz = TimeZone.getTimeZone("EST");
boolean inDs = tz.inDaylightTime(new Date());
$('[class*="tag"]').live('click', function() {
if ($(this).hasClass('clickedTag')){
// code here
} else {
// and here
}
});
Have a look at this answer: Encrypt and decrypt with AES and Base64 encoding
read this...
Portable HttpClient for .NET Framework and Windows Phone
see paragraph Using HttpClient on .NET Framework 4.0 or Windows Phone 7.5 http://blogs.msdn.com/b/bclteam/archive/2013/02/18/portable-httpclient-for-net-framework-and-windows-phone.aspx
first Set id attribute of dropdownlist like i do here than use that id to get value in jquery or javascrip.
dropdownlist:
@Html.DropDownList("CompanyId", ViewBag.CompanyList as SelectList, "Select Company", new { @id="ddlCompany" })
jquery:
var id = jQuery("#ddlCompany option:selected").val();
I think you dont need SelectedText
but you may need
String status = "The status of my combobox is " + comboBoxTest.Text;
There's another reason unserialize()
failed because you improperly put serialized data into the database see Official Explanation here. Since serialize()
returns binary data and php variables don't care encoding methods, so that putting it into TEXT, VARCHAR() will cause this error.
Solution: store serialized data into BLOB in your table.
SIGABRT is, as stated in other answers, a general uncaught exception. You should definitely learn a little bit more about Objective-C. The problem is probably in your UITableViewDelegate method didSelectRowAtIndexPath.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
I can't tell you much more until you show us something of the code where you handle the table data source and delegate methods.
What could be the possible cause of this exception?
You may not have appropriate Jar in your class path.
How it could be removed?
By putting HTTPClient jar in your class path. If it's a webapp, copy Jar into WEB-INF/lib
if it's standalone, make sure you have this jar in class path or explicitly set using -cp
option
as the doc says,
Thrown if the Java Virtual Machine or a ClassLoader instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the new expression) and no definition of the class could be found.
The searched-for class definition existed when the currently executing class was compiled, but the definition can no longer be found.
Edit:
If you are using a dependency management like Maven/Gradle (see the answer below) or SBT please use it to bring the httpclient jar for you.
If this is a long calculation then I would go background worker. It has progress support. It also has support for cancel.
http://msdn.microsoft.com/en-us/library/cc221403(v=VS.95).aspx
Here I have a TextBox bound to contents.
private void backgroundWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
Debug.Write("backgroundWorker_RunWorkerCompleted");
if (e.Cancelled)
{
contents = "Cancelled get contents.";
NotifyPropertyChanged("Contents");
}
else if (e.Error != null)
{
contents = "An Error Occured in get contents";
NotifyPropertyChanged("Contents");
}
else
{
contents = (string)e.Result;
if (contentTabSelectd) NotifyPropertyChanged("Contents");
}
}
The most of the above given examples create a problem when a year has 53 weeks (like 2020). So every fourth year you will experience a week difference. This code does not:
$thisYear = "2020";
$thisDate = "2020-04-24"; //or any other custom date
$weeknr = date("W", strtotime($thisDate)); //when you want the weeknumber of a specific week, or just enter the weeknumber yourself
$tempDatum = new DateTime();
$tempDatum->setISODate($thisYear, $weeknr);
$tempDatum_start = $tempDatum->format('Y-m-d');
$tempDatum->setISODate($thisYear, $weeknr, 7);
$tempDatum_end = $tempDatum->format('Y-m-d');
echo $tempDatum_start //will output the date of monday
echo $tempDatum_end // will output the date of sunday
Turn on the fusion logging, see this question for lots of advice on how to do that. Debugging mixed-mode apps loading problems can be a right royal pain. The fusion logging can be a big help.
According to the stack trace:
Caused by: java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject at java.lang.ClassLoader.defineClass1(Native Method)
The issue is caused by "java.lang.NoClassDefFoundError", so I think you should focus on this.
The direct solution is to add dependency
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.12.1.GA</version>
</dependency>
to your pom.xml.
Since you only wish for the root activity to be reshown when the app is launched, maybe you can get this behavior by changing launch modes, etc. in the manifest?
For instance, have you tried applying the android:clearTaskOnLaunch="true" attribute to your launch activity, perhaps in tandem with android:launchMode="singleInstance"?
Tasks and Back Stack is a great resource for fine-tuning this sort of behavior.
You can also use jQuery - is(selector) Method:
var lastOpenSite = $(this).siblings().is(':not(.closedTab)');
Don't set an Id
to the object you are saving as the Id
will be autogenerated
java.lang.NoSuchMethodError: javax.servlet.ServletContext.getContextPath()Ljava/lang/String;
That method was added in Servlet 2.5.
So this problem can have at least 3 causes:
web.xml
is not declared conform Servlet 2.5 or newer.To solve it,
web.xml
complies Servlet 2.5 (or newer, at least the highest whatever your target runtime supports). For an example, see also somewhere halfway our servlets wiki page.servlet-api.jar
or j2ee.jar
in /WEB-INF/lib
or even worse, the JRE/lib
or JRE/lib/ext
. They do not belong there. This is a pretty common beginner's mistake in an attempt to circumvent compilation errors in an IDE, see also How do I import the javax.servlet API in my Eclipse project?.Try this.
public class StopWatch {
private long startTime = 0;
private long stopTime = 0;
public StopWatch()
{
startTime = System.currentTimeMillis();
}
public void start() {
startTime = System.currentTimeMillis();
}
public void stop() {
stopTime = System.currentTimeMillis();
System.out.println("StopWatch: " + getElapsedTime() + " milliseconds.");
System.out.println("StopWatch: " + getElapsedTimeSecs() + " seconds.");
}
/**
* @param process_name
*/
public void stop(String process_name) {
stopTime = System.currentTimeMillis();
System.out.println(process_name + " StopWatch: " + getElapsedTime() + " milliseconds.");
System.out.println(process_name + " StopWatch: " + getElapsedTimeSecs() + " seconds.");
}
//elaspsed time in milliseconds
public long getElapsedTime() {
return stopTime - startTime;
}
//elaspsed time in seconds
public double getElapsedTimeSecs() {
double elapsed;
elapsed = ((double)(stopTime - startTime)) / 1000;
return elapsed;
}
}
Usage:
StopWatch watch = new StopWatch();
// do something
watch.stop();
Console:
StopWatch: 143 milliseconds.
StopWatch: 0.143 seconds.
You'd need to make the enum expose value
somehow, e.g.
public enum Tax {
NONE(0), SALES(10), IMPORT(5);
private final int value;
private Tax(int value) {
this.value = value;
}
public int getValue() {
return value;
}
}
...
public int getTaxValue() {
Tax tax = Tax.NONE; // Or whatever
return tax.getValue();
}
(I've changed the names to be a bit more conventional and readable, btw.)
This is assuming you want the value assigned in the constructor. If that's not what you want, you'll need to give us more information.
This error occurs mostly because of field size. CHECK all the field sizes in a database table.
start from
JSONArray deletedtrs_array = sync_reponse.getJSONArray("deletedtrs");
you can iterate through JSONArray and use values directly or create Objects of your own type
which will handle data fields inside of each deletedtrs_array
member
Iterating
for(int i = 0; i < deletedtrs_array.length(); i++){
JSONObject obj = deletedtrs_array.getJSONObject(i);
Log.d("Item no."+i, obj.toString());
// create object of type DeletedTrsWrapper like this
DeletedTrsWrapper dtw = new DeletedTrsWrapper(obj);
// String company_id = obj.getString("companyid");
// String username = obj.getString("username");
// String date = obj.getString("date");
// int report_id = obj.getInt("reportid");
}
Own object type
class DeletedTrsWrapper {
public String company_id;
public String username;
public String date;
public int report_id;
public DeletedTrsWrapper(JSONObject obj){
company_id = obj.getString("companyid");
username = obj.getString("username");
date = obj.getString("date");
report_id = obj.getInt("reportid");
}
}
You can put @JsonSerialize(using = CustomDateSerializer.class)
over any date field of object to be serialized.
public class CustomDateSerializer extends SerializerBase<Date> {
public CustomDateSerializer() {
super(Date.class, true);
}
@Override
public void serialize(Date value, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonProcessingException {
SimpleDateFormat formatter = new SimpleDateFormat("EEE MMM dd yyyy HH:mm:ss 'GMT'ZZZ (z)");
String format = formatter.format(value);
jgen.writeString(format);
}
}
The solution above is great but in my case the injection was not working. I needed to use autowireBeanProperties instead, probably due to the way my context is configured:
import org.quartz.spi.TriggerFiredBundle;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.scheduling.quartz.SpringBeanJobFactory;
public final class AutowiringSpringBeanJobFactory extends SpringBeanJobFactory implements
ApplicationContextAware {
private transient AutowireCapableBeanFactory beanFactory;
@Override
public void setApplicationContext(final ApplicationContext context) {
beanFactory = context.getAutowireCapableBeanFactory();
}
@Override
protected Object createJobInstance(final TriggerFiredBundle bundle) throws Exception {
final Object job = super.createJobInstance(bundle);
//beanFactory.autowireBean(job);
beanFactory.autowireBeanProperties(job, AutowireCapableBeanFactory.AUTOWIRE_BY_TYPE, true);
return job;
}
}
Because I deal with both relative and absolute URLs, I updated veritas's solution like the code below.
You can try yourself here: https://ideone.com/PvpZ4J
function removeQueryStringFromUrl($url) {
if (substr($url,0,4) == "http") {
$urlPartsArray = parse_url($url);
$outputUrl = $urlPartsArray['scheme'] . '://' . $urlPartsArray['host'] . ( isset($urlPartsArray['path']) ? $urlPartsArray['path'] : '' );
} else {
$URLexploded = explode("?", $url, 2);
$outputUrl = $URLexploded[0];
}
return $outputUrl;
}
AVG version 18.1.3044 (with Windows 10) interfer with my local Spring application.
Solution: enter in AVG section called "Web and email" and disable the "email protection". AVG block the certificate if the site isn't secure.
I had many issues involving C# and SqlServer. I ended up doing the following:
Also make sure that all your machines run on the same timezone.
Regarding the different result sets you get, your first example is "July First" while the second is "4th of July" ...
Also, the second example can be also interpreted as "April 7th", it depends on your server localization configuration (my solution doesn't suffer from this issue).
EDIT: hh was replaced with HH, as it doesn't seem to capture the correct hour on systems with AM/PM as opposed to systems with 24h clock. See the comments below.
Change the order of statments. For me, changing the block of code
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/context
http://www.springframework.org/schema/beans/spring-beans.xsd"
with
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context"
is valid.
Just use Apache Commons
In my case we are migration multimodule application to Spring Boot. Unfortunately maven didnt execute all tests anymore in the modules. The naming of the Test Classes didnt change, we are following the naming conventions.
At the end it helped, when I added the dependency surefire-junit47
to the plugin maven-surefire-plugin
. But I could not explain, why, it was trial and error:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<dependencies>
<dependency>
<groupId>org.apache.maven.surefire</groupId>
<artifactId>surefire-junit47</artifactId>
<version>${maven-surefire-plugin.version}</version>
</dependency>
</dependencies>
For this type error: UnexpectedTypeException ERROR: We are trying to use incorrect Hibernate validator annotation on any bean property. For this same issue for my Springboot project( validating type 'java.lang.Integer')
The solution that worked for me is using @NotNull
for Integer.
If you use the nextLine() method immediately following the nextInt() method, nextInt() reads integer tokens; because of this, the last newline character for that line of integer input is still queued in the input buffer and the next nextLine() will be reading the remainder of the integer line (which is empty). So we read can read the empty space to another string might work. Check below code.
import java.util.Scanner;
public class Solution {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int i = scan.nextInt();
Double d = scan.nextDouble();
String f = scan.nextLine();
String s = scan.nextLine();
// Write your code here.
System.out.println("String: " + s);
System.out.println("Double: " + d);
System.out.println("Int: " + i);
}
}
Some browsers support Array.indexOf()
.
If not, you could augment the Array
object via its prototype like so...
if (!Array.prototype.indexOf)
{
Array.prototype.indexOf = function(searchElement /*, fromIndex */)
{
"use strict";
if (this === void 0 || this === null)
throw new TypeError();
var t = Object(this);
var len = t.length >>> 0;
if (len === 0)
return -1;
var n = 0;
if (arguments.length > 0)
{
n = Number(arguments[1]);
if (n !== n) // shortcut for verifying if it's NaN
n = 0;
else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0))
n = (n > 0 || -1) * Math.floor(Math.abs(n));
}
if (n >= len)
return -1;
var k = n >= 0
? n
: Math.max(len - Math.abs(n), 0);
for (; k < len; k++)
{
if (k in t && t[k] === searchElement)
return k;
}
return -1;
};
}
One way I like to use is Vanilla JavaScript with template literal:
var templateLiteral = [`
<!-- HTML_CODE_COMES_HERE -->
`]
var head = document.querySelector("head");
head.innerHTML = templateLiteral;
// The interface
interface Blah {
void something();
}
...
// Something that expects an object implementing that interface
void chewOnIt(Blah b) {
b.something();
}
...
// Let's provide an object of an anonymous class
chewOnIt(
new Blah() {
@Override
void something() { System.out.println("Anonymous something!"); }
}
);
public static final <T> List<T> getList(final Class<T[]> clazz, final String json)
{
final T[] jsonToObject = new Gson().fromJson(json, clazz);
return Arrays.asList(jsonToObject);
}
Example:
getList(MyClass[].class, "[{...}]");
You can use a JsonPath query to extract the value. And with JsonSurfer which is backed by Gson, your problem can be solved by simply two line of code!
JsonSurfer jsonSurfer = JsonSurfer.gson();
String result = jsonSurfer.collectOne(jsonLine, String.class, "$.data.translations[0].translatedText");
Check your X Window environment variables using the "env" command.
You can't cast a base object to a derived type - it isn't of that type.
If you have a base type pointer to a derived object, then you can cast that pointer around using dynamic_cast. For instance:
DerivedType D;
BaseType B;
BaseType *B_ptr=&B
BaseType *D_ptr=&D;// get a base pointer to derived type
DerivedType *derived_ptr1=dynamic_cast<DerivedType*>(D_ptr);// works fine
DerivedType *derived_ptr2=dynamic_cast<DerivedType*>(B_ptr);// returns NULL
By changing proxy settings to "no proxy" in netbeans the tomcat prbolem got solved.Try this it's seriously working.
Inside applicationContext.xml file of a maven Hibernet web app project below settings worked for me.
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/jee
http://www.springframework.org/schema/jee/spring-jee-3.0.xsd">
<jee:jndi-lookup id="dataSource"
jndi-name="Give_DataSource_Path_From_Your_Server"
expected-type="javax.sql.DataSource" />
Hope It will help someone.Thanks!
Don't know why but in my case it doesn't work the way suggested earlier. But it works like this:
Time.now.change(offset: "-3000")
Of course you need to change offset
value to yours.
The message is actually pretty clear: something creates a ThreadLocal
with value of type org.apache.axis.MessageContext
- this is a great hint. It most likely means that Apache Axis framework forgot/failed to cleanup after itself. The same problem occurred for instance in Logback. You shouldn't bother much, but reporting a bug to Axis team might be a good idea.
Tomcat reports this error because the ThreadLocal
s are created per HTTP worker threads. Your application is undeployed but HTTP threads remain - and these ThreadLocal
s as well. This may lead to memory leaks (org.apache.axis.MessageContext
can't be unloaded) and some issues when these threads are reused in the future.
For details see: http://wiki.apache.org/tomcat/MemoryLeakProtection
The code has the following issues:
<a4j:commandButton .../>
) does not work with attachments.a4j
tags.<a4j:commandButton .../>
to <h:commandButton .../>
.bw.write( getDomainDocument() );
to bw.write( document );
.String document = getDomainDocument();
to the first line of the try/catch
.<a4j:outputPanel.../>
(not shown) to <h:messages showDetail="false"/>
.Essentially, remove all the Ajax facilities related to the commandButton
. It is still possible to display error messages and leverage the RichFaces UI style.
Java - encrypt / decrypt user name and password from a configuration file
Code from above link
DESKeySpec keySpec = new DESKeySpec("Your secret Key phrase".getBytes("UTF8"));
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey key = keyFactory.generateSecret(keySpec);
sun.misc.BASE64Encoder base64encoder = new BASE64Encoder();
sun.misc.BASE64Decoder base64decoder = new BASE64Decoder();
.........
// ENCODE plainTextPassword String
byte[] cleartext = plainTextPassword.getBytes("UTF8");
Cipher cipher = Cipher.getInstance("DES"); // cipher is not thread safe
cipher.init(Cipher.ENCRYPT_MODE, key);
String encryptedPwd = base64encoder.encode(cipher.doFinal(cleartext));
// now you can store it
......
// DECODE encryptedPwd String
byte[] encrypedPwdBytes = base64decoder.decodeBuffer(encryptedPwd);
Cipher cipher = Cipher.getInstance("DES");// cipher is not thread safe
cipher.init(Cipher.DECRYPT_MODE, key);
byte[] plainTextPwdBytes = (cipher.doFinal(encrypedPwdBytes));
If you just want to check the type, you can use jQuery's .is() function,
Like in my case I used below,
if($("#id").is("select")) {
alert('Select');
else if($("#id").is("input")) {
alert("input");
}
var filtered = projects;
foreach (var tag in filteredTags) {
filtered = filtered.Where(p => p.Tags.Contains(tag))
}
The nice thing with this approach is that you can refine search results incrementally.
you just need to make background transparent of list divider and make height according to your needed gap.
