Your stored procedure is designed to accept a single parameter, Arg1List. You can't pass 4 parameters to a procedure that only accepts one.
To make it work, the code that calls your procedure will need to concatenate your parameters into a single string of no more than 3000 characters and pass it in as a single parameter.
Your problem is that, if the user clicks cancel, operationType
is null and thus throws a NullPointerException. I would suggest that you move
if (operationType.equalsIgnoreCase("Q"))
to the beginning of the group of if statements, and then change it to
if(operationType==null||operationType.equalsIgnoreCase("Q")).
This will make the program exit just as if the user had selected the quit option when the cancel button is pushed.
Then, change all the rest of the ifs to else ifs. This way, once the program sees whether or not the input is null, it doesn't try to call anything else on operationType. This has the added benefit of making it more efficient - once the program sees that the input is one of the options, it won't bother checking it against the rest of them.
If I am not mistaken, it will be onunload event.
"Occurs when the application is about to be unloaded." - MSDN
<select name="FakeName" id="Fake-ID" aria-required="true" required> <?php $options=nl2br(file_get_contents("employees.txt")); $options=explode("<br />",$options); foreach ($options as $item_array) { echo "<option value='".$item_array"'>".$item_array"</option>"; } ?> </select>
Use properties file. Here is a good start: http://www.mkyong.com/java/java-properties-file-examples/
Seeing that it appears you are running using the SQL syntax, try with the correct wild card.
SELECT * FROM someTable WHERE (someTable.Field NOT LIKE '%RISK%') AND (someTable.Field NOT LIKE '%Blah%') AND someTable.SomeOtherField <> 4;
The only way to get the iOS dictation is to sign up yourself through Nuance: http://dragonmobile.nuancemobiledeveloper.com/ - it's expensive, because it's the best. Presumably, Apple's contract prevents them from exposing an API.
The built in iOS accessibility features allow immobilized users to access dictation (and other keyboard buttons) through tools like VoiceOver and Assistive Touch. It may not be worth reinventing this if your users might be familiar with these tools.
Just a wild guess: (not much to go on) but I have had similar problems when, for example, I was using the IIS rewrite module on my local machine (and it worked fine), but when I uploaded to a host that did not have that add-on module installed, I would get a 500 error with very little to go on - sounds similar. It drove me crazy trying to find it.
So make sure whatever options/addons that you might have and be using locally in IIS are also installed on the host.
Similarly, make sure you understand everything that is being referenced/used in your web.config - that is likely the problem area.
This happened to me when I registered a new domain name, e.g., "new" for example.com (new.example.com). The name could not be resolved temporarily in my location for a couple of hours, while it could be resolved abroad. So I used a proxy to test the website where I saw net::ERR_HTTP2_PROTOCOL_ERROR
in chrome console for some AJAX posts. Hours later, when the name could be resloved locally, those error just dissappeared.
I think the reason for that error is those AJAX requests were not redirected by my proxy, it just visit a website which had not been resolved by my local DNS resolver.
Global tools can be installed in the default directory or in a specific location. The default directories are:
Linux/macOS ---> $HOME/.dotnet/tools
Windows ---> %USERPROFILE%\.dotnet\tools
If you're trying to run a global tool, check that the PATH environment variable on your machine contains the path where you installed the global tool and that the executable is in that path.
I did as follows:
It worked for me.
Below worked for me.
> 1. npm uninstall @angular-devkit/build-angular
> 2. npm install @angular-devkit/[email protected]
if we use
AVOID: npm audit fix -f
it may create problem, so dont use it.
In your package.json change the devkit builder.
"@angular-devkit/build-angular": "^0.800.1",
to
"@angular-devkit/build-angular": "^0.10.0",
it works for me.
good luck.
You must to upgrade the m2e connector. It's a known bug, but there is a solution:
Into Eclipse click "Help" > "Install new Software..."
Appears a window. In the "Install" window:
2a. Into the input box "Work with", enter next site location and press Enter https://download.eclipse.org/m2e-wtp/releases/1.4/
2b. Appears a lot of information into "Name" input Box. Select all the items
2c. Click "Next" Button.
Finish the installation and restart Eclipse.
A more production-ready way to handle this is to actually ensure that name
is present. Assuming this is a minimal example of a larger project that a group of people are involved with, you don't know how getPerson
will change in the future.
if (!person.name) {
throw new Error("Unexpected error: Missing name");
}
let name1: string = person.name;
Alternatively, you can type name1
as string | undefined
, and handle cases of undefined
further down. However, it's typically better to handle unexpected errors earlier on.
You can also let TypeScript infer the type by omitting the explicit type: let name1 = person.name
This will still prevent name1
from being reassigned as a number, for example.
You have forgotten to mark the getProducts return type as an array. In your getProducts it says that it will return a single product. So change it to this:
public getProducts(): Observable<Product[]> {
return this.http.get<Product[]>(`api/products/v1/`);
}
The answer depends a little bit on the version of conda
that you have installed. For versions of conda >= 4.4, it should be enough to deactivate
the conda environment after the initialization, so add
conda deactivate
right underneath
# <<< conda initialize <<<
got to project file.. gradle/wrapper/gradlewrapper.properties
there you can change the value of distributionurl
to what ever the lastest version is. (Found on docs.gradle.org)
For me it was wrongly injected DBContext in HostedService. I rewrote it according to this:
How should I inject a DbContext instance into an IHostedService?
and all worked fine!
If you're using Lombok on a POJO model, make sure you have these annotations:
@Getter
@Builder
@NoArgsConstructor
@AllArgsConstructor
It could vary, but make sure @Getter
and especially @NoArgsConstructor
.
I like to define a mount
function, it tricks EsLint in the same way useMount
does and I find it more self-explanatory.
const mount = () => {
console.log('mounted')
// ...
const unmount = () => {
console.log('unmounted')
// ...
}
return unmount
}
useEffect(mount, [])
You can add some code like this
ListView.builder{
shrinkWrap: true,
}
This happened to me just today, only after I added a .png image with 'hide extension' ticked in the get info. (Right click image) Ths image was added to the file directory of my Xcode project.