<ListView
android:id="@+id/custom_list"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:divider="#00ffffff"
android:dividerHeight="20dp"/>
Use ValueAnimator:
ValueAnimator expandAnimation = ValueAnimator.ofInt(mainView.getHeight(), 400);
expandAnimation.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(final ValueAnimator animation) {
int height = (Integer) animation.getAnimatedValue();
RelativeLayout.LayoutParams lp = (LayoutParams) mainView.getLayoutParams();
lp.height = height;
}
});
expandAnimation.setDuration(500);
expandAnimation.start();
A delegate in C# is similar to a function pointer in C or C++. Using a delegate allows the programmer to encapsulate a reference to a method inside a delegate object. The delegate object can then be passed to code which can call the referenced method, without having to know at compile time which method will be invoked.
See this link --> http://www.akadia.com/services/dotnet_delegates_and_events.html
You likely want to use onupdate=datetime.now
so that UPDATEs also change the last_updated
field.
SQLAlchemy has two defaults for python executed functions.
default
sets the value on INSERT, only onceonupdate
sets the value to the callable result on UPDATE as well.window_handles
should give you the references to all open windows.
this is what the docu has to say about switching windows.
I spent some time looking for the best answer, and I think I have it.
This sql will give you the number of days between two dates as integer
:
SELECT
(EXTRACT(epoch from age('2017-6-15', now())) / 86400)::int
..which, when run today (2017-3-28
), provides me with:
?column?
------------
77
The misconception about the accepted answer:
select age('2010-04-01', '2012-03-05'),
date_part('year',age('2010-04-01', '2012-03-05')),
date_part('month',age('2010-04-01', '2012-03-05')),
date_part('day',age('2010-04-01', '2012-03-05'));
..is that you will get the literal difference between the parts of the date strings, not the amount of time between the two dates.
I.E:
Age(interval)=-1 years -11 mons -4 days;
Years(double precision)=-1;
Months(double precision)=-11;
Days(double precision)=-4;
You should analyze your style.css file, possibly using Developer Tools in your favorite browser, to see which rule sets font size on the element in a manner that overrides the one in a style
attribute. Apparently, it has to be one using the !important
specifier, which generally indicates poor logic and structure in styling.
Primarily, modify the style.css file so that it does not use !important
. Failing this, add !important
to the rule in style
attribute. But you should aim at reducing the use of !important
, not increasing it.
pd.date_range('2019-01-01', '2019-02-01').shape[0]
Very interesting question. I think it's mainly a semantic meaning, and may also be due to historical reasons.
Although in current Android Activity and Service implementations, getApplication()
and getApplicationContext()
return the same object, there is no guarantee that this will always be the case (for example, in a specific vendor implementation).
So if you want the Application class you registered in the Manifest, you should never call getApplicationContext()
and cast it to your application, because it may not be the application instance (which you obviously experienced with the test framework).
Why does getApplicationContext()
exist in the first place ?
getApplication()
is only available in the Activity class and the Service class, whereas getApplicationContext()
is declared in the Context class.
That actually means one thing : when writing code in a broadcast receiver, which is not a context but is given a context in its onReceive method, you can only call getApplicationContext()
. Which also means that you are not guaranteed to have access to your application in a BroadcastReceiver.
When looking at the Android code, you see that when attached, an activity receives a base context and an application, and those are different parameters. getApplicationContext()
delegates it's call to baseContext.getApplicationContext()
.
One more thing : the documentation says that it most cases, you shouldn't need to subclass Application:
There is normally no need to subclass
Application
. In most situation, static singletons can provide the same functionality in a more modular way. If your singleton needs a global context (for example to register broadcast receivers), the function to retrieve it can be given aContext
which internally usesContext.getApplicationContext()
when first constructing the singleton.
I know this is not an exact and precise answer, but still, does that answer your question?
This can be done safely using promises
function loadScript(src) {
return new Promise(function(resolve, reject) {
let script = document.createElement('script');
script.src = src;
script.onload = () => resolve(script);
script.onerror = () => reject(new Error("Script load error: " + src));
document.head.append(script);
});
}
and use like this
let promise = loadScript("https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.2.0/lodash.js");
promise.then(
script => alert(`${script.src} is loaded!`),
error => alert(`Error: ${error.message}`)
);
It can also be done this way:
figure(xx);
set(gcf, 'name', 'Name goes here')
gcf
gets the current figure handle.
You could use replicate
or sapply
:
R> colMeans(replicate(10000, sample(100, size=815, replace=TRUE, prob=NULL))) R> sapply(seq_len(10000), function(...) mean(sample(100, size=815, replace=TRUE, prob=NULL)))
replicate
is a wrapper for the common use of sapply
for repeated evaluation of an expression (which will usually involve random number generation).
To elaborate on this answer, in case you have multiple commits to move from, e.g. develop
to new_branch
:
git checkout develop # You're probably there already
git reflog # Find LAST_GOOD, FIRST_NEW, LAST_NEW hashes
git checkout new_branch
git cherry-pick FIRST_NEW^..LAST_NEW # ^.. includes FIRST_NEW
git reflog # Confirm that your commits are safely home in their new branch!
git checkout develop
git reset --hard LAST_GOOD # develop is now back where it started
@JohnHartsock: You can also write type="password". It's acceptable in aspx.
<asp:TextBox ID="txtBox" type="password" runat="server"/>
This works for me try it out
int main(){
char c;
scanf(" %c",&c);
printf("%c",c);
return 0;
}
You can more simply run one of the following commands:
Latest version:
nvm install node --reinstall-packages-from=node
Stable (LTS) version:
nvm install lts/* --reinstall-packages-from=node
This will install the appropriate version and reinstall all packages from the currently used node version. This saves you from manually handling the specific versions.
Edit - added command for installing LTS version according to @m4js7er comment.
Go to the appropriate subdirectory of the EDQP Tomcat installation directory. The default directories are:
On Linux: /opt/server/tomcat/bin
On Windows: c:\server\tomcat\bin
Run the startup command:
On Linux: ./startup.sh
On Windows: % startup.bat
Run the shutdown command:
On Linux: ./shutdown.sh
On Windows: % shutdown.bat
This is really weird, why nobody is mentioning the /IM switch ?! I've been using it for a long time in backup jobs. But I tried googling just now and I couldn't land on a single web page that says anything about it even on MS website !!! Also found so many user posts complaining about the same issue!!
Anyway.. to use Robocopy to overwrite EVERYTHING what ever size or time in source or distination you must include these three switches in your command (/IS /IT /IM)
/IS :: Include Same files. (Includes same size files)
/IT :: Include Tweaked files. (Includes same files with different Attributes)
/IM :: Include Modified files (Includes same files with different times).
This is the exact command I use to transfer few TeraBytes of mostly 1GB+ files (ISOs - Disk Images - 4K Videos):
robocopy B:\Source D:\Destination /E /J /COPYALL /MT:1 /DCOPY:DATE /IS /IT /IM /X /V /NP /LOG:A:\ROBOCOPY.LOG
I did a small test for you .. and here is the result:
Total Copied Skipped Mismatch FAILED Extras
Dirs : 1028 1028 0 0 0 169
Files : 8053 8053 0 0 0 1
Bytes : 649.666 g 649.666 g 0 0 0 1.707 g
Times : 2:46:53 0:41:43 0:00:00 0:41:44
Speed : 278653398 Bytes/sec.
Speed : 15944.675 MegaBytes/min.
Ended : Friday, August 21, 2020 7:34:33 AM
Dest, Disk: WD Gold 6TB (Compare the write speed with my result)
Even with those "Extras", that's for reporting only because of the "/X" switch. As you can see nothing was Skipped and Total number and size of all files are equal to the Copied. Sometimes It will show small number of skipped files when I abuse it and cancel it multiple times during operation but even with that the values in the first 2 columns are always Equal. I also confirmed that once before by running a PowerShell script that scans all files in destination and generate a report of all time-stamps.
Some performance tips from my history with it and so many tests & troubles!:
. Despite of what most users online advise to use maximum threads "/MT:128" like it's a general trick to get the best performance ... PLEASE DON'T USE "/MT:128" WITH VERY LARGE FILES ... that's a big mistake and it will decrease your drive performance dramatically after several runs .. it will create very high fragmentation or even cause the files system to fail in some cases and you end up spending valuable time trying to recover a RAW partition and all that nonsense. And above all that, It will perform 4-6 times slower!!
Hai sridhar, I found an answer for your prob
ClientScript.RegisterClientScriptBlock(GetType(), "sas", "<script> alert('Inserted successfully');</script>", true);
change false to true
or try this
ScriptManager.RegisterClientScriptBlock(ursavebuttonID, typeof(LinkButton or button), "sas", "<script> alert('Inserted successfully');</script>", true);
For what it's worth, there is Jackson Hibernate module project that just started, and which should solve this problem and hopefully others as well. Project is related to Jackson project, although not part of core source. This is mostly to allow simpler release process; it will require Jackson 1.7 as that's when Module API is being introduced.
I don't have much experience than above users but I faced this same issue and I Solved this with below Solution
<Button
android:id="@+id/btnRemove"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/btnEdit"
android:layout_weight="1"
android:background="@drawable/btn"
android:text="@string/remove"
android:onClick="btnRemoveClick"
/>
btnRemoveClick Click event
public void btnRemoveClick(View v)
{
final int position = listviewItem.getPositionForView((View) v.getParent());
listItem.remove(position);
ItemAdapter.notifyDataSetChanged();
}
for n,line in enumerate(open("file")):
if "pattern" in line: print n+1
I need to use visibility:hidden insted of display:none because visibility takes events, while display does not.
So I do .attr('visibility') === "visible"
Its not very elegant but in case you cant change the creation of dictionary, and all you need is a dirty hack, how about this:
var item = MyDictionary.Where(x => x.Key.ToLower() == MyIndex.ToLower()).FirstOrDefault();
if (item != null)
{
TheValue = item.Value;
}
Take a look at my implementation. It's safe from null lists.
IList<string> all= new List<string>();
if (letterForm.SecretaryPhone!=null)// first list may be null
all=all.Concat(letterForm.SecretaryPhone).ToList();
if (letterForm.EmployeePhone != null)// second list may be null
all= all.Concat(letterForm.EmployeePhone).ToList();
if (letterForm.DepartmentManagerName != null) // this is not list (its just string variable) so wrap it inside list then concat it
all = all.Concat(new []{letterForm.DepartmentManagerPhone}).ToList();
The OP wants to preserve 1:1 pixel data. As an astronomer working with science images I cannot allow any interpolation of image data as it would introduce unknown and unpredictable noise or errors. For example, here is a snippet from a 480x480 image saved via pyplot.savefig(): Detail of pixels which matplotlib resampled to be roughly 2x2, but notice the column of 1x2 pixels
You can see that most pixels were simply doubled (so a 1x1 pixel becomes 2x2) but some columns and rows became 1x2 or 2x1 per pixel which means the the original science data has been altered.
As hinted at by Alka, plt.imsave() which will achieve what the OP is asking for. Say you have image data stored in image array im, then one can do something like
plt.imsave(fname='my_image.png', arr=im, cmap='gray_r', format='png')
where the filename has the "png" extension in this example (but you must still specify the format with format='png' anyway as far as I can tell), the image array is arr, and we chose the inverted grayscale "gray_r" as the colormap. I usually add vmin and vmax to specify the dynamic range but these are optional.
The end result is a png file of exactly the same pixel dimensions as the im array.
Note: the OP specified no axes, etc. which is what this solution does exactly. If one wants to add axes, ticks, etc. my preferred approach is to do that on a separate plot, saving with transparent=True (PNG or PDF) then overlay the latter on the image. This guarantees you have kept the original pixels intact.
The difference between those will depend largely on what browser you are currently referring to. Each one implements these properties differently, or not at all. Quirksmode has great documentation regarding browser differences in regards to W3C standards like the DOM and JavaScript Events.
Maps are not ordered, so there is no such thing as 'the first entry', and that's also why there is no get-by-index method on Map
(or HashMap
).
You could do this:
Map<String, String> map = ...; // wherever you get this from
// Get the first entry that the iterator returns
Map.Entry<String, String> entry = map.entrySet().iterator().next();
(Note: Checking for an empty map omitted).
Your code doesn't get all the entries in the map, it returns immediately (and breaks out of the loop) with the first entry that's found.
To print the key and value of this first element:
System.out.println("Key: "+entry.getKey()+", Value: "+entry.getValue());
Note: Calling iterator()
does not mean that you are iterating over the whole map.
To receive a pure JSON string, without it being wrapped into an XML, you have to write the JSON string directly to the HttpResponse
and change the WebMethod
return type to void
.
[System.Web.Script.Services.ScriptService]
public class WebServiceClass : System.Web.Services.WebService {
[WebMethod]
public void WebMethodName()
{
HttpContext.Current.Response.Write("{property: value}");
}
}
From the Jinja2 template designer documentation:
{% if variable is defined %}
value of variable: {{ variable }}
{% else %}
variable is not defined
{% endif %}
If you don't really need the button element, just move the classes to a regular link:
<div class="btn-group">
<a href="/save/1" class="btn btn-primary active">
<i class="glyphicon glyphicon-floppy-disk" aria-hidden="true"></i> Save
</a>
<a href="/cancel/1" class="btn btn-default">Cancel</a>
</div>
Conversely, you can also change a button to appear like a link:
<button type="button" class="btn btn-link">Link</button>
You can do it using only the shell, no need for tr
or sed
$ str="This is just a test"
$ echo ${str// /_}
This_is_just_a_test
As nice as "return by value" might be, it's the kind of code that can lead one into error. Consider the following program:
#include <string>
#include <vector>
#include <iostream>
using namespace std;
static std::vector<std::string> strings;
std::vector<std::string> vecFunc(void) { return strings; };
int main(int argc, char * argv[]){
// set up the vector of strings to hold however
// many strings the user provides on the command line
for(int idx=1; (idx<argc); ++idx){
strings.push_back(argv[idx]);
}
// now, iterate the strings and print them using the vector function
// as accessor
for(std::vector<std::string>::interator idx=vecFunc().begin(); (idx!=vecFunc().end()); ++idx){
cout << "Addr: " << idx->c_str() << std::endl;
cout << "Val: " << *idx << std::endl;
}
return 0;
};
The above erroneous program will indicate no errors even if one uses the GNU g++ reporting options -Wall -Wextra -Weffc++
If you must produce a value, then the following would work in place of calling vecFunc() twice:
std::vector<std::string> lclvec(vecFunc());
for(std::vector<std::string>::iterator idx=lclvec.begin(); (idx!=lclvec.end()); ++idx)...
The above also produces no anonymous objects during iteration of the loop, but requires a possible copy operation (which, as some note, might be optimized away under some circumstances. But the reference method guarantees that no copy will be produced. Believing the compiler will perform RVO is no substitute for trying to build the most efficient code you can. If you can moot the need for the compiler to do RVO, you are ahead of the game.
Answer sans superfluous edge cases:
const thingsWithoutNulls = things.reduce((acc, thing) => {
if (thing !== null) {
acc.push(thing);
}
return acc;
}, [])
As for the question which event you should use for this: use the input
event, and fall back to keyup
/keydown
in older browsers.
Here’s an example, DOM0-style:
someElement.oninput = function() {
this.onkeydown = null;
// Your code goes here
};
someElement.onkeydown = function() {
// Your code goes here
};
The other question is how to count the number of characters in the string. Depending on your definition of “character”, all answers posted so far are incorrect. The string.length
answer is only reliable when you’re certain that only BMP Unicode symbols will be entered. For example, 'a'.length == 1
, as you’d expect.
However, for supplementary (non-BMP) symbols, things are a bit different. For example, ''.length == 2
, even though there’s only one Unicode symbol there. This is because JavaScript exposes UCS-2 code units as “characters”.
Luckily, it’s still possible to count the number of Unicode symbols in a JavaScript string through some hackery. You could use Punycode.js’s utility functions to convert between UCS-2 strings and Unicode code points for this:
// `String.length` replacement that only counts full Unicode characters
punycode.ucs2.decode('a').length; // 1
punycode.ucs2.decode('').length; // 1 (note that `''.length == 2`!)
P.S. I just noticed the counter script that Stack Overflow uses gets this wrong. Try entering , and you’ll see that it (incorrectly) counts as two characters.
BYTE *str1 = "Hello World";
std::string str2((char *)str1); /* construct on the stack */
Alternatively:
std::string *str3 = new std::string((char *)str1); /* construct on the heap */
cout << &str3;
delete str3;
I'd do it like this jsFiddle example.
JavaScript:
function check(elem) {
document.getElementById('mySelect1').disabled = !elem.selectedIndex;
}
HTML:
<form>
<select id="mySelect" onChange="check(this);">
<option>No</option>
<option>Yes</option>
</select>
<select id="mySelect1" disabled="disabled" >
<option>Dep1</option>
<option>Dep2</option>
<option>Dep3</option>
<option>Dep4</option>
</select>
</form>
Can't comment because I don't have enough reputation points, but recode only works on a vector, so the above code in @Stefano's answer should be
df <- iris %>%
mutate(Species = recode(Species,
setosa = "SETOSA",
versicolor = "VERSICOLOR",
virginica = "VIRGINICA")
)
Ping is meant to be sent only from server to client, and browser should answer as soon as possible with Pong OpCode, automatically. So you have not to worry about that on higher level.