When unticked box and re-adding the the .png image to directory of Xcode, I then Cleaned and Built and worked fine after that, a very strange bug if you ask me.
I just tested on Laravel Framework 5.7.19 and the following steps work:
Make sure your .babelrc file is in the root folder of your application, and add the following code:
{
"plugins": ["@babel/plugin-proposal-class-properties"]
}
Run npm install --save-dev @babel/plugin-proposal-class-properties
.
Run npm run watch
.
A Record lets you create a new type from a Union. The values in the Union are used as attributes of the new type.
For example, say I have a Union like this:
type CatNames = "miffy" | "boris" | "mordred";
Now I want to create an object that contains information about all the cats, I can create a new type using the values in the CatName Union as keys.
type CatList = Record<CatNames, {age: number}>
If I want to satisfy this CatList, I must create an object like this:
const cats:CatList = {
miffy: { age:99 },
boris: { age:16 },
mordred: { age:600 }
}
You get very strong type safety:
I used this recently to create a Status component. The component would receive a status prop, and then render an icon. I've simplified the code quite a lot here for illustrative purposes
I had a union like this:
type Statuses = "failed" | "complete";
I used this to create an object like this:
const icons: Record<
Statuses,
{ iconType: IconTypes; iconColor: IconColors }
> = {
failed: {
iconType: "warning",
iconColor: "red"
},
complete: {
iconType: "check",
iconColor: "green"
};
I could then render by destructuring an element from the object into props, like so:
const Status = ({status}) => <Icon {...icons[status]} />
If the Statuses union is later extended or changed, I know my Status component will fail to compile and I'll get an error that I can fix immediately. This allows me to add additional error states to the app.
Note that the actual app had dozens of error states that were referenced in multiple places, so this type safety was extremely useful.
The for loop iterates over the elements of the array, not its indexes. Suppose you have a list ar = [2, 4, 6]:
When you iterate over it with for i in ar:
the values of i will be 2, 4 and 6. So, when you try to access ar[i]
for the first value, it might work (as the last position of the list is 2, a[2] equals 6), but not for the latter values, as a[4] does not exist.
If you intend to use indexes anyhow, try using for index, value in enumerate(ar):
, then theSum = theSum + ar[index]
should work just fine.
I had the same issue while adding Flask. So used one of the above command.
pip install --ignore-installed --upgrade --user flask
Got only a small warning and it worked!!
Installing collected packages: click, MarkupSafe, Jinja2, itsdangerous, Werkzeug, flask WARNING: The script flask.exe is installed in 'C:\Users\Admin\AppData\Roaming\Python\Python38\Scripts' which is not on PATH. Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location. Successfully installed Jinja2-2.11.2 MarkupSafe-1.1.1 Werkzeug-1.0.1 click-7.1.2 flask-1.1.2 itsdangerous-1.1.0 WARNING: You are using pip version 20.1.1; however, version 20.2 is available. You should consider upgrading via the 'c:\python38\python.exe -m pip install --upgrade pip' command.
you can scroll any part of content in two ways ...
most of the time i use List view directly when ever there is a keybord intraction in that specific screen so that the content dont get overlap by the keyboard and more over scrolls to top ....
this trick will be helpful many a times....
In Colum widget Text alignment will be centred automatically, so use crossAxisAlignment: CrossAxisAlignment.start
to align start.
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text(""),
Text(""),
]);
The following solution helped me as I was also getting the same warning. In your project level gradle file, try to change the gradle version in classpath
classpath "com.android.tools.build:gradle:3.6.0" to
classpath "com.android.tools.build:gradle:4.0.1"
I think when importing modules you have imported another package, Go to modules and remove al of them. After that import modules from the package of the project
If you are using BaseFragment for your app then you can add onBackPressedDispatcher to your base fragment.
//Make a BaseFragment for all your fragments
abstract class BaseFragment : Fragment() {
private lateinit var callback: OnBackPressedCallback
/**
* SetBackButtonDispatcher in OnCreate
*/
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setBackButtonDispatcher()
}
/**
* Adding BackButtonDispatcher callback to activity
*/
private fun setBackButtonDispatcher() {
callback = object : OnBackPressedCallback(true) {
override fun handleOnBackPressed() {
onBackPressed()
}
}
requireActivity().onBackPressedDispatcher.addCallback(this, callback)
}
/**
* Override this method into your fragment to handleBackButton
*/
open fun onBackPressed() {
}
}
Override onBackPressed() in your fragment by extending basefragment
//How to use this into your fragment
class MyFragment() : BaseFragment(){
private lateinit var mView: View
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
mView = inflater.inflate(R.layout.fragment_my, container, false)
return mView.rootView
}
override fun onBackPressed() {
//Write your code here on back pressed.
}
}
Browser have cross domain security at client side which verify that server allowed to fetch data from your domain. If Access-Control-Allow-Origin
not available in response header, browser disallow to use response in your JavaScript code and throw exception at network level. You need to configure cors
at your server side.
You can fetch request using mode: 'cors'
. In this situation browser will not throw execption for cross domain, but browser will not give response in your javascript function.
So in both condition you need to configure cors
in your server or you need to use custom proxy server.
Create images
folder in root level of your project.
Drop your image in this folder, it should look like
Go to your pubspec.yaml
file, add assets
header and pay close attention to all the spaces.
flutter:
uses-material-design: true
# add this
assets:
- images/profile.jpg
Tap on Packages get
at the top right corner of the IDE.
Now you can use your image anywhere using
Image.asset("images/profile.jpg")
You can also customize the card theme globally with ThemeData.cardTheme
:
MaterialApp(
title: 'savvy',
theme: ThemeData(
cardTheme: CardTheme(
shape: RoundedRectangleBorder(
borderRadius: const BorderRadius.all(
Radius.circular(8.0),
),
),
),
// ...