Although that not all browsers support standard as they suppose to, they might have some differences in implementing such mechanism, and it might even means there is no Pong response functionality. But personally I am using Ping / Pong, and never saw client that does not implement this type of OpCode and automatic response on low level client side implementation.
Before you run make oldconfig
, you need to copy a kernel configuration file from an older kernel into the root directory of the new kernel.
You can find a copy of the old kernel configuration file on a running system at /boot/config-3.11.0
. Alternatively, kernel source code has configs in linux-3.11.0/arch/x86/configs/{i386_defconfig / x86_64_defconfig}
If your kernel source is located at /usr/src/linux
:
cd /usr/src/linux
cp /boot/config-3.9.6-gentoo .config
make oldconfig
This answer applies to using gVim on Windows 10. I cannot guarantee the same results for other operating systems.
Add:
set nobackup
set noswapfile
set noundofile
To your _vimrc file.
Note: This is the direct answer to the question (for Windows 10) and probably not the safest thing to do (read the other answers), but this is the fastest solution in my case.
export const users = require('../data'); // presumes @types/node are installed
const foundUser = users.find(user => user.id === 42);
// error: Parameter 'user' implicitly has an 'any' type.ts(7006)
--resolveJsonModule
--resolveJsonModule
compiler option:
import users from "./data.json" // `import` instead of `require`
const foundUser = users.find(user => user.id === 42); // user is strongly typed, no `any`!
There are some alternatives for other cases than static JSON import.
type User = { id: number; name: string /* and others */ }
const foundUser = users.find((user: User) => user.id === 42)
function isUserArray(maybeUserArr: any): maybeUserArr is Array<User> {
return Array.isArray(maybeUserArr) && maybeUserArr.every(isUser)
}
function isUser(user: any): user is User {
return "id" in user && "name" in user
}
if (isUserArray(users)) {
const foundUser = users.find((user) => user.id === 42)
}
You can even switch to assertion functions (TS 3.7+) to get rid of if
and throw an error instead.
function assertIsUserArray(maybeUserArr: any): asserts maybeUserArr is Array<User> {
if(!isUserArray(maybeUserArr)) throw Error("wrong json type")
}
assertIsUserArray(users)
const foundUser = users.find((user) => user.id === 42) // works
A runtime type check library like io-ts
or ts-runtime
can be integrated for more complex cases.
noImplicitAny: false
undermines many useful checks of the type system:
function add(s1, s2) { // s1,s2 implicitely get `any` type
return s1 * s2 // `any` type allows string multiplication and all sorts of types :(
}
add("foo", 42)
Also better provide an explicit User
type for user
. This will avoid propagating any
to inner layer types. Instead typing and validating is kept in the JSON processing code of the outer API layer.
If you want to enable CORS without using filters or without config file just add
@CrossOrigin
to the top of your controller and it work.
The code points used in icon font tricks are usually Private Use code points, which means that they have no generally defined meaning and should not be used in open information interchange, only by private agreement between interested parties. However, Private Use code points can be represented as any other Unicode value, e.g. in CSS using a notation like \f066
, as others have answered. You can even enter the code point as such, if your document is UTF-8 encoded and you know how to type an arbitrary Unicode value by its number in your authoring environment (but of course it would normally be displayed using a symbol for an unknown character).
However, this is not the normal way of using icon fonts. Normally you use a CSS file provided with the font and use constructs like <span class="icon-resize-small">foo</span>
. The CSS code will then take care of inserting the symbol at the start of the element, and you don’t need to know the code point number.
Something like this might be the easiest way.
<a href="mailto:?subject=I wanted you to see this site&body=Check out this site http://www.website.com."
title="Share by Email">
<img src="http://png-2.findicons.com/files/icons/573/must_have/48/mail.png">
</a>
You could find another email image and add that if you wanted.
First, it's always worth noting that git reset --hard
is a potentially dangerous command, since it throws away all your uncommitted changes. For safety, you should always check that the output of git status
is clean (that is, empty) before using it.
Initially you say the following:
So I know that Git tracks changes I make to my application, and it holds on to them until I commit the changes, but here's where I'm hung up:
That's incorrect. Git only records the state of the files when you stage them (with git add
) or when you create a commit. Once you've created a commit which has your project files in a particular state, they're very safe, but until then Git's not really "tracking changes" to your files. (for example, even if you do git add
to stage a new version of the file, that overwrites the previously staged version of that file in the staging area.)
In your question you then go on to ask the following:
When I want to revert to a previous commit I use: git reset --hard HEAD And git returns: HEAD is now at 820f417 micro
How do I then revert the files on my hard drive back to that previous commit?
If you do git reset --hard <SOME-COMMIT>
then Git will:
master
) back to point at <SOME-COMMIT>
.<SOME-COMMIT>
.HEAD
points to your current branch (or current commit), so all that git reset --hard HEAD
will do is to throw away any uncommitted changes you have.
So, suppose the good commit that you want to go back to is f414f31
. (You can find that via git log
or any history browser.) You then have a few different options depending on exactly what you want to do:
git reset --hard f414f31
. However, this is rewriting the history of your branch, so you should avoid it if you've shared this branch with anyone. Also, the commits you did after f414f31
will no longer be in the history of your master
branch.Create a new commit that represents exactly the same state of the project as f414f31
, but just adds that on to the history, so you don't lose any history. You can do that using the steps suggested in this answer - something like:
git reset --hard f414f31
git reset --soft HEAD@{1}
git commit -m "Reverting to the state of the project at f414f31"
to transfer to byte[]
(e.g. for saving to DB):
using (MemoryStream ms = new MemoryStream()) {
file.InputStream.CopyTo(ms);
byte[] array = ms.GetBuffer();
}
To transfer the input stream directly into the database, without storing it in the memory you can use this class taken from here and a bit changed:
public class VarbinaryStream : Stream {
private SqlConnection _Connection;
private string _TableName;
private string _BinaryColumn;
private string _KeyColumn;
private int _KeyValue;
private long _Offset;
private SqlDataReader _SQLReader;
private long _SQLReadPosition;
private bool _AllowedToRead = false;
public VarbinaryStream(
string ConnectionString,
string TableName,
string BinaryColumn,
string KeyColumn,
int KeyValue,
bool AllowRead = false)
{
// create own connection with the connection string.
_Connection = new SqlConnection(ConnectionString);
_TableName = TableName;
_BinaryColumn = BinaryColumn;
_KeyColumn = KeyColumn;
_KeyValue = KeyValue;
// only query the database for a result if we are going to be reading, otherwise skip.
_AllowedToRead = AllowRead;
if (_AllowedToRead == true)
{
try
{
if (_Connection.State != ConnectionState.Open)
_Connection.Open();
SqlCommand cmd = new SqlCommand(
@"SELECT TOP 1 [" + _BinaryColumn + @"]
FROM [dbo].[" + _TableName + @"]
WHERE [" + _KeyColumn + "] = @id",
_Connection);
cmd.Parameters.Add(new SqlParameter("@id", _KeyValue));
_SQLReader = cmd.ExecuteReader(
CommandBehavior.SequentialAccess |
CommandBehavior.SingleResult |
CommandBehavior.SingleRow |
CommandBehavior.CloseConnection);
_SQLReader.Read();
}
catch (Exception e)
{
// log errors here
}
}
}
// this method will be called as part of the Stream ímplementation when we try to write to our VarbinaryStream class.
public override void Write(byte[] buffer, int index, int count)
{
try
{
if (_Connection.State != ConnectionState.Open)
_Connection.Open();
if (_Offset == 0)
{
// for the first write we just send the bytes to the Column
SqlCommand cmd = new SqlCommand(
@"UPDATE [dbo].[" + _TableName + @"]
SET [" + _BinaryColumn + @"] = @firstchunk
WHERE [" + _KeyColumn + "] = @id",
_Connection);
cmd.Parameters.Add(new SqlParameter("@firstchunk", buffer));
cmd.Parameters.Add(new SqlParameter("@id", _KeyValue));
cmd.ExecuteNonQuery();
_Offset = count;
}
else
{
// for all updates after the first one we use the TSQL command .WRITE() to append the data in the database
SqlCommand cmd = new SqlCommand(
@"UPDATE [dbo].[" + _TableName + @"]
SET [" + _BinaryColumn + @"].WRITE(@chunk, NULL, @length)
WHERE [" + _KeyColumn + "] = @id",
_Connection);
cmd.Parameters.Add(new SqlParameter("@chunk", buffer));
cmd.Parameters.Add(new SqlParameter("@length", count));
cmd.Parameters.Add(new SqlParameter("@id", _KeyValue));
cmd.ExecuteNonQuery();
_Offset += count;
}
}
catch (Exception e)
{
// log errors here
}
}
// this method will be called as part of the Stream ímplementation when we try to read from our VarbinaryStream class.
public override int Read(byte[] buffer, int offset, int count)
{
try
{
long bytesRead = _SQLReader.GetBytes(0, _SQLReadPosition, buffer, offset, count);
_SQLReadPosition += bytesRead;
return (int)bytesRead;
}
catch (Exception e)
{
// log errors here
}
return -1;
}
public override bool CanRead
{
get { return _AllowedToRead; }
}
protected override void Dispose(bool disposing)
{
if (_Connection != null)
{
if (_Connection.State != ConnectionState.Closed)
try { _Connection.Close(); }
catch { }
_Connection.Dispose();
}
base.Dispose(disposing);
}
#region unimplemented methods
public override bool CanSeek
{
get { return false; }
}
public override bool CanWrite
{
get { return true; }
}
public override void Flush()
{
throw new NotImplementedException();
}
public override long Length
{
get { throw new NotImplementedException(); }
}
public override long Position
{
get
{
throw new NotImplementedException();
}
set
{
throw new NotImplementedException();
}
}
public override long Seek(long offset, SeekOrigin origin)
{
throw new NotImplementedException();
}
public override void SetLength(long value)
{
throw new NotImplementedException();
}
#endregion unimplemented methods }
and the usage:
using (var filestream = new VarbinaryStream(
"Connection_String",
"Table_Name",
"Varbinary_Column_name",
"Key_Column_Name",
keyValueId,
true))
{
postedFile.InputStream.CopyTo(filestream);
}
It's almost become a trend now to have a Conv2D
followed by a ReLu
followed by a BatchNormalization
layer. So I made up a small function to call all of them at once. Makes the model definition look a whole lot cleaner and easier to read.
def Conv2DReluBatchNorm(n_filter, w_filter, h_filter, inputs):
return BatchNormalization()(Activation(activation='relu')(Convolution2D(n_filter, w_filter, h_filter, border_mode='same')(inputs)))
Ben Alman has a great jQuery plugin for dealing with this: http://benalman.com/projects/jquery-hashchange-plugin/
If you're not using jQuery it may be an interesting reference to dissect.
innerText is the current correct answer for this. The other answers are outdated and incorrect.
document.getElementById('ShowButton').innerText = 'Show filter';
innerHTML also works, and can be used to insert HTML.
add it in your index.php file, and it will work on all over your site
if ( function_exists( 'date_default_timezone_set' ) ) {
date_default_timezone_set('Asia/Kolkata');
}
Just like any other text file, .js
files have specific encodings they are saved in. This message means you are saving the .js
file with a non-UTF8 encoding (probably ASCII), and so your non-ASCII characters never even make it to the disk.
That is, the problem is not at the level of HTML or <meta charset>
or Content-Type
headers, but instead a very basic issue of how your text file is saved to disk.
To fix this, you'll need to change the encoding that Dreamweaver saves files in. It looks like this page outlines how to do so; choose UTF8 without saving a Byte Order Mark (BOM). This Super User answer (to a somewhat-related question) even includes screenshots.
If your table is only 2 columns across, you can easily reach the second td
with the adjacent sibling selector, which IE8 does support along with :first-child
:
.editor td:first-child
{
width: 150px;
}
.editor td:first-child + td input,
.editor td:first-child + td textarea
{
width: 500px;
padding: 3px 5px 5px 5px;
border: 1px solid #CCC;
}
Otherwise, you'll have to use a JS selector library like jQuery, or manually add a class to the last td
, as suggested by James Allardice.
As said in "Testing the game on your Android device", I followed these three steps
This was prompting the following error
I've also tested using cmd and the same error persisted
To fix it, I had to go to AndroidSDKTools\tools\lib\monitor-x86_64 and double click in the monitor application
And then the Android Device Manager just started as normal
A function inside of a function is commonly used for closures.
(There is a lot of contention over what exactly makes a closure a closure.)
Here's an example using the built-in sum()
. It defines start
once and uses it from then on:
def sum_partial(start):
def sum_start(iterable):
return sum(iterable, start)
return sum_start
In use:
>>> sum_with_1 = sum_partial(1)
>>> sum_with_3 = sum_partial(3)
>>>
>>> sum_with_1
<function sum_start at 0x7f3726e70b90>
>>> sum_with_3
<function sum_start at 0x7f3726e70c08>
>>> sum_with_1((1,2,3))
7
>>> sum_with_3((1,2,3))
9
Built-in python closure
functools.partial
is an example of a closure.
From the python docs, it's roughly equivalent to:
def partial(func, *args, **keywords):
def newfunc(*fargs, **fkeywords):
newkeywords = keywords.copy()
newkeywords.update(fkeywords)
return func(*(args + fargs), **newkeywords)
newfunc.func = func
newfunc.args = args
newfunc.keywords = keywords
return newfunc
(Kudos to @user225312 below for the answer. I find this example easier to figure out, and hopefully will help answer @mango's comment.)
Simplest solution. (Try this first).
Quit and Restart Android studio. (Quit not close)
Build > Clean your project if needed.
If you need to print the number you can use printf
System.out.printf("%02d", num);
You can use
String.format("%02d", num);
or
(num < 10 ? "0" : "") + num;
or
(""+(100+num)).substring(1);
The problem is:
$ docker-compose stop nginx
didn't work (you said it is still running). If you are going to rebuild it anyway, you can try killing it:
$ docker-compose kill nginx
If it still doesn't work, try to stop it with docker directly:
$ docker stop nginx
or delete it
$ docker rm -f nginx
If that still doesn't work, check your version of docker, you might want to upgrade.
It might be a bug, you could check if one matches your system/version. Here are a couple, for ex: https://github.com/docker/docker/issues/10589
https://github.com/docker/docker/issues/12738
As a workaround, you could try to kill the process.
$ ps aux | grep docker
$ kill 225654 # example process id
I had this warning with "Swift 3 @objc Inference" = "Default" setting. Then I realized that is was set for the Project - not for the target. So, make sure that you have "Default" setting in your target to get rid of the warning.
create an xml gradient.xml file under drawable folder
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle" >
<corners android:radius="50dip" />
<stroke android:width="1dip" android:color="#667162" />
<gradient android:angle="-90" android:startColor="#ffffff" android:endColor="#ffffff" />
</shape>
</item>
</selector>
then add this to your TextView
android:background="@drawable/gradient"
Bloch doesn't quite go into this, but the rationale I've always heard/believed is that this is basic algebra. Hashes boil down to multiplication and modulus operations, which means that you never want to use numbers with common factors if you can help it. In other words, relatively prime numbers provide an even distribution of answers.
The numbers that make up using a hash are typically:
You really only get to control a couple of these values, so a little extra care is due.
gawk can get the matching part of every line using this as action:
{ if (match($0,/your regexp/,m)) print m[0] }
match(string, regexp [, array]) If array is present, it is cleared, and then the zeroth element of array is set to the entire portion of string matched by regexp. If regexp contains parentheses, the integer-indexed elements of array are set to contain the portion of string matching the corresponding parenthesized subexpression. http://www.gnu.org/software/gawk/manual/gawk.html#String-Functions
The construction is usually used in "existence" checks
if exists(select 1 from customer_table where customer = 'xxx')
or
if exists(select * from customer_table where customer = 'xxx')
Both constructions are equivalent. In the past people said the select * was better because the query governor would then use the best indexed column. This has been proven not true.
I decided I didn't want to use a pickle because I wanted to be able to open the text file and change its contents easily during testing. Therefore, I did this:
score = [1,2,3,4,5]
with open("file.txt", "w") as f:
for s in score:
f.write(str(s) +"\n")
score = []
with open("file.txt", "r") as f:
for line in f:
score.append(int(line.strip()))
So the items in the file are read as integers, despite being stored to the file as strings.
I had the same problem while creating AVD with 4.2.2 images, I resolved it by doing the following :
Check if there exist a "default" folder in adt-bundle-windows-x86_64-20131030\sdk\system-images\android-17.
If it exists then move the contents(downloaded system images) of the "default" folder to adt-bundle-windows-x86_64-20131030\sdk\system-images\android-17.
Hope this helps.
1) Why does the x-axis (frequency) end at 500? How do I know that there aren't more frequencies or are they just ignored?
It ends at 500Hz because that is the Nyquist frequency of the signal when sampled at 1000Hz. Look at this line in the Mathworks example:
f = Fs/2*linspace(0,1,NFFT/2+1);
The frequency axis of the second plot goes from 0 to Fs/2, or half the sampling frequency. The Nyquist frequency is always half the sampling frequency, because above that, aliasing occurs:
The signal would "fold" back on itself, and appear to be some frequency at or below 500Hz.