I was able to set the default value or whatever value using the following:
Template:
<mat-form-field>
<mat-label>Holiday Destination</mat-label>
<mat-select [(ngModel)]="selectedCity" formControlName="cityHoliday">
<mat-option [value]="nyc">New York</mat-option>
<mat-option [value]="london">London</mat-option>
<mat-option [value]="india">Delhi</mat-option>
<mat-option [value]="Oslo">Oslo</mat-option>
</mat-select>
</mat-form-field>
Component:
export class WhateverComponent implements OnInit{
selectedCity: string;
}
ngOnInit() {
this.selectedCity = 'london';
}
}
child: Align(
alignment: Alignment.center,
child: Text(
'Text here',
textAlign: TextAlign.center,
),
),
This produced the best result for me.
I don't think you need to add { useNewUrlParser: true }
.
It's up to you if you want to use the new URL parser already. Eventually the warning will go away when MongoDB switches to their new URL parser.
As specified in Connection String URI Format, you don't need to set the port number.
Just adding { useNewUrlParser: true }
is enough.
You are having issue with newly MySQL version that came with "caching_sha2_password" plugin, follow the below command to get it resolved.
DROP USER 'your_user_name'@'%';
CREATE USER 'your_user_name'@'%' IDENTIFIED WITH mysql_native_password BY 'your_user_password';
GRANT ALL PRIVILEGES ON your_db_name.* TO 'your_user_name'@'%' identified by 'your_user_password';
Or you can just use the below command to keep your privileges as it is:
ALTER USER your_user_name IDENTIFIED WITH mysql_native_password;
I had this issue when running ng test
, so to fix it, I added to my xyz.component.spec.ts
file:
import { MatTableModule } from '@angular/material';
And added it to imports
section in TestBed.configureTestingModule({})
:
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [ ReactiveFormsModule, HttpClientModule, RouterTestingModule, MatTableModule ],
declarations: [ BookComponent ],
schemas: [ CUSTOM_ELEMENTS_SCHEMA ]
})
.compileComponents();
}));
In your TS Definition file, e.g. typings.d.ts`, you can add this line:
declare module "*.json" {
const value: any;
export default value;
}
Then add this in your typescript(.ts) file:-
import * as data from './colors.json';
const word = (<any>data).name;
Here is what worked for me (Angular 7):
First import HttpClientModule in your app.module.ts if you didn't:
import { HttpClientModule } from '@angular/common/http';
...
imports: [
HttpClientModule
],
Then change your service
@Injectable()
export class FooService {
to
@Injectable({
providedIn: 'root'
})
export class FooService {
Hope it helps.
Edit:
providedIn
Determines which injectors will provide the injectable, by either associating it with an @NgModule or other InjectorType, or by specifying that this injectable should be provided in one of the following injectors:
'root' : The application-level injector in most apps.
'platform' : A special singleton platform injector shared by all applications on the page.
'any' : Provides a unique instance in every module (including lazy modules) that injects the token.
Be careful platform
is available only since Angular 9 (https://blog.angular.io/version-9-of-angular-now-available-project-ivy-has-arrived-23c97b63cfa3)
Read more about Injectable here: https://angular.io/api/core/Injectable
It is because TypeScript 2.7 includes a strict class checking where all the properties should be initialized in the constructor. A workaround is to add
the !
as a postfix to the variable name:
makes!: any[];
getDerivedStateFromProps is used whenever you want to update state before render and update with the condition of props
GetDerivedStateFromPropd updating the stats value with the help of props value
You must use some of the C # conversion systems:
string to boolean: True to true
string str = "True";
bool mybool = System.Convert.ToBoolean(str);
boolean to string: true to True
bool mybool = true;
string str = System.Convert.ToString(mybool);
//or
string str = mybool.ToString();
bool.Parse
expects one parameter which in this case is str, even .
Convert.ToBoolean
expects one parameter.
bool.TryParse
expects two parameters, one entry (str) and one out (result).
If TryParse
is true, then the conversion was correct, otherwise an error occurred
string str = "True";
bool MyBool = bool.Parse(str);
//Or
string str = "True";
if(bool.TryParse(str, out bool result))
{
//Correct conversion
}
else
{
//Incorrect, an error has occurred
}
I ran into this problem when I simply mistyped my jdbc url in application.properties. Hope this helps someone: before:
spring.datasource.url=jdbc://localhost:3306/test
after:
spring.datasource.url=jdbc:mysql://localhost:3306/test
You can use Future.delayed
to run your code after some time. e.g.:
Future.delayed(const Duration(milliseconds: 500), () {
// Here you can write your code
setState(() {
// Here you can write your code for open new view
});
});
In setState function, you can write a code which is related to app UI e.g. refresh screen data, change label text, etc.
try to change the compileSdkVersion to:
compileSdkVersion 28
fontVariationSettings added in api level 28. Api doc here
First suggested solution works, we just need to change
selBox.value = val;
To
selBox.innerText = val;
i.e.,
HTML:
<button (click)="copyMessage('This goes to Clipboard')" value="click to copy" >Copy this</button>
.ts file:
copyMessage(val: string){
const selBox = document.createElement('textarea');
selBox.style.position = 'fixed';
selBox.style.left = '0';
selBox.style.top = '0';
selBox.style.opacity = '0';
selBox.innerText = val;
document.body.appendChild(selBox);
selBox.focus();
selBox.select();
document.execCommand('copy');
document.body.removeChild(selBox);
}
This worked for me.
application.properties
, used jdbc-url instead of url:
datasource.apidb.jdbc-url=jdbc:mysql://localhost:3306/apidb?useSSL=false
datasource.apidb.username=root
datasource.apidb.password=123
datasource.apidb.driver-class-name=com.mysql.jdbc.Driver
Configuration class:
@Configuration
@EnableJpaRepositories(
entityManagerFactoryRef = "fooEntityManagerFactory",
basePackages = {"com.buddhi.multidatasource.foo.repository"}
)
public class FooDataSourceConfig {
@Bean(name = "fooDataSource")
@ConfigurationProperties(prefix = "datasource.foo")
public HikariDataSource dataSource() {
return DataSourceBuilder.create().type(HikariDataSource.class).build();
}
@Bean(name = "fooEntityManagerFactory")
public LocalContainerEntityManagerFactoryBean fooEntityManagerFactory(
EntityManagerFactoryBuilder builder,
@Qualifier("fooDataSource") DataSource dataSource
) {
return builder
.dataSource(dataSource)
.packages("com.buddhi.multidatasource.foo.model")
.persistenceUnit("fooDb")
.build();
}
}
This error might be also for plugin versions. You can fix it in the .POM file like the followings:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
After clicking on Properties of any installer(.exe) which block your application to install (Windows Defender SmartScreen prevented an unrecognized app ) for that issue i found one solution
- Right click on installer(.exe)
- Select properties option.
- Click on checkbox to check Unblock at the bottom of Properties.
This solution work for Heroku CLI (heroku-x64) installer(.exe)
Solved mine on macOS by clicking on
If not download flutter from this link
This error can also come up when you're not referring to your CSS file properly.
For example, if your link tag is
<link rel="stylesheet" href="styles.css">
but your CSS file is named style.css
(without the second s) then there is a good chance that you will see this error.
With typescript 2.8, you can use the new built-in Exclude
type. The 2.8 release notes actually mention this in the section "Predefined conditional types":
Note: The Exclude type is a proper implementation of the Diff type suggested here. [...] We did not include the Omit type because it is trivially written as
Pick<T, Exclude<keyof T, K>>
.
Applying this to your example, type XY could be defined as:
type XY = Pick<XYZ, Exclude<keyof XYZ, "z">>
The following works for me in Firefox and Chrome. In Firefox it even works from file:///
models/course.js
export function Course() {
this.id = '';
this.name = '';
};
models/student.js
import { Course } from './course.js';
export function Student() {
this.firstName = '';
this.lastName = '';
this.course = new Course();
};
index.html
<div id="myDiv">
</div>
<script type="module">
import { Student } from './models/student.js';
window.onload = function () {
var x = new Student();
x.course.id = 1;
document.getElementById('myDiv').innerHTML = x.course.id;
}
</script>
When you want a flex item to occupy an entire row, set it to width: 100%
or flex-basis: 100%
, and enable wrap
on the container.
The item now consumes all available space. Siblings are forced on to other rows.
.parent {
display: flex;
flex-wrap: wrap;
}
#range, #text {
flex: 1;
}
.error {
flex: 0 0 100%; /* flex-grow, flex-shrink, flex-basis */
border: 1px dashed black;
}
_x000D_
<div class="parent">
<input type="range" id="range">
<input type="text" id="text">
<label class="error">Error message (takes full width)</label>
</div>
_x000D_
More info: The initial value of the flex-wrap
property is nowrap
, which means that all items will line up in a row. MDN
The new django.urls.path()
function allows a simpler, more readable URL routing syntax. For example, this example from previous Django releases:
url(r'^articles/(?P<year>[0-9]{4})/$', views.year_archive)
could be written as:
path('articles/<int:year>/', views.year_archive)
The django.conf.urls.url()
function from previous versions is now available as django.urls.re_path()
. The old location remains for backwards compatibility, without an imminent deprecation. The old django.conf.urls.include()
function is now importable from django.urls
so you can use:
from django.urls import include, path, re_path
in the URLconfs. For further reading django doc
Use .map without return in simple way. Also start using let and const instead of var because let and const is more recommended
const rockets = [_x000D_
{ country:'Russia', launches:32 },_x000D_
{ country:'US', launches:23 },_x000D_
{ country:'China', launches:16 },_x000D_
{ country:'Europe(ESA)', launches:7 },_x000D_
{ country:'India', launches:4 },_x000D_
{ country:'Japan', launches:3 }_x000D_
];_x000D_
_x000D_
const launchOptimistic = rockets.map(elem => (_x000D_
{_x000D_
country: elem.country,_x000D_
launches: elem.launches+10_x000D_
} _x000D_
));_x000D_
_x000D_
console.log(launchOptimistic);
_x000D_
Hi This issue is resolved for me.
setting ->general -> Requesttimeout in ms = 0
interface MyProps {
...
}
interface MyState {
value: string
}
class App extends React.Component<MyProps, MyState> {
...
}
// Or with hooks, something like
const App = ({}: MyProps) => {
const [value, setValue] = useState<string>('');
...
};
type
's are fine too like in @nitzan-tomer's answer, as long as you're consistent.
The first answer is great only for those people who know kotlin, for those who still using java here I translate the first answer
public Notification getNotification() {
String channel;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
channel = createChannel();
else {
channel = "";
}
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this, channel).setSmallIcon(android.R.drawable.ic_menu_mylocation).setContentTitle("snap map fake location");
Notification notification = mBuilder
.setPriority(PRIORITY_LOW)
.setCategory(Notification.CATEGORY_SERVICE)
.build();
return notification;
}
@NonNull
@TargetApi(26)
private synchronized String createChannel() {
NotificationManager mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
String name = "snap map fake location ";
int importance = NotificationManager.IMPORTANCE_LOW;
NotificationChannel mChannel = new NotificationChannel("snap map channel", name, importance);
mChannel.enableLights(true);
mChannel.setLightColor(Color.BLUE);
if (mNotificationManager != null) {
mNotificationManager.createNotificationChannel(mChannel);
} else {
stopSelf();
}
return "snap map channel";
}
For android, P don't forget to include this permission
<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
You can use (keyup)
or (change)
events, see example below:
in HTML:
<input (keyup)="change($event)">
Or
<input (change)="change($event)">
in Component:
change(event) {console.log(event.target.value);}
This issue seems to like the following.
How to resolve repository certificate error in Gradle build
Below steps may help:
1. Add certificate to keystore-
Import some certifications into Android Studio JDK cacerts from Android Studio’s cacerts.
Android Studio’s cacerts may be located in
{your-home-directory}/.AndroidStudio3.0/system/tasks/cacerts
I used the following import command.