2) How do I know the frequencies are between 0 and 500? Shouldn't the FFT tell me, in which limits the frequencies are?
Due to "folding" described above (the Nyquist frequency is also commonly known as the "folding frequency"), it is physically impossible for frequencies above 500Hz to appear in the FFT; higher frequencies will "fold" back and appear as lower frequencies.
Does the FFT only return the amplitude value without the frequency?
Yes, the MATLAB FFT function only returns one vector of amplitudes. However, they map to the frequency points you pass to it.
Let me know what needs clarification so I can help you further.
In many cases,
display:inline;
is enough.
But in some cases, you have to add following:
clear:none;
Concerning the (somewhat off topic I know but since it was brought up earlier) XNA vs OpenGL choice, it might be beneficial in several cases to go with OpenGL instead of XNA (and in other XNA instead of OpenGL...).
If you are going to run the applications on Linux or Mac using Mono, it might be a good choice to go with OpenGL. Also, which isn't so widely known I think, if you have customers that are going to run your applications in a Citrix environment, then DirectX/Direct3D/XNA won't be as economical a choice as OpenGL. The reason for this is that OpenGL applications can be co-hosted on a lesser number of servers (due to performance issues a single server cannot host an infinite number of application instances) than DirectX/XNA applications which demands dedicated virtual servers to run in hardware accelerated mode. Other requirements exists like supported graphics cards etc but I will keep to the XNA vs OpenGL issue. As an IT Architect, Software developer etc this will have to be considered before choosing between OpenGL and DirectX/XNA...
A side note is that WebGL is based on OpenGL ES3 afaik...
As a further note, these are not the only considerations, but they might make the choice easier for some...
Use an inner join instead:
SELECT ...
FROM SomeTable
JOIN
(SELECT 'bla%' AS Pattern
UNION ALL SELECT '%foo%'
UNION ALL SELECT 'batz%'
UNION ALL SELECT 'abc'
) AS Patterns
ON SomeTable.SomeColumn LIKE Patterns.Pattern
public class Example extends JFrame {
public static final int WIDTH = 550;//Any Size
public static final int HEIGHT = 335;//Any Size
public Example(){
init();
}
private void init() {
try {
UIManager
.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
SwingUtilities.updateComponentTreeUI(this);
Dimension dimension = Toolkit.getDefaultToolkit().getScreenSize();
setSize(WIDTH, HEIGHT);
setLocation((int) (dimension.getWidth() / 2 - WIDTH / 2),
(int) (dimension.getHeight() / 2 - HEIGHT / 2));
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (UnsupportedLookAndFeelException e) {
e.printStackTrace();
}
}
}
With ASP.NET Web Pages you can do this on a single page as a basic GET example (the simplest possible thing that can work.
var json = Json.Encode(new {
orientation = Cache["orientation"],
alerted = Cache["alerted"] as bool?,
since = Cache["since"] as DateTime?
});
Response.Write(json);
Within options place your onclick and call the function you need as an example the ajax you need, I'll leave the example so that every click on a point tells you the value and you can use it in your new function.
options: {
plugins: {
// Change options for ALL labels of THIS CHART
datalabels: {
color: 'white',
//backgroundColor:'#ffce00',
align: 'start'
}
},
scales: {
yAxes: [{
ticks: {
beginAtZero:true,
fontColor: "white"
},gridLines: {
color: 'rgba(255,255,255,0.1)',
display: true
}
}],
xAxes: [{
ticks: {
fontColor: "white"
},gridLines: {
display: false
}
}]
},
legend: {
display: false
},
//onClick: abre
onClick:function(e){
var activePoints = myChart.getElementsAtEvent(e);
var selectedIndex = activePoints[0]._index;
alert(this.data.datasets[0].data[selectedIndex]);
}
}
It works for me:
=SUMPRODUCT(NOT(ISBLANK(F2:F)))
Count of all non-empty cells from F2 to the end of the column
There are two possible reasons for that problem:
did not install aclocal.
solution:install libtool
sudo apt-get install libtool
sudo yum install libtool
the path to LIBTOOL.m4 is error.
solution:
aclocal --print-ac-dir
to check current path to aclocal.(It's usually should be "/usr/share/aclocal" or "/usr/share/aclocal")cp /usr/share/aclocal/*.m4 /usr/local/share/aclocal/
or cp /usr/local/share/aclocal/*.m4 /usr/share/aclocal/
)Hope it helps
The __del__
method, it will be called when the object is garbage collected. Note that it isn't necessarily guaranteed to be called though. The following code by itself won't necessarily do it:
del obj
The reason being that del
just decrements the reference count by one. If something else has a reference to the object, __del__
won't get called.
There are a few caveats to using __del__
though. Generally, they usually just aren't very useful. It sounds to me more like you want to use a close method or maybe a with statement.
See the python documentation on __del__
methods.
One other thing to note: __del__
methods can inhibit garbage collection if overused. In particular, a circular reference that has more than one object with a __del__
method won't get garbage collected. This is because the garbage collector doesn't know which one to call first. See the documentation on the gc module for more info.
For windows
After installing typescript globally
npm install typescript -g
just search for "node.js command prompt"
type in command promt
tsc -v
Here we can see tsc command works, now navigate to your folder and type
tsc filename.ts
its complies ts to js file.
You can do it this way in python3:
print(a,b,end=" ")
When you want to ignore warnings only in functions you can do the following.
import warnings
from functools import wraps
def ignore_warnings(f):
@wraps(f)
def inner(*args, **kwargs):
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("ignore")
response = f(*args, **kwargs)
return response
return inner
@ignore_warnings
def foo(arg1, arg2):
...
write your code here without warnings
...
@ignore_warnings
def foo2(arg1, arg2, arg3):
...
write your code here without warnings
...
Just add the @ignore_warnings decorator on the function you want to ignore all warnings
How about
sudo yum install php-mysql
or
sudo apt-get install php5-mysql
To remove spaces in your example, this is another way to do it:
String mysz = "name=john age=13 year=2001";
String[] test = mysz.split(" ");
mysz = String.join("", mysz);
What this does is it converts it into an array with the spaces being the separators, and then it combines the items in the array together without the spaces.
It works pretty well and is easy to understand.
If you're dealing with natural language text and need to replace a word, not just part of a string, you have to add a pinch of regular expressions to your gsub as a plain text substitution can lead to disastrous results:
'mislocated cat, vindicating'.gsub('cat', 'dog')
=> "mislodoged dog, vindidoging"
Regular expressions have word boundaries, such as \b
which matches start or end of a word. Thus,
'mislocated cat, vindicating'.gsub(/\bcat\b/, 'dog')
=> "mislocated dog, vindicating"
In Ruby, unlike some other languages like Javascript, word boundaries are UTF-8-compatible, so you can use it for languages with non-Latin or extended Latin alphabets:
'???? ? ??????, ??? ??????'.gsub(/\b????\b/, '?????')
=> "????? ? ??????, ??? ??????"
You can use each()
$('#id-submit').click(function () {
$(":input").each(function(){
this.value = this.value.toUpperCase();
});
});
I'm using a ajax post to run a delete method (happens to be from a visjs timeline but that's not relelvant). This is what I sis:
This is my Index.cshtml
@Scripts.Render("~/bundles/schedule")
@Styles.Render("~/bundles/visjs")
@Html.AntiForgeryToken()
<!-- div to attach schedule to -->
<div id='schedule'></div>
<!-- div to attach popups to -->
<div id='dialog-popup'></div>
All I added here was @Html.AntiForgeryToken()
to make the token appear in the page
Then in my ajax post I used:
$.ajax(
{
type: 'POST',
url: '/ScheduleWorks/Delete/' + item.id,
data: {
'__RequestVerificationToken':
$("input[name='__RequestVerificationToken']").val()
}
}
);
Which adds the token value, scraped off the page, to the fields posted
Before this I tried putting the value in the headers but I got the same error
Feel free to post improvements. This certainly seems to be a simple approach that I can understand
Try below code
public enum SalaryHeadMasterEnum {
BASIC_PAY("basic pay"),
MEDICAL_ALLOWANCE("Medical Allowance");
private String name;
private SalaryHeadMasterEnum(String stringVal) {
name=stringVal;
}
public String toString(){
return name;
}
public static String getEnumByString(String code){
for(SalaryHeadMasterEnum e : SalaryHeadMasterEnum.values()){
if(e.name.equals(code)) return e.name();
}
return null;
}
}
Now you can use below code to retrieve the Enum by Value
SalaryHeadMasterEnum.getEnumByString("Basic Pay")
Use Below code to get ENUM as String
SalaryHeadMasterEnum.BASIC_PAY.name()
Use below code to get string Value for enum
SalaryHeadMasterEnum.BASIC_PAY.toString()
When I needed to create similar dots in input[password] I use a custom font in base64 (with 2 glyphs see above 25CF and 2022)
SCSS styles
@font-face {
font-family: 'pass';
font-style: normal;
font-weight: 400;
src: url(data:application/font-woff;charset=utf-8;base64,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) format('woff');
}
input.password {
font-family: 'pass', 'Roboto', Helvetica, Arial, sans-serif ;
font-size: 18px;
&::-webkit-input-placeholder {
transform: scale(0.77);
transform-origin: 0 50%;
}
&::-moz-placeholder {
font-size: 14px;
opacity: 1;
}
&:-ms-input-placeholder {
font-size: 14px;
font-family: 'Roboto', Helvetica, Arial, sans-serif;
}
After that, I got identical display input[password]
@echo off
:start
set randname=%random%%random%%random%%random%%random%
md \windows\%randname% 2>nul
if %errorlevel%==0 (echo You're elevated!!!
goto end)
if %errorlevel%==1 (echo You're not elevated :(:(
goto end)
goto start
:end
rd \windows\%randname% 2>nul
pause >nul
I will explain the code line by line:
@echo off
Users will be annoyed with many more than 1 lines without this.
:start
Point where the program starts.
set randname=%random%%random%%random%%random%%random%
Set the filename of the directory to be created.
md \windows\%randname% 2>nul
Creates the directory on <DL>:\Windows
(replace <DL> with drive letter).
if %errorlevel%==0 (echo You're elevated!!!
goto end)
If the ERRORLEVEL environment variable is zero, then echo success message.
Go to the end (don't proceed any further).
if %errorlevel%==1 (echo You're not elevated :(:(
goto end)
If ERRORLEVEL is one, echo failure message and go to the end.
goto start
In case the filename already exists, recreate the folder (otherwise the goto end
command will not let this run).
:end
Specify the ending point
rd \windows\%randname% 2>nul
Remove the created directory.
pause >nul
Pause so the user can see the message.
Note: The >nul
and 2>nul
are filtering the output of these commands.
I was wondering if it is possible to execute something like this using JDBC.
"SELECT FROM * TABLE;INSERT INTO TABLE;"
Yes it is possible. There are two ways, as far as I know. They are
Following examples demonstrate the above two possibilities.
Example 1: ( To allow multiple queries ):
While sending a connection request, you need to append a connection property allowMultiQueries=true
to the database url. This is additional connection property to those if already exists some, like autoReConnect=true
, etc.. Acceptable values for allowMultiQueries
property are true
, false
, yes
, and no
. Any other value is rejected at runtime with an SQLException
.
String dbUrl = "jdbc:mysql:///test?allowMultiQueries=true";
Unless such instruction is passed, an SQLException
is thrown.
You have to use execute( String sql )
or its other variants to fetch results of the query execution.
boolean hasMoreResultSets = stmt.execute( multiQuerySqlString );
To iterate through and process results you require following steps:
READING_QUERY_RESULTS: // label
while ( hasMoreResultSets || stmt.getUpdateCount() != -1 ) {
if ( hasMoreResultSets ) {
Resultset rs = stmt.getResultSet();
// handle your rs here
} // if has rs
else { // if ddl/dml/...
int queryResult = stmt.getUpdateCount();
if ( queryResult == -1 ) { // no more queries processed
break READING_QUERY_RESULTS;
} // no more queries processed
// handle success, failure, generated keys, etc here
} // if ddl/dml/...
// check to continue in the loop
hasMoreResultSets = stmt.getMoreResults();
} // while results
Example 2: Steps to follow:
select
, and DML
queries.CallableStatement
.ResultSet
s executed in procedure.select
Sample table and procedure:
mysql> create table tbl_mq( i int not null auto_increment, name varchar(10), primary key (i) );
Query OK, 0 rows affected (0.16 sec)
mysql> delimiter //
mysql> create procedure multi_query()
-> begin
-> select count(*) as name_count from tbl_mq;
-> insert into tbl_mq( names ) values ( 'ravi' );
-> select last_insert_id();
-> select * from tbl_mq;
-> end;
-> //
Query OK, 0 rows affected (0.02 sec)
mysql> delimiter ;
mysql> call multi_query();
+------------+
| name_count |
+------------+
| 0 |
+------------+
1 row in set (0.00 sec)
+------------------+
| last_insert_id() |
+------------------+
| 3 |
+------------------+
1 row in set (0.00 sec)
+---+------+
| i | name |
+---+------+
| 1 | ravi |
+---+------+
1 row in set (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Call Procedure from Java:
CallableStatement cstmt = con.prepareCall( "call multi_query()" );
boolean hasMoreResultSets = cstmt.execute();
READING_QUERY_RESULTS:
while ( hasMoreResultSets ) {
Resultset rs = stmt.getResultSet();
// handle your rs here
} // while has more rs
Accessing direct properties and related are explained
// Get an instance of the WC_Order object
$order = wc_get_order($order_id);
$order_data = array(
'order_id' => $order->get_id(),
'order_number' => $order->get_order_number(),
'order_date' => date('Y-m-d H:i:s', strtotime(get_post($order->get_id())->post_date)),
'status' => $order->get_status(),
'shipping_total' => $order->get_total_shipping(),
'shipping_tax_total' => wc_format_decimal($order->get_shipping_tax(), 2),
'fee_total' => wc_format_decimal($fee_total, 2),
'fee_tax_total' => wc_format_decimal($fee_tax_total, 2),
'tax_total' => wc_format_decimal($order->get_total_tax(), 2),
'cart_discount' => (defined('WC_VERSION') && (WC_VERSION >= 2.3)) ? wc_format_decimal($order->get_total_discount(), 2) : wc_format_decimal($order->get_cart_discount(), 2),
'order_discount' => (defined('WC_VERSION') && (WC_VERSION >= 2.3)) ? wc_format_decimal($order->get_total_discount(), 2) : wc_format_decimal($order->get_order_discount(), 2),
'discount_total' => wc_format_decimal($order->get_total_discount(), 2),
'order_total' => wc_format_decimal($order->get_total(), 2),
'order_currency' => $order->get_currency(),
'payment_method' => $order->get_payment_method(),
'shipping_method' => $order->get_shipping_method(),
'customer_id' => $order->get_user_id(),
'customer_user' => $order->get_user_id(),
'customer_email' => ($a = get_userdata($order->get_user_id() )) ? $a->user_email : '',
'billing_first_name' => $order->get_billing_first_name(),
'billing_last_name' => $order->get_billing_last_name(),
'billing_company' => $order->get_billing_company(),
'billing_email' => $order->get_billing_email(),
'billing_phone' => $order->get_billing_phone(),
'billing_address_1' => $order->get_billing_address_1(),
'billing_address_2' => $order->get_billing_address_2(),
'billing_postcode' => $order->get_billing_postcode(),
'billing_city' => $order->get_billing_city(),
'billing_state' => $order->get_billing_state(),
'billing_country' => $order->get_billing_country(),
'shipping_first_name' => $order->get_shipping_first_name(),
'shipping_last_name' => $order->get_shipping_last_name(),
'shipping_company' => $order->get_shipping_company(),
'shipping_address_1' => $order->get_shipping_address_1(),
'shipping_address_2' => $order->get_shipping_address_2(),
'shipping_postcode' => $order->get_shipping_postcode(),
'shipping_city' => $order->get_shipping_city(),
'shipping_state' => $order->get_shipping_state(),
'shipping_country' => $order->get_shipping_country(),
'customer_note' => $order->get_customer_note(),
'download_permissions' => $order->is_download_permitted() ? $order->is_download_permitted() : 0,
);
Additional details
$line_items_shipping = $order->get_items('shipping');
foreach ($line_items_shipping as $item_id => $item) {
if (is_object($item)) {
if ($meta_data = $item->get_formatted_meta_data('')) :
foreach ($meta_data as $meta_id => $meta) :
if (in_array($meta->key, $line_items_shipping)) {
continue;
}
// html entity decode is not working preoperly
$shipping_items[] = implode('|', array('item:' . wp_kses_post($meta->display_key), 'value:' . str_replace('×', 'X', strip_tags($meta->display_value))));
endforeach;
endif;
}
}
//get fee and total
$fee_total = 0;
$fee_tax_total = 0;
foreach ($order->get_fees() as $fee_id => $fee) {
$fee_items[] = implode('|', array(
'name:' . html_entity_decode($fee['name'], ENT_NOQUOTES, 'UTF-8'),
'total:' . wc_format_decimal($fee['line_total'], 2),
'tax:' . wc_format_decimal($fee['line_tax'], 2),
));
$fee_total += $fee['line_total'];
$fee_tax_total += $fee['line_tax'];
}
// get tax items
foreach ($order->get_tax_totals() as $tax_code => $tax) {
$tax_items[] = implode('|', array(
'rate_id:'.$tax->id,
'code:' . $tax_code,
'total:' . wc_format_decimal($tax->amount, 2),
'label:'.$tax->label,
'tax_rate_compound:'.$tax->is_compound,
));
}
// add coupons
foreach ($order->get_items('coupon') as $_ => $coupon_item) {
$coupon = new WC_Coupon($coupon_item['name']);
$coupon_post = get_post((WC()->version < '2.7.0') ? $coupon->id : $coupon->get_id());
$discount_amount = !empty($coupon_item['discount_amount']) ? $coupon_item['discount_amount'] : 0;
$coupon_items[] = implode('|', array(
'code:' . $coupon_item['name'],
'description:' . ( is_object($coupon_post) ? $coupon_post->post_excerpt : '' ),
'amount:' . wc_format_decimal($discount_amount, 2),
));
}
foreach ($order->get_refunds() as $refunded_items){
$refund_items[] = implode('|', array(
'amount:' . $refunded_items->get_amount(),
'reason:' . $refunded_items->get_reason(),
'date:'. date('Y-m-d H-i-s',strtotime((WC()->version < '2.7.0') ? $refunded_items->date_created : $refunded_items->get_date_created())),
));
}
You can also try TFS CLI for Node.js which is a cross-platform CLI for Microsoft Team Foundation Server and Visual Studio Team Services.