$ keytool -importkeystore -v -srckeystore {src cacerts} -destkeystore {dest cacerts}
2. Add modified cacert path to gradle.properties-
systemProp.javax.net.ssl.trustStore={your-android-studio-directory}\\jre\\jre\\lib\\security\\cacerts
systemProp.javax.net.ssl.trustStorePassword=changeit
Enable Multidex through build.gradle
of your app module
multiDexEnabled true
Same as below -
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.xx.xxx"
minSdkVersion 15
targetSdkVersion 27
versionCode 1
versionName "1.0"
multiDexEnabled true //Add this
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
shrinkResources true
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
Then follow below steps -
Build
menu -> press the Clean Project
button.Rebuild Project
button from the Build
menu.File -> Invalidate cashes / Restart
compile
is now deprecated so it's better to use implementation
or api
Make sure you have this code on you component:
export class Component {
checked = true;
}
As pointed out by @Jayan in another post, the solution was to do the following
import jenkins.model.*
jenkins = Jenkins.instance
Then I was able to do the rest of my scripting the way it was.
I simply needed to update my project's dependencies and then restart the server.
To use await
/async
you need methods that return promises. The core API functions don't do that without wrappers like promisify
:
const fs = require('fs');
const util = require('util');
// Convert fs.readFile into Promise version of same
const readFile = util.promisify(fs.readFile);
function getStuff() {
return readFile('test');
}
// Can't use `await` outside of an async function so you need to chain
// with then()
getStuff().then(data => {
console.log(data);
})
As a note, readFileSync
does not take a callback, it returns the data or throws an exception. You're not getting the value you want because that function you supply is ignored and you're not capturing the actual return value.
Swift 5, Xcode 11.4
`UIApplication.shared.keyWindow`
It will give deprecation warning. ''keyWindow' was deprecated in iOS 13.0: Should not be used for applications that support multiple scenes as it returns a key window across all connected scenes' because of connected scenes. I use this way.
extension UIView {
var safeAreaBottom: CGFloat {
if #available(iOS 11, *) {
if let window = UIApplication.shared.keyWindowInConnectedScenes {
return window.safeAreaInsets.bottom
}
}
return 0
}
var safeAreaTop: CGFloat {
if #available(iOS 11, *) {
if let window = UIApplication.shared.keyWindowInConnectedScenes {
return window.safeAreaInsets.top
}
}
return 0
}
}
extension UIApplication {
var keyWindowInConnectedScenes: UIWindow? {
return windows.first(where: { $0.isKeyWindow })
}
}
I would emphasize the importance of limiting the ::ng-deep
to only children of a component by requiring the parent to be an encapsulated css class.
For this to work it's important to use the ::ng-deep
after the parent, not before otherwise it would apply to all the classes with the same name the moment the component is loaded.
Using the :host
keyword before ::ng-deep
will handle this automatically:
:host ::ng-deep .mat-checkbox-layout
Alternatively you can achieve the same behavior by adding a component scoped CSS class before the ::ng-deep
keyword:
.my-component ::ng-deep .mat-checkbox-layout {
background-color: aqua;
}
Component template:
<h1 class="my-component">
<mat-checkbox ....></mat-checkbox>
</h1>
Resulting (Angular generated) css will then include the uniquely generated name and apply only to its own component instance:
.my-component[_ngcontent-c1] .mat-checkbox-layout {
background-color: aqua;
}
The answers above are incorrect, they will all run weather or not the submission is successful... You need to write an error component that will receive any errors then check if there are errors in state, if there are not then clear the form....
use .then()
example:
const onSubmit = e => {
e.preventDefault();
const fd = new FormData();
fd.append("ticketType", ticketType);
fd.append("ticketSubject", ticketSubject);
fd.append("ticketDescription", ticketDescription);
fd.append("itHelpType", itHelpType);
fd.append("ticketPriority", ticketPriority);
fd.append("ticketAttachments", ticketAttachments);
newTicketITTicket(fd).then(()=>{
setTicketData({
ticketType: "IT",
ticketSubject: "",
ticketDescription: "",
itHelpType: "",
ticketPriority: ""
})
})
};
<div class="col-md-12">
<p style="color: #28a745; font-weight: bold; font-size:25px; text-align: right " >Total Productos a pagar= {{ getTotal() }} {{ getResult() | currency }}
<button class="btn btn-success" type="submit" [disabled]="!getResult()" (click)="onSubmit()">
Ver Pedido
</button>
</p>
</div>
You can use the built-in forEach
function for arrays.
Like this:
//this sets all product descriptions to a max length of 10 characters
data.products.forEach( (element) => {
element.product_desc = element.product_desc.substring(0,10);
});
Your version wasn't wrong though. It should look more like this:
for(let i=0; i<data.products.length; i++){
console.log(data.products[i].product_desc); //use i instead of 0
}
I am trying to make work the previous replies and none of them worked for me. So I found one solution for SwiftUI. Creating a file called UIDevice+Notch.swift
And its content:
extension UIDevice {
var hasNotch: Bool {
let bottom = UIApplication.shared.keyWindow?.safeAreaInsets.bottom ?? 0
return bottom > 0
}
}
Usage:
if UIDevice.current.hasNotch {
//... consider notch
} else {
//... don't have to consider notch
}
Have a look at Fuel library, a sample GET request
"https://httpbin.org/get"
.httpGet()
.responseString { request, response, result ->
when (result) {
is Result.Failure -> {
val ex = result.getException()
}
is Result.Success -> {
val data = result.get()
}
}
}
// You can also use Fuel.get("https://httpbin.org/get").responseString { ... }
// You can also use FuelManager.instance.get("...").responseString { ... }
A sample POST request
Fuel.post("https://httpbin.org/post")
.jsonBody("{ \"foo\" : \"bar\" }")
.also { println(it) }
.response { result -> }
Their documentation can be found here ?
In my case, the site was fine in server but not in local. Then I remember I was working on secure website.