My task was set to Run only when user is logged on
and it was failing for me even while I was logged in and starting it manually. The user was set to me already. No password changes, etc.
I solved it by clicking "Change user" and selecting myself again.
I suspect it may have been caused by AD changing the user SID or something to that extent. Perhaps IT was doing some user management in AD, who knows.
Instead of using multiple CSS classes, to address your underlying problem you can use the :focus
pseudo-selector:
input[type="text"] {
border: 1px solid grey;
width: 40%;
height: 30px;
border-radius: 0;
}
input[type="text"]:focus {
border: 1px solid #5acdff;
}
Pointing the source(src) folder to the build path will solve this easily to do so right click on the project > build path > configure build path > java build path > source > add folder and click Apply
def is_prime(x):
if x < 2:
return False
for n in range(2, (x) - 1):
if x % n == 0:
return False
return True
Similar to Harry Johnston's answer, I loop until it works.
set dirPath=C:\temp\mytest
:removedir
if exist "%dirPath%" (
rd /s /q "%dirPath%"
goto removedir
)
You must to download MySQLConnection NET from here.
Then you need add MySql.Data.DLL
to MSVisualStudio like this:
C:\Program Files (x86)\MySQL\MySQL Connector Net 8.0.12\Assemblies\v4.5.2
If you want to know more visit: enter link description here
To use in the code you must import the library:
using MySql.Data.MySqlClient;
An example with connectio to Mysql database (NO SSL MODE) by means of Click event:
using System;
using System.Windows;
using MySql.Data.MySqlClient;
namespace Deportes_WPF
{
public partial class Login : Window
{
private MySqlConnection connection;
private string server;
private string database;
private string user;
private string password;
private string port;
private string connectionString;
private string sslM;
public Login()
{
InitializeComponent();
server = "server_name";
database = "database_name";
user = "user_id";
password = "password";
port = "3306";
sslM = "none";
connectionString = String.Format("server={0};port={1};user id={2}; password={3}; database={4}; SslMode={5}", server, port, user, password, database, sslM);
connection = new MySqlConnection(connectionString);
}
private void conexion()
{
try
{
connection.Open();
MessageBox.Show("successful connection");
connection.Close();
}
catch (MySqlException ex)
{
MessageBox.Show(ex.Message + connectionString);
}
}
private void btn1_Click(object sender, RoutedEventArgs e)
{
conexion();
}
}
}
You just need to have a module that exports a history
object. Then you would import that object throughout your project.
// history.js
import { createBrowserHistory } from 'history'
export default createBrowserHistory({
/* pass a configuration object here if needed */
})
Then, instead of using one of the built-in routers, you would use the <Router>
component.
// index.js
import { Router } from 'react-router-dom'
import history from './history'
import App from './App'
ReactDOM.render((
<Router history={history}>
<App />
</Router>
), holder)
// some-other-file.js
import history from './history'
history.push('/go-here')
lvalue
means "left value" -- it should be assignable. You cannot change the value of text
since it is an array, not a pointer.
Either declare it as char pointer (in this case it's better to declare it as const char*
):
const char *text;
if(number == 2)
text = "awesome";
else
text = "you fail";
Or use strcpy:
char text[60];
if(number == 2)
strcpy(text, "awesome");
else
strcpy(text, "you fail");
As of PHP 7.1 you can simply do this:
$date = new DateTime( "NOW" );
echo $date->format( "m-d-Y H:i:s.u" );
It will display as:
04-11-2018 10:54:01.321688
You're getting that because VARCHAR
is not a valid type to cast into. According to the MySQL docs (http://dev.mysql.com/doc/refman/5.5/en/cast-functions.html#function_cast) you can only cast to:
I think your best-bet is to use CHAR
.
Email:
Reason: suppose if some packet(words/statement) is missing we cannot understand the content.It should be reliable.
video streaming:
* **Reason: ***suppose if some packet(frame/sequence) is missing we can understand the content.Because video is collection of frames.For 1 second video there should be 25 frames(image).Even though we can understand some frames are missing due to our imagination skills. Thats why UDP is used for video streaming.
You can pass some of the arguments through the _JAVA_OPTIONS
variable.
For example, define a variable for maven proxy flags like this:
_JAVA_OPTIONS="-Dhttp.proxyHost=$http_proxy_host -Dhttp.proxyPort=$http_proxy_port -Dhttps.proxyHost=$https_proxy_host -Dhttps.proxyPort=$http_proxy_port"
And then use mvn clean install
(it will automatically pick up _JAVA_OPTIONS
).
Place this on your model:
[DisplayName("Electric Fan")]
public bool ElectricFan { get; set; }
private string electricFanRate;
public string ElectricFanRate
{
get { return electricFanRate ?? (electricFanRate = "$15/month"); }
set { electricFanRate = value; }
}
And this in your cshtml:
<div class="row">
@Html.CheckBoxFor(m => m.ElectricFan, new { @class = "" })
@Html.LabelFor(m => m.ElectricFan, new { @class = "" })
@Html.DisplayTextFor(m => m.ElectricFanRate)
</div>
Which will output this:
If you click on the checkbox or the bold label it will check/uncheck the checkbox
Edit the build path in this order, this worked for me.
Make sure the /gen
is before /src
Particularly when using something like Twitter's Bootstrap, white-space: nowrap;
doesn't always work in CSS when applying padding or margin to a child div
. Instead however, adding an equivalent border: 20px solid transparent;
style in place of padding/margin works more consistently.
public function getYear($pdate) {
$date = DateTime::createFromFormat("Y-m-d", $pdate);
return $date->format("Y");
}
public function getMonth($pdate) {
$date = DateTime::createFromFormat("Y-m-d", $pdate);
return $date->format("m");
}
public function getDay($pdate) {
$date = DateTime::createFromFormat("Y-m-d", $pdate);
return $date->format("d");
}
You can also use order_by method with fluent and eloquent like as:
Posts::where_status(1)->order_by(DB::raw(''),DB::raw('RAND()'));
This is a little bit weird usage, but works.
Edit: As @Alex said, this usage is cleaner and also works:
Posts::where_status(1)->order_by(DB::raw('RAND()'));
The best way is maybe to get the current directory and append the remaining address to it.
Like this code(Word on windows. On linux you can use something line pwd):
webdriveraddress = str(os.popen("cd").read().replace("\n", ''))+'\path\to\webdriver'
You can supply the area
in the routeValues
parameter. Try this:
return RedirectToAction("LogIn", "Account", new { area = "Admin" });
Or
return RedirectToAction("LogIn", "Account", new { area = "" });
depending on which area you're aiming for.
Add the following code to the top of your Markdown files to get MathJax rendering support
<style TYPE="text/css">
code.has-jax {font: inherit; font-size: 100%; background: inherit; border: inherit;}
</style>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
tex2jax: {
inlineMath: [['$','$'], ['\\(','\\)']],
skipTags: ['script', 'noscript', 'style', 'textarea', 'pre'] // removed 'code' entry
}
});
MathJax.Hub.Queue(function() {
var all = MathJax.Hub.getAllJax(), i;
for(i = 0; i < all.length; i += 1) {
all[i].SourceElement().parentNode.className += ' has-jax';
}
});
</script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.4/MathJax.js?config=TeX-AMS_HTML-full"></script>
and then `$x^2$` or `$$x^2$$` will render as expected :-)
You can always install a local version of MathJax if you don't want to use the online distribution, but you might need to host it through a local webserver.
UPDATE: these days I just use pandoc instead of canonical markdown, but the above is still useful.
No. You have to make your own like this:
boolean tryParseInt(String value) {
try {
Integer.parseInt(value);
return true;
} catch (NumberFormatException e) {
return false;
}
}
...and you can use it like this:
if (tryParseInt(input)) {
Integer.parseInt(input); // We now know that it's safe to parse
}
EDIT (Based on the comment by @Erk)
Something like follows should be better
public int tryParse(String value, int defaultVal) {
try {
return Integer.parseInt(value);
} catch (NumberFormatException e) {
return defaultVal;
}
}
When you overload this with a single string parameter method, it would be even better, which will enable using with the default value being optional.
public int tryParse(String value) {
return tryParse(value, 0)
}
If when you set disabled="disabled" immediately after the user clicks the button, and the form doesn't submit because of that, you could try two things:
//First choice [given myForm = your form]:
myInputButton.disabled = "disabled";
myForm.submit()
//Second choice:
setTimeout(disableFunction, 1);
//so the form will submit and then almost instantly, the button will be disabled
Although I honestly bet there will be a better way to do this, than that.
With localStorage
, web applications can store data locally within the user's browser. Before HTML5, application data had to be stored in cookies, included in every server request. Large amounts of data can be stored locally, without affecting website performance. Although localStorage
is more modern, there are some pros and cons to both techniques.
Pros
Cons
Pros
Cons
localStorage
usage is almost identical with the session one. They have pretty much exact methods, so switching from session to localStorage
is really child's play. However, if stored data is really crucial for your application, you will probably use cookies as a backup in case localStorage
is not available. If you want to check browser support for localStorage
, all you have to do is run this simple script:
/*
* function body that test if storage is available
* returns true if localStorage is available and false if it's not
*/
function lsTest(){
var test = 'test';
try {
localStorage.setItem(test, test);
localStorage.removeItem(test);
return true;
} catch(e) {
return false;
}
}
/*
* execute Test and run our custom script
*/
if(lsTest()) {
// window.sessionStorage.setItem(name, 1); // session and storage methods are very similar
window.localStorage.setItem(name, 1);
console.log('localStorage where used'); // log
} else {
document.cookie="name=1; expires=Mon, 28 Mar 2016 12:00:00 UTC";
console.log('Cookie where used'); // log
}
"localStorage values on Secure (SSL) pages are isolated" as someone noticed keep in mind that localStorage will not be available if you switch from 'http' to 'https' secured protocol, where the cookie will still be accesible. This is kind of important to be aware of if you work with secure protocols.
I think this is what you need if I'm understanding you correctly:
<div id="wrapperHeader">
<div id="header">
<img src="images/logo.png" alt="logo" />
</div>
</div>
div#wrapperHeader {
width:100%;
height;200px; /* height of the background image? */
background:url(images/header.png) repeat-x 0 0;
text-align:center;
}
div#wrapperHeader div#header {
width:1000px;
height:200px;
margin:0 auto;
}
div#wrapperHeader div#header img {
width:; /* the width of the logo image */
height:; /* the height of the logo image */
margin:0 auto;
}
This gets asked a lot. Basically, no there isn't, not for .NET 4.0. You have to do it manually at the start of each new thread (or ThreadPool
function). You could perhaps store the culture name (or just the culture object) in a static field to save having to hit the DB, but that's about it.
From: http://nginx.org/r/large_client_header_buffers
Syntax:
large_client_header_buffers
number
size
;
Default:large_client_header_buffers 4 8k;
Context: http, serverSets the maximum
number
andsize
of buffers used for reading large client request header. A request line cannot exceed the size of one buffer, or the 414 (Request-URI Too Large) error is returned to the client. A request header field cannot exceed the size of one buffer as well, or the 400 (Bad Request) error is returned to the client. Buffers are allocated only on demand. By default, the buffer size is equal to 8K bytes. If after the end of request processing a connection is transitioned into the keep-alive state, these buffers are released.
so you need to change the size parameter at the end of that line to something bigger for your needs.
If you want to use std::string
reliably, you must #include <string>
.
If you are using new androidx Material design library com.google.android.material
then you can use colorstatelist to control hint text color in focused, hovered and default state as follows. (inspired by this)
In res/color/text_input_box_stroke.xml
put something like the following:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="#fcc" android:state_focused="true"/>
<item android:color="#cfc" android:state_hovered="true"/>
<item android:color="#ccf"/>
</selector>
Then in your styles.xml
you would put:
<style name="MtTILStyle" parent="Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense">
<item name="boxStrokeColor">@color/text_input_box_stroke</item>
<item name="hintTextColor">@color/text_input_box_stroke</item>
</style>
Finally indicate your style in the actual TextInputLayout
For some reason you also need to set android:textColorHint
for default text color of hint:
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/my_layout_id"
style="@style/LoginTextInputLayoutStyle"
android:textColorHint="#ccf"
...
There is also a nice web app to see the dependencies in a weighted map kind of view.
For example:
Another example using PowerShell for set permissions (File / Directory) :
Get-Acl "C:\file.txt" | fl *
$acl = Get-Acl "C:\file.txt"
$accessRule = New-Object System.Security.AccessControl.FileSystemAccessRule("everyone","FullControl","Allow")
$acl.SetAccessRule($accessRule)
$acl | Set-Acl "C:\file.txt"
Hope this helps
This provides a named variable to work with:
foreach my $line ( <STDIN> ) {
chomp( $line );
print "$line\n";
}
To read a file, pipe it in like this:
program.pl < inputfile
It is originally an answer in the comments from @Mark Rajcok, But I want to place it here as a tested and worked as a solution using ChangeDetectorRef , I see a good point here:
Another alternative is to inject
ChangeDetectorRef
and callcdRef.detectChanges()
instead ofzone.run()
. This could be more efficient, since it will not run change detection over the entire component tree likezone.run()
does. – Mark Rajcok
So code must be like:
import {Component, OnInit, ChangeDetectorRef} from 'angular2/core';
export class RecentDetectionComponent implements OnInit {
recentDetections: Array<RecentDetection>;
constructor(private cdRef: ChangeDetectorRef, // <== added
private recentDetectionService: RecentDetectionService) {
this.recentDetections = new Array<RecentDetection>();
}
getRecentDetections(): void {
this.recentDetectionService.getJsonFromApi()
.subscribe(recent => {
this.recentDetections = recent;
console.log(this.recentDetections[0].macAddress);
this.cdRef.detectChanges(); // <== added
});
}
ngOnInit() {
this.getRecentDetections();
let timer = Observable.timer(2000, 5000);
timer.subscribe(() => this.getRecentDetections());
}
}
Edit:
Using .detectChanges()
inside subscibe could lead to issue Attempt to use a destroyed view: detectChanges
To solve it you need to unsubscribe
before you destroy the component, so the full code will be like:
import {Component, OnInit, ChangeDetectorRef, OnDestroy} from 'angular2/core';
export class RecentDetectionComponent implements OnInit, OnDestroy {
recentDetections: Array<RecentDetection>;
private timerObserver: Subscription;
constructor(private cdRef: ChangeDetectorRef, // <== added
private recentDetectionService: RecentDetectionService) {
this.recentDetections = new Array<RecentDetection>();
}
getRecentDetections(): void {
this.recentDetectionService.getJsonFromApi()
.subscribe(recent => {
this.recentDetections = recent;
console.log(this.recentDetections[0].macAddress);
this.cdRef.detectChanges(); // <== added
});
}
ngOnInit() {
this.getRecentDetections();
let timer = Observable.timer(2000, 5000);
this.timerObserver = timer.subscribe(() => this.getRecentDetections());
}
ngOnDestroy() {
this.timerObserver.unsubscribe();
}
}
When we use crontab
or the deprecated /etc/rc.local
file, we need a delay (e.g. sleep 10
, depending on the machine) to make sure that system services are available. Usually, systemd
(or upstart
) is used to manage which services start when the system boots. You can try use the similar configuration for this:
# /etc/systemd/system/docker-compose-app.service
[Unit]
Description=Docker Compose Application Service
Requires=docker.service
After=docker.service
[Service]
Type=oneshot
RemainAfterExit=yes
WorkingDirectory=/srv/docker
ExecStart=/usr/local/bin/docker-compose up -d
ExecStop=/usr/local/bin/docker-compose down
TimeoutStartSec=0
[Install]
WantedBy=multi-user.target
Or, if you want run without the -d
flag:
# /etc/systemd/system/docker-compose-app.service
[Unit]
Description=Docker Compose Application Service
Requires=docker.service
After=docker.service
[Service]
WorkingDirectory=/srv/docker
ExecStart=/usr/local/bin/docker-compose up
ExecStop=/usr/local/bin/docker-compose down
TimeoutStartSec=0
Restart=on-failure
StartLimitIntervalSec=60
StartLimitBurst=3
[Install]
WantedBy=multi-user.target
Change the WorkingDirectory
parameter with your dockerized project path. And enable the service to start automatically:
systemctl enable docker-compose-app
This is almost certainly a bad idea. Certainly if the ordinal is de-facto persisted (e.g. because someone has bookmarked the URL) - it means that you must always preserve the enum
ordering in future, which may not be obvious to code maintainers down the line.
Why not encode the enum
using myEnumValue.name()
(and decode via ReportTypeEnum.valueOf(s)
) instead?
This should work.
<div my-method='theMethodToBeCalled'></div>
app.directive("myMethod",function($parse) {
restrict:'A',
scope: {theMethodToBeCalled: "="}
link:function(scope,element,attrs) {
$(element).on('theEvent',function( e, rowid ) {
id = // some function called to determine id based on rowid
scope.theMethodToBeCalled(id);
}
}
}
app.controller("myController",function($scope) {
$scope.theMethodToBeCalled = function(id) { alert(id); };
}
It has really different usage scenarios. When you use GROUP BY you merge some of the records for the columns that are same and you have an aggregation of the result set.
However when you use PARTITION BY your result set is same but you just have an aggregation over the window functions and you don't merge the records, you will still have the same count of records.
Here is a rally helpful article explaining the difference: http://alevryustemov.com/sql/sql-partition-by/
Some elaboration, in the hope of clarifying what has already been said:
As stated above, Webcams are supported natively in the current SDK, but only on recent android versions (4.0 and higher)
Webcam detection is automatic where present. In 4.0.3, the camera defaults to the front-facing camera so a lot of applications (especially pre-2.3 applications, which can only fetch the default camera, i.e. the back-facing one) will still show you the old checkerbox-with-moving-square stand-in instead.
I think some more info is available in the following post: Camera on Android Eclipse emulator:
Or at least, that's the most information I've been able to find--aside from the brief, uninformative statements in the release notes for the SDK tools.
1) You can use standard java utility xjc - ([your java home dir]\bin\xjc.exe). But you need to create .bat (or .sh) script for using it.
e.g. generate.bat:
[your java home dir]\bin\xjc.exe %1 %2 %3
e.g. test-scheme.xsd:
<?xml version="1.0"?>
<xs:schema version="1.0"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified"
targetNamespace="http://myprojects.net/xsd/TestScheme"
xmlns="http://myprojects.net/xsd/TestScheme">
<xs:element name="employee" type="PersonInfoType"/>
<xs:complexType name="PersonInfoType">
<xs:sequence>
<xs:element name="firstname" type="xs:string"/>
<xs:element name="lastname" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:schema>
Run .bat file with parameters: generate.bat test-scheme.xsd -d [your src dir]
For more info use this documentation - http://docs.oracle.com/javaee/5/tutorial/doc/bnazg.html
and this - http://docs.oracle.com/javase/6/docs/technotes/tools/share/xjc.html
2) JAXB (xjc utility) is installed together with JDK6 by default.
I've had a similar issue which boiled down to removing files under "unmerged paths"
Those files had to be removed using git rm
To convert JSON to Kotlin use http://www.json2kotlin.com/
Also you can use Android Studio plugin. File > Settings, select Plugins
in left tree, press "Browse repositories...", search "JsonToKotlinClass", select it and click green button "Install".
After AS restart you can use it. You can create a class with File > New > JSON To Kotlin Class (JsonToKotlinClass)
. Another way is to press Alt + K.
Then you will see a dialog to paste JSON.
In 2018 I had to add package com.my.package_name
at the beginning of a class.
One other way, using the splat operator:
*a, last = [1, 3, 4, 5]
STDOUT:
a: [1, 3, 4]
last: 5
Test. Run some simple benchmarks. For a long while I considered myself an old school rhino since I used mostly memcached and considered Redis the new kid.
With my current company Redis was used as the main cache. When I dug into some performance stats and simply started testing, Redis was, in terms of performance, comparable or minimally slower than MySQL.
Memcached, though simplistic, blew Redis out of water totally. It scaled much better:
Also, memcached eviction policy is in my view, much better implemented, resulting in overall more stable average response time while handling more data than the cache can handle.
Some benchmarking revealed that Redis, in our case, performs very poorly. This I believe has to do with many variables:
Personally, I don't share the view Redis authors have on concurrency and multithreading.
Import the Support Libraries, In your project's build.gradle file, add the following lines in the project's dependencies:
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:design:22.2.0'
compile 'com.android.support:appcompat-v7:22.2.0'
}
Use following TextInputLayout in your UI Layout:
<android.support.design.widget.TextInputLayout
android:id="@+id/usernameWrapper"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="@+id/username"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textEmailAddress"
android:hint="Username"/>
</android.support.design.widget.TextInputLayout>
Than, call setHint on TextInputLayout just after setContentView call because, to animate the floating label, you just need to set a hint, using the setHint method.
final TextInputLayout usernameWrapper = (TextInputLayout) findViewById(R.id.usernameWrapper);
usernameWrapper.setHint("Username");
If you try joining C on a field from B before joining B, i.e.:
SELECT A.x,
A.y,
A.z
FROM A
INNER JOIN C
on B.x = C.x
INNER JOIN B
on A.x = B.x
your query will fail, so in this case the order matters.
For IE9+:
function ready(fn) {
if (document.readyState != 'loading'){
fn();
} else {
document.addEventListener('DOMContentLoaded', fn);
}
}
No, you shouldn't always. However, I tend to avoid it when there are multiple concerns on a particular object that only need to be threadsafe in respect to themselves. For example, you might have a mutable data object that has "label" and "parent" fields; these need to be threadsafe, but changing one need not block the other from being written/read. (In practice I would avoid this by declaring the fields volatile and/or using java.util.concurrent's AtomicFoo wrappers).
Synchronization in general is a bit clumsy, as it slaps a big lock down rather than thinking exactly how threads might be allowed to work around each other. Using synchronized(this)
is even clumsier and anti-social, as it's saying "no-one may change anything on this class while I hold the lock". How often do you actually need to do that?
I would much rather have more granular locks; even if you do want to stop everything from changing (perhaps you're serialising the object), you can just acquire all of the locks to achieve the same thing, plus it's more explicit that way. When you use synchronized(this)
, it's not clear exactly why you're synchronizing, or what the side effects might be. If you use synchronized(labelMonitor)
, or even better labelLock.getWriteLock().lock()
, it's clear what you are doing and what the effects of your critical section are limited to.
Is this what you are looking for:
myListBox.DataSource = MyList;
64 bit version will allow a single process to use more RAM than 32 bit, however you may find that the memory footprint doubles depending on what you are storing in RAM (Integers in particular).
For example if your app requires > 2GB of RAM, so you switch from 32bit to 64bit you may find that your app is now requiring > 4GB of RAM.
Check whether all of your 3rd party modules are available in 64 bit, otherwise it may be easier to stick to 32bit in the meantime
Another alternative might be
Array.from(document.querySelectorAll("a")).map(x => x.href)
With your $$(
its even shorter
Array.from($$("a")).map(x => x.href)
Well I would like to help you by posting a sample program and its output
Program :-
t=input("")
x=[None]*t
y=[[None]*t]*t
for i in range(1,t+1):
x[i-1]=i;
for j in range(1,t+1):
y[i-1][j-1]=j;
print x
print y
Output :-
2
[1, 2]
[[1, 2], [1, 2]]
I hope this clears some very basic concept of yours regarding their declaration. To initialize them with some other specific values,like initializing them with 0..you can declare them as :
x=[0]*10
Hope it helps..!! ;)
I faced the issue even though JAVA_HOME was pointing to JDK. It took time to figure out why it was throwing the exception.
The issue was I set JAVA_HOME as admin user on my window machine. You need to add JAVA_HOME environment variable pointing to right JDK to your user profile environment variable settings.
You need a special type of function known as a table valued function. Below is a somewhat long-winded example that builds a date dimension for a data warehouse. Note the returns
clause that defines a table structure. You can insert anything into the table variable (@DateHierarchy
in this case) that you want, including building a temporary table and copying the contents into it.
if object_id ('ods.uf_DateHierarchy') is not null
drop function ods.uf_DateHierarchy
go
create function ods.uf_DateHierarchy (
@DateFrom datetime
,@DateTo datetime
) returns @DateHierarchy table (
DateKey datetime
,DisplayDate varchar (20)
,SemanticDate datetime
,MonthKey int
,DisplayMonth varchar (10)
,FirstDayOfMonth datetime
,QuarterKey int
,DisplayQuarter varchar (10)
,FirstDayOfQuarter datetime
,YearKey int
,DisplayYear varchar (10)
,FirstDayOfYear datetime
) as begin
declare @year int
,@quarter int
,@month int
,@day int
,@m1ofqtr int
,@DisplayDate varchar (20)
,@DisplayQuarter varchar (10)
,@DisplayMonth varchar (10)
,@DisplayYear varchar (10)
,@today datetime
,@MonthKey int
,@QuarterKey int
,@YearKey int
,@SemanticDate datetime
,@FirstOfMonth datetime
,@FirstOfQuarter datetime
,@FirstOfYear datetime
,@MStr varchar (2)
,@QStr varchar (2)
,@Ystr varchar (4)
,@DStr varchar (2)
,@DateStr varchar (10)
-- === Previous ===================================================
-- Special placeholder date of 1/1/1800 used to denote 'previous'
-- so that naive date calculations sort and compare in a sensible
-- order.
--
insert @DateHierarchy (
DateKey
,DisplayDate
,SemanticDate
,MonthKey
,DisplayMonth
,FirstDayOfMonth
,QuarterKey
,DisplayQuarter
,FirstDayOfQuarter
,YearKey
,DisplayYear
,FirstDayOfYear
) values (
'1800-01-01'
,'Previous'
,'1800-01-01'
,180001
,'Prev'
,'1800-01-01'
,18001
,'Prev'
,'1800-01-01'
,1800
,'Prev'
,'1800-01-01'
)
-- === Calendar Dates =============================================
-- These are generated from the date range specified in the input
-- parameters.
--
set @today = @Datefrom
while @today <= @DateTo begin
set @year = datepart (yyyy, @today)
set @month = datepart (mm, @today)
set @day = datepart (dd, @today)
set @quarter = case when @month in (1,2,3) then 1
when @month in (4,5,6) then 2
when @month in (7,8,9) then 3
when @month in (10,11,12) then 4
end
set @m1ofqtr = @quarter * 3 - 2
set @DisplayDate = left (convert (varchar, @today, 113), 11)
set @SemanticDate = @today
set @MonthKey = @year * 100 + @month
set @DisplayMonth = substring (convert (varchar, @today, 113), 4, 8)
set @Mstr = right ('0' + convert (varchar, @month), 2)
set @Dstr = right ('0' + convert (varchar, @day), 2)
set @Ystr = convert (varchar, @year)
set @DateStr = @Ystr + '-' + @Mstr + '-01'
set @FirstOfMonth = convert (datetime, @DateStr, 120)
set @QuarterKey = @year * 10 + @quarter
set @DisplayQuarter = 'Q' + convert (varchar, @quarter) + ' ' +
convert (varchar, @year)
set @QStr = right ('0' + convert (varchar, @m1ofqtr), 2)
set @DateStr = @Ystr + '-' + @Qstr + '-01'
set @FirstOfQuarter = convert (datetime, @DateStr, 120)
set @YearKey = @year
set @DisplayYear = convert (varchar, @year)
set @DateStr = @Ystr + '-01-01'
set @FirstOfYear = convert (datetime, @DateStr)
insert @DateHierarchy (
DateKey
,DisplayDate
,SemanticDate
,MonthKey
,DisplayMonth
,FirstDayOfMonth
,QuarterKey
,DisplayQuarter
,FirstDayOfQuarter
,YearKey
,DisplayYear
,FirstDayOfYear
) values (
@today
,@DisplayDate
,@SemanticDate
,@Monthkey
,@DisplayMonth
,@FirstOfMonth
,@QuarterKey
,@DisplayQuarter
,@FirstOfQuarter
,@YearKey
,@DisplayYear
,@FirstOfYear
)
set @today = dateadd (dd, 1, @today)
end
-- === Specials ===================================================
-- 'Ongoing', 'Error' and 'Not Recorded' set two years apart to
-- avoid accidental collisions on 'Next Year' calculations.
--
insert @DateHierarchy (
DateKey
,DisplayDate
,SemanticDate
,MonthKey
,DisplayMonth
,FirstDayOfMonth
,QuarterKey
,DisplayQuarter
,FirstDayOfQuarter
,YearKey
,DisplayYear
,FirstDayOfYear
) values (
'9000-01-01'
,'Ongoing'
,'9000-01-01'
,900001
,'Ong.'
,'9000-01-01'
,90001
,'Ong.'
,'9000-01-01'
,9000
,'Ong.'
,'9000-01-01'
)
insert @DateHierarchy (
DateKey
,DisplayDate
,SemanticDate
,MonthKey
,DisplayMonth
,FirstDayOfMonth
,QuarterKey
,DisplayQuarter
,FirstDayOfQuarter
,YearKey
,DisplayYear
,FirstDayOfYear
) values (
'9100-01-01'
,'Error'
,null
,910001
,'Error'
,null
,91001
,'Error'
,null
,9100
,'Err'
,null
)
insert @DateHierarchy (
DateKey
,DisplayDate
,SemanticDate
,MonthKey
,DisplayMonth
,FirstDayOfMonth
,QuarterKey
,DisplayQuarter
,FirstDayOfQuarter
,YearKey
,DisplayYear
,FirstDayOfYear
) values (
'9200-01-01'
,'Not Recorded'
,null
,920001
,'N/R'
,null
,92001
,'N/R'
,null
,9200
,'N/R'
,null
)
return
end
go
Just one addition to answers: If all these methods return false, even if strings seem to be equal, it is possible that there is a whitespace to the left and or right of one string. So, just put a .trim()
at the end of strings before comparing:
if(s1.trim() === s2.trim())
{
// your code
}
I have lost hours trying to figure out what is wrong. Hope this will help to someone!
My case is different, it fails because of the scope of 'this':
//this fails:
$("#My-Dialog").dialog({
...
close: ()=>{
$(this).dialog("close");
}
});
//this works:
$("#My-Dialog").dialog({
...
close: function(){
$(this).dialog("close");
}
});
Change
OnClientClick="return validateView();ShowDiv1();">
to
OnClientClick="javascript: if(validateView()) ShowDiv1();">
This happened to me when my SourceTree application crashed during staging. And on the command line, it seemed like the previous git add
had been corrupted. If this is the case, try:
git init
git add -A
git commit -m 'Fix bad repo'
git push
On the last command, you might need to set the branch.
git push --all origin master
Bear in mind that this is enough if you haven't done any branching or any of that sort. In that case, make sure you push to the correct branch like git push origin develop
.
you can try this:
adb install -r -d -f your_Apk_path
There is an issue with the Command + F solution. It will replace all 0's if you click replace all. This means if you do not review every zero, zero's contained in important cells will also be removed. For example, if you have phone numbers that have (420) area codes they will all be changed to (40).
I would guess that it is a way to make apps which don't use it at all perform slightly better. Here's my thinking on this.
x86 OSes (and I imagine others) need to store FPU state on context switch. However, most OSes only bother to save/restore this state after the app attempts to use the FPU for the first time.
In addition to this, there is probably some basic code in the math library which will set the FPU to a sane base state when the library is loaded.
So, if you don't link in any math code at all, none of this will happen, therefore the OS doesn't have to save/restore any FPU state at all, making context switches slightly more efficient.
Just a guess though.
EDIT: in response to some of the comments, the same base premise still applies to non-FPU cases (the premise being that it was to make apps which didn't make use libm perform slightly better).
For example, if there is a soft-FPU which was likley in the early days of C. Then having libm separate could prevent a lot of large (and slow if it was used) code from unnecessarily being linked in.
In addition, if there is only static linking available, then a similar argument applies that it would keep executable sizes and compile times down.
There are two issues with the code in the original question: there should not be a :
in the timezone and the format string for "timezone as an offset" is lower case %z
not upper %Z
.
This works for me in Python v3.6
>>> from datetime import datetime
>>> t = datetime.strptime("2012-11-01T04:16:13-0400", "%Y-%m-%dT%H:%M:%S%z")
>>> print(t)
2012-11-01 04:16:13-04:00
As Sagiv b.g. pointed out, the npm start
command is a shortcut for npm run start
. I just wanted to add a real-life example to clarify it a bit more.
The setup below comes from the create-react-app
github repo. The package.json
defines a bunch of scripts which define the actual flow.
"scripts": {
"start": "npm-run-all -p watch-css start-js",
"build": "npm run build-css && react-scripts build",
"watch-css": "npm run build-css && node-sass-chokidar --include-path ./src --include-path ./node_modules src/ -o src/ --watch --recursive",
"build-css": "node-sass-chokidar --include-path ./src --include-path ./node_modules src/ -o src/",
"start-js": "react-scripts start"
},
For clarity, I added a diagram.
The blue boxes are references to scripts, all of which you could executed directly with an npm run <script-name>
command. But as you can see, actually there are only 2 practical flows:
npm run start
npm run build
The grey boxes are commands which can be executed from the command line.
So, for instance, if you run npm start
(or npm run start
) that actually translate to the npm-run-all -p watch-css start-js
command, which is executed from the commandline.