So in file config.session.php, set the variable secure to false
'secure' => env('SESSION_SECURE_COOKIE', false),
For me it was changing.
this.name = response.data;
To what computed returns so;
this.$store.state.name = response.data;
I had a similar issue and solved after running these instructions!
npm install npm -g
npm install --save-dev @angular/cli@latest
npm install
npm start
The other way to tackle it is to use this code snippet:
JSON.parse(JSON.stringify(response)).data
This feels so wrong but it works
To support IE11 with auto-placement, I converted grid
to table
layout every time I used the grid layout in 1 dimension only. I also used margin
instead of grid-gap
.
The result is the same, see how you can do it here https://jsfiddle.net/hp95z6v1/3/
Give the same name in urls.py
path('detail/<int:id>', views.detail, name="detail"),
Google Play services SDK is inside Google Repository
.
Start Intellij IDEA.
On the Tools menu, click Android > SDK Manager.
Update the Android SDK Manager: click SDK Tools, expand Support Repository, select Google Repository, and then click OK.
Current Google Repository version is 57.
After update sync your project.
EDIT
From version 11.2.0
, we've to use the google maven repo so add google maven repo link in repositories tag. Check release note from here.
allprojects {
..
repositories {
...
maven {
url 'https://maven.google.com'
// Alternative URL is 'https://dl.google.com/dl/android/maven2/'
}
}
}
Do not even try to use flex; stay with css grid!! :)
https://jsfiddle.net/ctt3bqr0/
place-self: center;
is doing the centering work here.
If you want to center something that is inside div
that is inside grid cell you need to define nested grid in order to make it work. (Please look at the fiddle both examples shown there.)
https://css-tricks.com/snippets/css/complete-guide-grid/
Cheers!
There is no need to use angular http, you can get with js native functions
// you will ned this function to fetch the image blob._x000D_
async function getImage(url, fileName) {_x000D_
// on the first then you will return blob from response_x000D_
return await fetch(url).then(r => r.blob())_x000D_
.then((blob) => { // on the second, you just create a file from that blob, getting the type and name that intend to inform_x000D_
_x000D_
return new File([blob], fileName+'.'+ blob.type.split('/')[1]) ;_x000D_
});_x000D_
}_x000D_
_x000D_
// example url_x000D_
var url = 'https://img.freepik.com/vetores-gratis/icone-realista-quebrado-vidro-fosco_1284-12125.jpg';_x000D_
_x000D_
// calling the function_x000D_
getImage(url, 'your-name-image').then(function(file) {_x000D_
_x000D_
// with file reader you will transform the file in a data url file;_x000D_
var reader = new FileReader();_x000D_
reader.readAsDataURL(file);_x000D_
reader.onloadend = () => {_x000D_
_x000D_
// just putting the data url to img element_x000D_
document.querySelector('#image').src = reader.result ;_x000D_
}_x000D_
})
_x000D_
<img src="" id="image"/>
_x000D_
I ended up finding it through the IntelliSense on the get()
function. So, I'll post it here for anyone who is looking for similar information.
Anyways, the syntax is nearly identical, but slightly different. Instead of using URLSearchParams()
the parameters need to be initialized as HttpParams()
and the property within the get()
function is now called params
instead of search
.
import { HttpClient, HttpParams } from '@angular/common/http';
getLogs(logNamespace): Observable<any> {
// Setup log namespace query parameter
let params = new HttpParams().set('logNamespace', logNamespace);
return this._HttpClient.get(`${API_URL}/api/v1/data/logs`, { params: params })
}
I actually prefer this syntax as its a little more parameter agnostic. I also refactored the code to make it slightly more abbreviated.
getLogs(logNamespace): Observable<any> {
return this._HttpClient.get(`${API_URL}/api/v1/data/logs`, {
params: new HttpParams().set('logNamespace', logNamespace)
})
}
Multiple Parameters
The best way I have found thus far is to define a Params
object with all of the parameters I want to define defined within. As @estus pointed out in the comment below, there are a lot of great answers in This Question as to how to assign multiple parameters.
getLogs(parameters) {
// Initialize Params Object
let params = new HttpParams();
// Begin assigning parameters
params = params.append('firstParameter', parameters.valueOne);
params = params.append('secondParameter', parameters.valueTwo);
// Make the API call using the new parameters.
return this._HttpClient.get(`${API_URL}/api/v1/data/logs`, { params: params })
Multiple Parameters with Conditional Logic
Another thing I often do with multiple parameters is allow the use of multiple parameters without requiring their presence in every call. Using Lodash, it's pretty simple to conditionally add/remove parameters from calls to the API. The exact functions used in Lodash or Underscores, or vanilla JS may vary depending on your application, but I have found that checking for property definition works pretty well. The function below will only pass parameters that have corresponding properties within the parameters variable passed into the function.
getLogs(parameters) {
// Initialize Params Object
let params = new HttpParams();
// Begin assigning parameters
if (!_.isUndefined(parameters)) {
params = _.isUndefined(parameters.valueOne) ? params : params.append('firstParameter', parameters.valueOne);
params = _.isUndefined(parameters.valueTwo) ? params : params.append('secondParameter', parameters.valueTwo);
}
// Make the API call using the new parameters.
return this._HttpClient.get(`${API_URL}/api/v1/data/logs`, { params: params })
I had the same problem and which got resolved by using ./
before the directory name in my node.js
app, i.e.
app.use(express.static('./public'));
Here are two worthy caveats from the comments.
Either you want user to be of type
User | {}
orPartial<User>
, or you need to redefine theUser
type to allow an empty object. Right now, the compiler is correctly telling you that user is not a User. –jcalz
I don't think this should be considered a proper answer because it creates an inconsistent instance of the type, undermining the whole purpose of TypeScript. In this example, the property
Username
is left undefined, while the type annotation is saying it can't be undefined. –Ian Liu Rodrigues
One of the design goals of TypeScript is to "strike a balance between correctness and productivity." If it will be productive for you to do this, use Type Assertions to create empty objects for typed variables.
type User = {
Username: string;
Email: string;
}
const user01 = {} as User;
const user02 = <User>{};
user01.Email = "[email protected]";
Here is a working example for you.