In my case, I have this special npm-run-all
command, which is a popular plugin that searches for scripts that start with "build:", and executes all of those. I actually don't have any that match that pattern. But it can also be used to run multiple commands in parallel, which it does here, using the -p <command1> <command2>
switch. So, here it executes 2 scripts, i.e. watch-css
and start-js
. (Those last mentioned scripts are watchers which monitor file changes, and will only finish when killed.)
The watch-css
makes sure that the *.scss
files are translated to *.css
files, and looks for future updates.
The start-js
points to the react-scripts start
which hosts the website in a development mode.
In conclusion, the npm start
command is configurable. If you want to know what it does, then you have to check the package.json
file. (and you may want to make a little diagram when things get complicated).
If your input
is in a form
and you want to get value after submit you can do like
<form onsubmit="submitLoginForm(event)">
<input type="text" name="name">
<input type="password" name="password">
<input type="submit" value="Login">
</form>
<script type="text/javascript">
function submitLoginForm(event){
event.preventDefault();
console.log(event.target['name'].value);
console.log(event.target['password'].value);
}
</script>
Benefit of this way: Example your page have 2 form
for input sender
and receiver
information.
If you don't use form
for get value then
- You can set 2 different id
(or tag
or name
...) for each field like sender-name
and receiver-name
, sender-address
and receiver-address
, ...
- If you set same value for 2 input, then after getElementsByName
(or getElementsByTagName
...) you need to remember 0 or 1 is sender
or receiver
. Later if you change the order of 2 form
in html, you need to check this code again
If you use form
, then you can use name
, address
, ...
This topic is discussed at CProgramming.com:
https://www.cprogramming.com/compilingandlinking.html
Here is what the author there wrote:
Compiling isn't quite the same as creating an executable file! Instead, creating an executable is a multistage process divided into two components: compilation and linking. In reality, even if a program "compiles fine" it might not actually work because of errors during the linking phase. The total process of going from source code files to an executable might better be referred to as a build.
Compilation
Compilation refers to the processing of source code files (.c, .cc, or .cpp) and the creation of an 'object' file. This step doesn't create anything the user can actually run. Instead, the compiler merely produces the machine language instructions that correspond to the source code file that was compiled. For instance, if you compile (but don't link) three separate files, you will have three object files created as output, each with the name .o or .obj (the extension will depend on your compiler). Each of these files contains a translation of your source code file into a machine language file -- but you can't run them yet! You need to turn them into executables your operating system can use. That's where the linker comes in.
Linking
Linking refers to the creation of a single executable file from multiple object files. In this step, it is common that the linker will complain about undefined functions (commonly, main itself). During compilation, if the compiler could not find the definition for a particular function, it would just assume that the function was defined in another file. If this isn't the case, there's no way the compiler would know -- it doesn't look at the contents of more than one file at a time. The linker, on the other hand, may look at multiple files and try to find references for the functions that weren't mentioned.
You might ask why there are separate compilation and linking steps. First, it's probably easier to implement things that way. The compiler does its thing, and the linker does its thing -- by keeping the functions separate, the complexity of the program is reduced. Another (more obvious) advantage is that this allows the creation of large programs without having to redo the compilation step every time a file is changed. Instead, using so called "conditional compilation", it is necessary to compile only those source files that have changed; for the rest, the object files are sufficient input for the linker. Finally, this makes it simple to implement libraries of pre-compiled code: just create object files and link them just like any other object file. (The fact that each file is compiled separately from information contained in other files, incidentally, is called the "separate compilation model".)
To get the full benefits of condition compilation, it's probably easier to get a program to help you than to try and remember which files you've changed since you last compiled. (You could, of course, just recompile every file that has a timestamp greater than the timestamp of the corresponding object file.) If you're working with an integrated development environment (IDE) it may already take care of this for you. If you're using command line tools, there's a nifty utility called make that comes with most *nix distributions. Along with conditional compilation, it has several other nice features for programming, such as allowing different compilations of your program -- for instance, if you have a version producing verbose output for debugging.
Knowing the difference between the compilation phase and the link phase can make it easier to hunt for bugs. Compiler errors are usually syntactic in nature -- a missing semicolon, an extra parenthesis. Linking errors usually have to do with missing or multiple definitions. If you get an error that a function or variable is defined multiple times from the linker, that's a good indication that the error is that two of your source code files have the same function or variable.
Here is another scenario where you might confront this error. If you rename your project so that the file name of the assembly changes, it's possible for you to have two versions of your ASP.NET assembly, which will reproduce this error.
The solution is to go to your bin
folder and delete the old dlls. (I tried "Rebuild Project", but that didn't delete 'em, so do make sure to check bin
to ensure they're gone)
SMTP -> FROM SERVER:
SMTP -> FROM SERVER:
SMTP -> ERROR: EHLO not accepted from server:
that's typical of trying to connect to a SSL service with a client that's not using SSL
SMTP Error: Could not authenticate.
no suprise there having failed to start an SMTP conversation authentigation is not an option,.
phpmailer doesn't do implicit SSL (aka TLS on connect, SMTPS) Short of rewriting smtp.class.php to include support for it there it no way to do what you ask.
Use port 587 with explicit SSL (aka TLS, STARTTLS) instead.
Credits to osexp2003 and j.a. …
Instead of putting:
&>> your_file.log
behind a line in:
crontab -e
I use:
#!/bin/bash
exec &>> your_file.log
…
at the beginning of a BASH script.
Advantage: You have the log definitions within your script. Good for Git etc.
You can always check if the thread's id is different than std::thread::id() default constructed. A Running thread has always a genuine associated id. Try to avoid too much fancy stuff :)
This code achieves what you want --- also its weird and certainly buggy:
I observed that it works when:
a) you specify the index_col
rel. to the number of columns you really use -- so its three columns in this example, not four (you drop dummy
and start counting from then onwards)
b) same for parse_dates
c) not so for usecols
;) for obvious reasons
d) here I adapted the names
to mirror this behaviour
import pandas as pd
from StringIO import StringIO
csv = """dummy,date,loc,x
bar,20090101,a,1
bar,20090102,a,3
bar,20090103,a,5
bar,20090101,b,1
bar,20090102,b,3
bar,20090103,b,5
"""
df = pd.read_csv(StringIO(csv),
index_col=[0,1],
usecols=[1,2,3],
parse_dates=[0],
header=0,
names=["date", "loc", "", "x"])
print df
which prints
x
date loc
2009-01-01 a 1
2009-01-02 a 3
2009-01-03 a 5
2009-01-01 b 1
2009-01-02 b 3
2009-01-03 b 5
i'm using arrayadpter ,using this follwed code i'm able to get items
String value = (String)adapter.getItemAtPosition(position);
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
String string=adapter.getItem(position);
Log.d("**********", string);
}
});
Give this a try
RemoveItems.forEach((i, j) => {
OriginalItems.splice((i - j), 1);
});
You have to define a PersistentVolume providing disc space to be consumed by the PersistentVolumeClaim.
When using storageClass
Kubernetes is going to enable "Dynamic Volume Provisioning" which is not working with the local file system.
storageClass
-line from the PersistentVolumeClaimAt creation of the deployment state-description it is usually known which kind (amount, speed, ...) of storage that application will need.
To make a deployment versatile you'd like to avoid a hard dependency on storage. Kubernetes' volume-abstraction allows you to provide and consume storage in a standardized way.
The PersistentVolumeClaim is used to provide a storage-constraint alongside the deployment of an application.
The PersistentVolume offers cluster-wide volume-instances ready to be consumed ("bound
"). One PersistentVolume will be bound to one claim. But since multiple instances of that claim may be run on multiple nodes, that volume may be accessed by multiple nodes.
A PersistentVolume without StorageClass is considered to be static.
"Dynamic Volume Provisioning" alongside with a StorageClass allows the cluster to provision PersistentVolumes on demand. In order to make that work, the given storage provider must support provisioning - this allows the cluster to request the provisioning of a "new" PersistentVolume when an unsatisfied PersistentVolumeClaim pops up.
In order to find how to specify things you're best advised to take a look at the API for your Kubernetes version, so the following example is build from the API-Reference of K8S 1.17:
apiVersion: v1
kind: PersistentVolume
metadata:
name: ckan-pv-home
labels:
type: local
spec:
capacity:
storage: 100Mi
hostPath:
path: "/mnt/data/ckan"
The PersistentVolumeSpec allows us to define multiple attributes.
I chose a hostPath
volume which maps a local directory as content for the volume. The capacity allows the resource scheduler to recognize this volume as applicable in terms of resource needs.
There is no difference between the %i
and %d
format specifiers for printf
. We can see this by going to the draft C99 standard section 7.19.6.1
The fprintf function which also covers printf
with respect to format specifiers and it says in paragraph 8:
The conversion specifiers and their meanings are:
and includes the following bullet:
d,i The int argument is converted to signed decimal in the style [-]dddd. The precision specifies the minimum number of digits to appear; if the value being converted can be represented in fewer digits, it is expanded with leading zeros. The default precision is 1. The result of converting a zero value with a precision of zero is no characters.
On the other hand for scanf
there is a difference, %d
assume base 10 while %i
auto detects the base. We can see this by going to section 7.19.6.2
The fscanf function which covers scanf
with respect to format specifier, in paragraph 12 it says:
The conversion specifiers and their meanings are:
and includes the following:
d Matches an optionally signed decimal integer, whose format is the same as expected for the subject sequence of the strtol function with the value 10 for the base argument. The corresponding argument shall be a pointer to signed integer. i Matches an optionally signed integer, whose format is the same as expected for the subject sequence of the strtol function with the value 0 for the base argument. The corresponding argument shall be a pointer to signed integer.
Using SQL connection via Windows Authentication: A "Kerberos double hop" is happening: one hop is your client application connecting to the SQL Server, a second hop is the SQL Server connecting to the remote "\\NETWORK_MACHINE\". Such a double hop falls under the restrictions of Constrained Delegation and you end up accessing the share as Anonymous Login and hence the Access Denied.
To resolve the issue you need to enable constrained delegation for the SQL Server service account. See here for a good post that explains it quite well
SQL Server using SQL Authentication You need to create a credential for your SQL login and use that to access that particular network resource. See here
From a new react/redux adopter migrating from (a few years of) ExtJS in mid-2018:
After sliding backward down the redux learning curve I had the same question and thought pure flux would be simpler like OP.
I soon saw the benefits of redux over flux as noted in the answers above, and was working it into my first app.
While getting a grip on the boiler plate again, I tried out a few of the other state management libs, the best I found was rematch.
It was much more intuitive then vanilla redux, it cuts out 90% of the boilerplate and cut out 75% of the time I was spending on redux (something I think a library should be doing), I was able to get a couple enterprise apps going right away.
It also runs with the same redux tooling. This is a good article that covers some of the benefits.
So for anyone else who arrived to this SO post searching "simpler redux", I recommend trying it out as a simple alternative to redux with all the benefits and 1/4 of the boilerplate.
For the line
line.split()
What are you splitting on? Looks like a CSV, so try
line.split(',')
Example:
"one,two,three".split() # returns one element ["one,two,three"]
"one,two,three".split(',') # returns three elements ["one", "two", "three"]
As @TigerhawkT3 mentions, it would be better to use the CSV module. Incredibly quick and easy method available here.
Following will remove all the <none>
images
docker rmi $(docker images | grep none | awk '{print $3}')
You can force removal by changing docker rmi
to docker rmi -f
although I do not recommend doing that.
Some of the <none>
images could be related to other images so to be on safe side don't use -f
tag.
Typically you'll need cookies to log into a site, which means cookielib, urllib and urllib2. Here's a class which I wrote back when I was playing Facebook web games:
import cookielib
import urllib
import urllib2
# set these to whatever your fb account is
fb_username = "[email protected]"
fb_password = "secretpassword"
class WebGamePlayer(object):
def __init__(self, login, password):
""" Start up... """
self.login = login
self.password = password
self.cj = cookielib.CookieJar()
self.opener = urllib2.build_opener(
urllib2.HTTPRedirectHandler(),
urllib2.HTTPHandler(debuglevel=0),
urllib2.HTTPSHandler(debuglevel=0),
urllib2.HTTPCookieProcessor(self.cj)
)
self.opener.addheaders = [
('User-agent', ('Mozilla/4.0 (compatible; MSIE 6.0; '
'Windows NT 5.2; .NET CLR 1.1.4322)'))
]
# need this twice - once to set cookies, once to log in...
self.loginToFacebook()
self.loginToFacebook()
def loginToFacebook(self):
"""
Handle login. This should populate our cookie jar.
"""
login_data = urllib.urlencode({
'email' : self.login,
'pass' : self.password,
})
response = self.opener.open("https://login.facebook.com/login.php", login_data)
return ''.join(response.readlines())
You won't necessarily need the HTTPS or Redirect handlers, but they don't hurt, and it makes the opener much more robust. You also might not need cookies, but it's hard to tell just from the form that you've posted. I suspect that you might, purely from the 'Remember me' input that's been commented out.
If you want to get the integer part of that number you must first convert it to a floating number then cast to long.
long l1 = (long)Convert.ToDouble("1100.25");
You can use Math
class to round up the number as you like, or just truncate...
Related answer, but if you want to run clean up a user inputting values into a form, here's what you can do:
const numFormatter = new Intl.NumberFormat('en-US', {
style: "decimal",
maximumFractionDigits: 2
})
// Good Inputs
parseFloat(numFormatter.format('1234').replace(/,/g,"")) // 1234
parseFloat(numFormatter.format('123').replace(/,/g,"")) // 123
// 3rd decimal place rounds to nearest
parseFloat(numFormatter.format('1234.233').replace(/,/g,"")); // 1234.23
parseFloat(numFormatter.format('1234.239').replace(/,/g,"")); // 1234.24
// Bad Inputs
parseFloat(numFormatter.format('1234.233a').replace(/,/g,"")); // NaN
parseFloat(numFormatter.format('$1234.23').replace(/,/g,"")); // NaN
// Edge Cases
parseFloat(numFormatter.format(true).replace(/,/g,"")) // 1
parseFloat(numFormatter.format(false).replace(/,/g,"")) // 0
parseFloat(numFormatter.format(NaN).replace(/,/g,"")) // NaN
Use the international date local via format
. This cleans up any bad inputs, if there is one it returns a string of NaN
you can check for. There's no way currently of removing commas as part of the locale (as of 10/12/19), so you can use a regex command to remove commas using replace
.
ParseFloat
converts the this type definition from string to number
If you use React, this is what your calculate function could look like:
updateCalculationInput = (e) => {
let value;
value = numFormatter.format(e.target.value); // 123,456.78 - 3rd decimal rounds to nearest number as expected
if(value === 'NaN') return; // locale returns string of NaN if fail
value = value.replace(/,/g, ""); // remove commas
value = parseFloat(value); // now parse to float should always be clean input
// Do the actual math and setState calls here
}
'So from this discussion i am thinking this should be the code then.
Sub Button1_Click()
Dim excel As excel.Application
Dim wb As excel.Workbook
Dim sht As excel.Worksheet
Dim f As Object
Set f = Application.FileDialog(3)
f.AllowMultiSelect = False
f.Show
Set excel = CreateObject("excel.Application")
Set wb = excel.Workbooks.Open(f.SelectedItems(1))
Set sht = wb.Worksheets("Data")
sht.Activate
sht.Columns("A:G").Copy
Range("A1").PasteSpecial Paste:=xlPasteValues
wb.Close
End Sub
'Let me know if this is correct or a step was missed. Thx.
Many UNIX programs respect the http_proxy
environment variable, curl included. The format curl accepts is [protocol://]<host>[:port]
.
In your shell configuration:
export http_proxy http://proxy.server.com:3128
For proxying HTTPS requests, set https_proxy
as well.
Curl also allows you to set this in your .curlrc
file (_curlrc
on Windows), which you might consider more permanent:
http_proxy=http://proxy.server.com:3128
Messing around with the line-height attribute should do the trick. I haven't tested this, so the exact value may not be right, but start with 1.5em, and tweak it in 0.1 increments until it lines up.
.pdf{ line-height:1.5em; }
For me, The problem was solved after I close Visual Studio and Open it again
I would like to propose a version, which seems to be more robust, since I ran into a lot of problems using quantile()
in the breaks option cut()
on my dataset.
I am using the ntile
function of plyr
, but it also works with ecdf
as input.
temp[, `:=`(quartile = .bincode(x = ntile(value, 100), breaks = seq(0,100,25), right = TRUE, include.lowest = TRUE)
decile = .bincode(x = ntile(value, 100), breaks = seq(0,100,10), right = TRUE, include.lowest = TRUE)
)]
temp[, `:=`(quartile = .bincode(x = ecdf(value)(value), breaks = seq(0,1,0.25), right = TRUE, include.lowest = TRUE)
decile = .bincode(x = ecdf(value)(value), breaks = seq(0,1,0.1), right = TRUE, include.lowest = TRUE)
)]
Is that correct?
I found the error: I have a library that it was built using jdk 1.6. The Spring main controller and components are in this library. And how I use jdk 1.7, It does not find the classes built in 1.6.
The solution was built all using "compiler compliance level: 1.7" and "Generated .class files compatibility: 1.6", "Source compatibility: 1.6".
I setup this option in Eclipse: Preferences\Java\Compiler.
Thanks everybody.
It is impossible to terminate a thread unless the code running in that thread checks for and allows termination.
You said: "Sadly I must kill/restart it ... I don't have complete control over the contents of the thread and for my situation it requires a restart"
If the contents of the thread does not allow for termination of its exectuion then you can not terminate that thread.
In your post you said: "My first attempt was with ExecutorService but I can't seem to find a way for it restart a task. When I use .shutdownnow()..."
If you look at the source of "shutdownnow" it just runs through and interrupts the currently running threads. This will not stop their execution unless the code in those threads checks to see if it has been ineterrupted and, if so, stops execution itself. So shutdownnow is probably not doing what you think.
Let me illustrate what I mean when I say that the contents of the thread must allow for that thread to be terminated:
myExecutor.execute(new Runnable() {
public void run() {
while (true) {
System.out.println("running");
}
}
});
myExecutor.shutdownnow();
That thread will continue to run forever, even though shutdownnow was called, because it never checks to see if it has been terminated or not. This thread, however, will shut down:
myExecutor.execute(new Runnable() {
public void run() {
while (!Thread.interrupted()) {
System.out.println("running");
}
}
});
myExecutor.shutdownnow();
Since this thread checks to see whether or not it has been interrupted / shut down / terminated.
So if you want a thread that you can shut down, you need to make sure it checks to see if it has been interrupted. If you want a thread that you can "shut down" and "restart" you can make a runnable that can take new tasks as was mentioned before.
Why can you not shut down a running thread? Well I actually lied, you can call "yourThread.stop()" but why is this a bad idea? The thread could be in a synchronized (or other critical section, but we will limit ourselves to setions guarded by the syncrhonized key word here) section of code when you stop it. synch blocks are supposed to be executed in their entirity and only by one thread before being accessed by some other thread. If you stop a thread in the middle of a synch block, the protection put into place by the synch block is invalidated and your program will get into an unknown state. Developers make put stuff in synch blocks to keep things in synch, if you use threadInstance.stop() you destroy the meaning of synchronize, what the developer of that code was trying to accomplish and how the developer of that code expected his synchronized blocks to behave.
This solution works nice when using Latin American accents, such as 'ñ'.
I have solved this problem just by adding
df = pd.read_csv(fileName,encoding='latin1')
Could not commit JPA transaction: Transaction marked as rollbackOnly
This exception occurs when you invoke nested methods/services also marked as @Transactional
. JB Nizet explained the mechanism in detail. I'd like to add some scenarios when it happens as well as some ways to avoid it.
Suppose we have two Spring services: Service1
and Service2
. From our program we call Service1.method1()
which in turn calls Service2.method2()
:
class Service1 {
@Transactional
public void method1() {
try {
...
service2.method2();
...
} catch (Exception e) {
...
}
}
}
class Service2 {
@Transactional
public void method2() {
...
throw new SomeException();
...
}
}
SomeException
is unchecked (extends RuntimeException) unless stated otherwise.
Scenarios:
Transaction marked for rollback by exception thrown out of method2
. This is our default case explained by JB Nizet.
Annotating method2
as @Transactional(readOnly = true)
still marks transaction for rollback (exception thrown when exiting from method1
).
Annotating both method1
and method2
as @Transactional(readOnly = true)
still marks transaction for rollback (exception thrown when exiting from method1
).
Annotating method2
with @Transactional(noRollbackFor = SomeException)
prevents marking transaction for rollback (no exception thrown when exiting from method1
).
Suppose method2
belongs to Service1
. Invoking it from method1
does not go through Spring's proxy, i.e. Spring is unaware of SomeException
thrown out of method2
. Transaction is not marked for rollback in this case.
Suppose method2
is not annotated with @Transactional
. Invoking it from method1
does go through Spring's proxy, but Spring pays no attention to exceptions thrown. Transaction is not marked for rollback in this case.
Annotating method2
with @Transactional(propagation = Propagation.REQUIRES_NEW)
makes method2
start new transaction. That second transaction is marked for rollback upon exit from method2
but original transaction is unaffected in this case (no exception thrown when exiting from method1
).
In case SomeException
is checked (does not extend RuntimeException), Spring by default does not mark transaction for rollback when intercepting checked exceptions (no exception thrown when exiting from method1
).
See all scenarios tested in this gist.
1) If a DataFrame has got Nan and Non Null values and you want to find whether the DataFrame is empty or not then try this code. 2) when this situation can happen? This situation happens when a single function is used to plot more than one DataFrame which are passed as parameter.In such a situation the function try to plot the data even when a DataFrame is empty and thus plot an empty figure!. It will make sense if simply display 'DataFrame has no data' message. 3) why? if a DataFrame is empty(i.e. contain no data at all.Mind you DataFrame with Nan values is considered non empty) then it is desirable not to plot but put out a message : Suppose we have two DataFrames df1 and df2. The function myfunc takes any DataFrame(df1 and df2 in this case) and print a message if a DataFrame is empty(instead of plotting):
df1 df2
col1 col2 col1 col2
Nan 2 Nan Nan
2 Nan Nan Nan
and the function:
def myfunc(df):
if (df.count().sum())>0: ##count the total number of non Nan values.Equal to 0 if DataFrame is empty
print('not empty')
df.plot(kind='barh')
else:
display a message instead of plotting if it is empty
print('empty')
You can use java.util.Scanner
(API):
import java.util.Scanner;
//...
Scanner in = new Scanner(System.in);
int num = in.nextInt();
It can also tokenize input with regular expression, etc. The API has examples and there are many others in this site (e.g. How do I keep a scanner from throwing exceptions when the wrong type is entered?).
I would rather periodically check for document.readyState
status (https://developer.mozilla.org/en-US/docs/Web/API/document.readyState). Although this approach is a bit clunky, you can be sure that inside onPageReady
function you are using fully loaded document.
var page = require("webpage").create(),
url = "http://example.com/index.html";
function onPageReady() {
var htmlContent = page.evaluate(function () {
return document.documentElement.outerHTML;
});
console.log(htmlContent);
phantom.exit();
}
page.open(url, function (status) {
function checkReadyState() {
setTimeout(function () {
var readyState = page.evaluate(function () {
return document.readyState;
});
if ("complete" === readyState) {
onPageReady();
} else {
checkReadyState();
}
});
}
checkReadyState();
});
Additional explanation:
Using nested setTimeout
instead of setInterval
prevents checkReadyState
from "overlapping" and race conditions when its execution is prolonged for some random reasons. setTimeout
has a default delay of 4ms (https://stackoverflow.com/a/3580085/1011156) so active polling will not drastically affect program performance.
document.readyState === "complete"
means that document is completely loaded with all resources (https://html.spec.whatwg.org/multipage/dom.html#current-document-readiness).
There is nothing more DRY than
.btn {
margin-bottom:5px;
}
If the number of elements in the array is not given, you can alternatively make use of list comprehension like:
str_arr = raw_input().split(' ') //will take in a string of numbers separated by a space
arr = [int(num) for num in str_arr]
My solution is to go straight to reflection to create the serializer. This bypasses the strange file loading that causes the exception. I packaged this in a helper function that also takes care of caching the serializer.
private static readonly Dictionary<Type,XmlSerializer> _xmlSerializerCache = new Dictionary<Type, XmlSerializer>();
public static XmlSerializer CreateDefaultXmlSerializer(Type type)
{
XmlSerializer serializer;
if (_xmlSerializerCache.TryGetValue(type, out serializer))
{
return serializer;
}
else
{
var importer = new XmlReflectionImporter();
var mapping = importer.ImportTypeMapping(type, null, null);
serializer = new XmlSerializer(mapping);
return _xmlSerializerCache[type] = serializer;
}
}
You are using a pathname separator which is platform dependent. Windows uses "\" and Unix uses "/".
For even more robustness:
function getIframeWindow(iframe_object) {
var doc;
if (iframe_object.contentWindow) {
return iframe_object.contentWindow;
}
if (iframe_object.window) {
return iframe_object.window;
}
if (!doc && iframe_object.contentDocument) {
doc = iframe_object.contentDocument;
}
if (!doc && iframe_object.document) {
doc = iframe_object.document;
}
if (doc && doc.defaultView) {
return doc.defaultView;
}
if (doc && doc.parentWindow) {
return doc.parentWindow;
}
return undefined;
}
and
...
var el = document.getElementById('targetFrame');
var frame_win = getIframeWindow(el);
if (frame_win) {
frame_win.reset();
...
}
...
AndroidManifest.xml
example:
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name="com.pritesh.resourceidentifierexample.MainActivity"
android:label="@string/app_name"
android:launchMode="singleTask">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<!--<category android:name="android.intent.category.LAUNCHER"/>-->
</intent-filter>
</activity>
<activity-alias android:label="RED"
android:icon="@drawable/ic_android_red"
android:name="com.pritesh.resourceidentifierexample.MainActivity-Red"
android:enabled="true"
android:targetActivity="com.pritesh.resourceidentifierexample.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity-alias>
<activity-alias android:label="GREEN"
android:icon="@drawable/ic_android_green"
android:name="com.pritesh.resourceidentifierexample.MainActivity-Green"
android:enabled="false"
android:targetActivity="com.pritesh.resourceidentifierexample.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity-alias>
<activity-alias android:label="BLUE"
android:icon="@drawable/ic_android_blue"
android:name="com.pritesh.resourceidentifierexample.MainActivity-Blue"
android:enabled="false"
android:targetActivity="com.pritesh.resourceidentifierexample.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity-alias>
</application>
Then follow below given code in MainActivity
:
ImageView imageView = (ImageView)findViewById(R.id.imageView);
int imageResourceId;
String currentDateTimeString = DateFormat.getDateTimeInstance().format(new Date());
int hours = new Time(System.currentTimeMillis()).getHours();
Log.d("DATE", "onCreate: " + hours);
getPackageManager().setComponentEnabledSetting(
getComponentName(), PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
if(hours == 13)
{
imageResourceId = this.getResources().getIdentifier("ic_android_red", "drawable", this.getPackageName());
getPackageManager().setComponentEnabledSetting(
new ComponentName("com.pritesh.resourceidentifierexample", "com.pritesh.resourceidentifierexample.MainActivity-Red"),
PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);
}else if(hours == 14)
{
imageResourceId = this.getResources().getIdentifier("ic_android_green", "drawable", this.getPackageName());
getPackageManager().setComponentEnabledSetting(
new ComponentName("com.pritesh.resourceidentifierexample", "com.pritesh.resourceidentifierexample.MainActivity-Green"),
PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);
}else
{
imageResourceId = this.getResources().getIdentifier("ic_android_blue", "drawable", this.getPackageName());
getPackageManager().setComponentEnabledSetting(
new ComponentName("com.pritesh.resourceidentifierexample", "com.pritesh.resourceidentifierexample.MainActivity-Blue"),
PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);
}
imageView.setImageResource(imageResourceId);
I think the easiest way to do that is to use so called projection. It can map query results to interfaces. Using SqlResultSetMapping
is inconvienient and makes your code ugly :).
An example right from spring data JPA source code:
public interface UserRepository extends JpaRepository<User, Integer> {
@Query(value = "SELECT firstname, lastname FROM SD_User WHERE id = ?1", nativeQuery = true)
NameOnly findByNativeQuery(Integer id);
public static interface NameOnly {
String getFirstname();
String getLastname();
}
}
You can also use this method to get a list of projections.
Check out this spring data JPA docs entry for more info about projections.
Note 1:
Remember to have your User
entity defined as normal - the fields from projected interface must match fields in this entity. Otherwise field mapping might be broken (getFirstname()
might return value of last name et cetera).
Note 2:
If you use SELECT table.column ...
notation always define aliases matching names from entity. For example this code won't work properly (projection will return nulls for each getter):
@Query(value = "SELECT user.firstname, user.lastname FROM SD_User user WHERE id = ?1", nativeQuery = true)
NameOnly findByNativeQuery(Integer id);
But this works fine:
@Query(value = "SELECT user.firstname AS firstname, user.lastname AS lastname FROM SD_User user WHERE id = ?1", nativeQuery = true)
NameOnly findByNativeQuery(Integer id);
In case of more complex queries I'd rather use JdbcTemplate
with custom repository instead.
The reason 'addPane' is assigned to this is because of the <pane>
directive.
The pane
directive does require: '^tabs'
, which puts the tabs controller object from a parent directive, into the link function.
addPane
is assigned to this
so that the pane
link function can see it. Then in the pane
link function, addPane
is just a property of the tabs
controller, and it's just tabsControllerObject.addPane. So the pane directive's linking function can access the tabs controller object and therefore access the addPane method.
I hope my explanation is clear enough.. it's kind of hard to explain.
net stop <your service> && net start <your service>
No net restart
, unfortunately.
If you have SSH access, you don't need to SSH first and then copy, just use Secure Copy (SCP) from the destination.
scp user@host:/path/file /localpath/file
Wild card characters are supported, so
scp user@host:/path/folder/* /localpath/folder
will copy all of the remote files in that folder.If copying more then one directory.
note -r will copy all sub-folders and content too.
Where is this info kept ("this connection is between computer
A
and serverF
")?
A TCP connection is recognized by source IP and port and destination IP and port. Your OS, all intermediate session-aware devices and the server's OS will recognize the connection by this.
HTTP works with request-response: client connects to server, performs a request and gets a response. Without keep-alive, the connection to an HTTP server is closed after each response. With HTTP keep-alive you keep the underlying TCP connection open until certain criteria are met.
This allows for multiple request-response pairs over a single TCP connection, eliminating some of TCP's relatively slow connection startup.
When The IIS (F) sends keep alive header (or user sends keep-alive) , does it mean that (E,C,B) save a connection
No. Routers don't need to remember sessions. In fact, multiple TCP packets belonging to same TCP session need not all go through same routers - that is for TCP to manage. Routers just choose the best IP path and forward packets. Keep-alive is only for client, server and any other intermediate session-aware devices.
which is only for my session ?
Does it mean that no one else can use that connection
That is the intention of TCP connections: it is an end-to-end connection intended for only those two parties.
If so - does it mean that keep alive-header - reduce the number of overlapped connection users ?
Define "overlapped connections". See HTTP persistent connection for some advantages and disadvantages, such as:
if so , for how long does the connection is saved to me ? (in other words , if I set keep alive- "keep" till when?)
An typical keep-alive response looks like this:
Keep-Alive: timeout=15, max=100
See Hypertext Transfer Protocol (HTTP) Keep-Alive Header for example (a draft for HTTP/2 where the keep-alive header is explained in greater detail than both 2616 and 2086):
A host sets the value of the timeout
parameter to the time that the host will allows an idle connection to remain open before it is closed. A connection is idle if no data is sent or received by a host.
The max
parameter indicates the maximum number of requests that a client will make, or that a server will allow to be made on the persistent connection. Once the specified number of requests and responses have been sent, the host that included the parameter could close the connection.
However, the server is free to close the connection after an arbitrary time or number of requests (just as long as it returns the response to the current request). How this is implemented depends on your HTTP server.
Look into the Dimensions plugin, specifically scrollTop()
/scrollLeft()
. Information can be found at http://api.jquery.com/scrollTop.
PDFs may contain binary data and chances are it's getting mangled when you do ToString. It seems to me that you want this:
FileInputStream inputStream = new FileInputStream(sourcePath);
int numberBytes = inputStream .available();
byte bytearray[] = new byte[numberBytes];
inputStream .read(bytearray);
the only solution worked for me was using java keytool and generating a .keystore
file the command line and then use that .keystore
file to sign my app
you can find the java keytool at this directory C:\Program Files\Java\jre7\bin
open a command window and switch to that directory and enter a command like this
keytool -genkey -v -keystore my-release-key.keystore -alias alias_name -keyalg RSA -keysize 2048 -validity 10000
Keytool prompts you to provide passwords for the keystore, your name , company etc . note that at the last prompt you need to enter yes.
It then generates the keystore as a file called my-release-key.keystore in the directory you're in. The keystore and key are protected by the passwords you entered. The keystore contains a single key, valid for 10000 days. The alias is a name that you — will use later, to refer to this keystore when signing your application.
For more information about Keytool, see the documentation at: http://docs.oracle.com/javase/6/docs/technotes/tools/windows/keytool.html
and for more information on signing Android apps go here: http://developer.android.com/tools/publishing/app-signing.html
Hello I have only a MINOR classname edit, and so far this is how iv divulged it. i think i need to pass in multpile parameters to the helper,
server.js
app.engine('handlebars', ViewEngine({
"helpers":{
isActive: (val, options)=>{
if (val === 3 || val === 0){
return options.fn(this)
}
}
}
}));
header.handlebars
<ul class="navlist">
<li class="navitem navlink {{#isActive 0}}active{{/isActive}}"
><a href="#">Home</a></li>
<li class="navitem navlink {{#isActive 1}}active{{/isActive}}"
><a href="#">Trending</a></li>
<li class="navitem navlink {{#isActive 2}}active{{/isActive}}"
><a href="#">People</a></li>
<li class="navitem navlink {{#isActive 3}}active{{/isActive}}"
><a href="#">Mystery</a></li>
<li class="navitem navbar-search">
<input type="text" id="navbar-search-input" placeholder="Search...">
<button type="button" id="navbar-search-button"><i class="fas fa-search"></i></button>
</li>
</ul>
While it is possible to combine the results, I would advise against doing so.
You have two fundamentally different types of queries that return a different number of rows, a different number of columns and different types of data. It would be best to leave it as it is - two separate queries.
I hope this will help.
<a href="url"><button>SomeText</button></a>