Another problem can be that the python version you are using is not yet supported by opencv-python.
E.g. as of right now there is no opencv-python for python 3.8. You would need to downgrade your python to 3.7.5 for now.
If it's working in the debug, then wait
must be the proper solution.
I will suggest to use the explicit wait
, as given below:
WebDriverWait wait = new WebDriverWait(new ChromeDriver(), 5);
wait.until(ExpectedConditions.presenceOfElementLocated(By.cssSelector("#Passwd")));
Had this when I accidentally was calling
mapper.convertValue(...)
instead of
mapper.readValue(...)
So, just make sure you call correct method, since argument are same and IDE can find many things
React.MouseEvent works for me:
private onClick = (e: React.MouseEvent<HTMLInputElement>) => {
let button = e.target as HTMLInputElement;
}
React + TypeScript inline util method:
const navigateToExternalUrl = (url: string, shouldOpenNewTab: boolean = true) =>
shouldOpenNewTab ? window.open(url, "_blank") : window.location.href = url;
Abstract your initialization into a method, and call the method from mounted
and wherever else you want.
new Vue({
methods:{
init(){
//call API
//Setup game
}
},
mounted(){
this.init()
}
})
Then possibly have a button in your template to start over.
<button v-if="playerWon" @click="init">Play Again</button>
In this button, playerWon
represents a boolean value in your data that you would set when the player wins the game so the button appears. You would set it back to false in init
.
Apple hand three categories of certificates: Trusted
, Always Ask
and Blocked
. You'll encounter the issue if your certificate's type on the Blocked
and Always Ask
list. On Safari it show’s like:
And you can find the type of Always Ask
certificates on Settings > General > About > Certificate Trust Setting
There is the List of available trusted root certificates in iOS 11
The quickest way to get Dart-Code to reliably find your Flutter install and use it is to create a new FLUTTER_ROOT
environment variable and set it to your Flutter path.
I am not familiar with, react-table, so I do not know it has direct support for selecting and deselecting (it would be nice if it had).
If it does not, with the piece of code you already have you can install the onCLick handler. Now instead of trying to attach style directly to row, you can modify state, by for instance adding selected: true to row data. That would trigger rerender. Now you only have to override how are rows with selected === true rendered. Something along lines of:
// Any Tr element will be green if its (row.age > 20)
<ReactTable
getTrProps={(state, rowInfo, column) => {
return {
style: {
background: rowInfo.row.selected ? 'green' : 'red'
}
}
}}
/>
In your test code your are trying to pass App
to the spyOn function, but spyOn will only work with objects, not classes. Generally you need to use one of two approaches here:
1) Where the click handler calls a function passed as a prop, e.g.
class App extends Component {
myClickFunc = () => {
console.log('clickity clickcty');
this.props.someCallback();
}
render() {
return (
<div className="App">
<div className="App-header">
<img src={logo} className="App-logo" alt="logo" />
<h2>Welcome to React</h2>
</div>
<p className="App-intro" onClick={this.myClickFunc}>
To get started, edit <code>src/App.js</code> and save to reload.
</p>
</div>
);
}
}
You can now pass in a spy function as a prop to the component, and assert that it is called:
describe('my sweet test', () => {
it('clicks it', () => {
const spy = jest.fn();
const app = shallow(<App someCallback={spy} />)
const p = app.find('.App-intro')
p.simulate('click')
expect(spy).toHaveBeenCalled()
})
})
2) Where the click handler sets some state on the component, e.g.
class App extends Component {
state = {
aProperty: 'first'
}
myClickFunc = () => {
console.log('clickity clickcty');
this.setState({
aProperty: 'second'
});
}
render() {
return (
<div className="App">
<div className="App-header">
<img src={logo} className="App-logo" alt="logo" />
<h2>Welcome to React</h2>
</div>
<p className="App-intro" onClick={this.myClickFunc}>
To get started, edit <code>src/App.js</code> and save to reload.
</p>
</div>
);
}
}
You can now make assertions about the state of the component, i.e.
describe('my sweet test', () => {
it('clicks it', () => {
const app = shallow(<App />)
const p = app.find('.App-intro')
p.simulate('click')
expect(app.state('aProperty')).toEqual('second');
})
})
Worked by lowering the spring boot starter parent to 1.5.13
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.13.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
If someone searching how to toggle header so in componentDidMount write something like:
this.props.navigation.setParams({
hideHeader: true,
});
When
static navigationOptions = ({ navigation }) => {
const {params = {}} = navigation.state;
if (params.hideHeader) {
return {
header: null,
}
}
return {
headerLeft: <Text>Hi</Text>,
headerRight: <Text>Hi</Text>,
headerTitle: <Text>Hi</Text>
};
};
And somewhere when event finish job:
this.props.navigation.setParams({
hideHeader: false,
});
kubeadm reset
/*On Debian base Operating systems you can use the following command.*/
# on debian base
sudo apt-get purge kubeadm kubectl kubelet kubernetes-cni kube*
/*On CentOs distribution systems you can use the following command.*/
#on centos base
sudo yum remove kubeadm kubectl kubelet kubernetes-cni kube*
# on debian base
sudo apt-get autoremove
#on centos base
sudo yum autoremove
/For all/
sudo rm -rf ~/.kube
The practical reason why this doesn't work is not related to threads. The point is that node.left
is effectively translated into node.getLeft()
.
This property getter might be defined as:
val left get() = if (Math.random() < 0.5) null else leftPtr
Therefore two calls might not return the same result.
I use props
and variables computed
properties if I need create logic after to receive the changes
export default {
name: 'getObjectDetail',
filters: {},
components: {},
props: {
objectDetail: {
type: Object,
required: true
}
},
computed: {
_objectDetail: {
let value = false
...
if (someValidation)
...
}
}
First, wrap your Row
or Column
in Expanded
widget
Then
Text(
'your long text here',
overflow: TextOverflow.fade,
maxLines: 1,
softWrap: false,
style: Theme.of(context).textTheme.body1,
)
I was using blazor webassembly as client and asp.net web api core as backend and had cors problem too.
I found solution with these code:
My ASP.Net core web api Startup.cs ConfigureServices and Configure methods first lines looks like this:
public void ConfigureServices(IServiceCollection services)
{
services.AddCors(options => options.AddPolicy("ApiCorsPolicy", builder =>
{
builder.WithOrigins("http://example.com").AllowAnyMethod().AllowAnyHeader();
}));
//other code below...
}
and my Configure method:
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
app.UseCors(
options => options.WithOrigins("http://example.com").AllowAnyMethod().AllowAnyHeader()
);
//other code below...
}
change http://example.com
with your client domain or ip address
I was looking for a solution to a similar TypeScript error with React:
Property 'dataset' does not exist on type EventTarget in TypeScript
I wanted to get to event.target.dataset
of a clicked button element in React:
<button
onClick={onClickHandler}
data-index="4"
data-name="Foo Bar"
>
Delete Candidate
</button>
Here is how I was able to get the dataset
value to "exist" via TypeScript:
const onClickHandler = (event: React.MouseEvent<HTMLButtonElement>) => {
const { name, index } = (event.target as HTMLButtonElement).dataset
console.log({ name, index })
// do stuff with name and index…
}
By this you can get any index in *ngFor
loop in ANGULAR ...
<ul>
<li *ngFor="let object of myArray; let i = index; let first = first ;let last = last;">
<div *ngIf="first">
// write your code...
</div>
<div *ngIf="last">
// write your code...
</div>
</li>
</ul>
We can use these alias in *ngFor
index
: number
: let i = index
to get all index of object.first
: boolean
: let first = first
to get first index of object.last
: boolean
: let last = last
to get last index of object.odd
: boolean
: let odd = odd
to get odd index of object.even
: boolean
: let even = even
to get even index of object.You need to install this extension to Visual Studio 2017/2019 in order to get access to the Installer Projects.
According to the page:
This extension provides the same functionality that currently exists in Visual Studio 2015 for Visual Studio Installer projects. To use this extension, you can either open the Extensions and Updates dialog, select the online node, and search for "Visual Studio Installer Projects Extension," or you can download directly from this page.
Once you have finished installing the extension and restarted Visual Studio, you will be able to open existing Visual Studio Installer projects, or create new ones.
Close Visual Studio, find the solution's .suo file, delete it, reopen Visual Studio.
Faced the problem of missing stdlib.h
and stdio.h
(and maybe more) after installing VS2017 Community on a new computer and migrating a solution from VS2013 to VS2017.
Used @Maxim Akristiniy's proposal, but still got error message regarding toolset compatibility. However VS itself suggested to do solution retarget by right-clicking on the solution in Solution Explorer, then selecting Retarget solution
from the menu and the updated Windows SDK Version
from the drop-down list.
Now my projects build w/o a problem.
Note that you may need to make the project your startup project for the retargeting to catch.
val
like constant
variable, itself cannot be changed, only can be read, but the properties of a val
can be modified;
var
just like mutant variable in other programming languages.
In my case (I'm using typescript) I was trying to simulate response with fake data where the data is assigned later on. My first attempt was with:
let response = {status: 200, data: []};
and later, on the assignment of the fake data it starts complaining that it is not assignable to type 'never[]'. Then I defined the response like follows and it accepted it..
let dataArr: MyClass[] = [];
let response = {status: 200, data: dataArr};
and assigning of the fake data:
response.data = fakeData;
The top post has 'as TextView' appended on the end. You might get other compiler errors if you leave this on. The following should be fine.
val text: TextView = findViewById(R.id.android_text) as TextView
Where 'android_text' is the ID of your textView
I tried use [disabled]="!editmode"
but it not work in my case.
This is my solution [disabled]="!editmode ? 'disabled': null"
, I share for whom concern.
<button [disabled]="!editmode ? 'disabled': null"
(click)='loadChart()'>
<div class="btn-primary">Load Chart</div>
</button>
At least one item in your list is either not three dimensional, or its second or third dimension does not match the other elements. If only the first dimension does not match, the arrays are still matched, but as individual objects, no attempt is made to reconcile them into a new (four dimensional) array. Some examples are below:
That is, the offending element's shape != (?, 224, 3)
,
or ndim != 3
(with the ?
being non-negative integer).
That is what is giving you the error.
You'll need to fix that, to be able to turn your list into a four (or three) dimensional array. Without context, it is impossible to say if you want to lose a dimension from the 3D items or add one to the 2D items (in the first case), or change the second or third dimension (in the second case).
Here's an example of the error:
>>> a = [np.zeros((224,224,3)), np.zeros((224,224,3)), np.zeros((224,224))]
>>> np.array(a)
ValueError: could not broadcast input array from shape (224,224,3) into shape (224,224)
or, different type of input, but the same error:
>>> a = [np.zeros((224,224,3)), np.zeros((224,224,3)), np.zeros((224,224,13))]
>>> np.array(a)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: could not broadcast input array from shape (224,224,3) into shape (224,224)
Alternatively, similar but with a different error message:
>>> a = [np.zeros((224,224,3)), np.zeros((224,224,3)), np.zeros((224,100,3))]
>>> np.array(a)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: could not broadcast input array from shape (224,224,3) into shape (224)
But the following will work, albeit with different results than (presumably) intended:
>>> a = [np.zeros((224,224,3)), np.zeros((224,224,3)), np.zeros((10,224,3))]
>>> np.array(a)
# long output omitted
>>> newa = np.array(a)
>>> newa.shape
3 # oops
>>> newa.dtype
dtype('O')
>>> newa[0].shape
(224, 224, 3)
>>> newa[1].shape
(224, 224, 3)
>>> newa[2].shape
(10, 224, 3)
>>>
org.glassfish.jersey.servlet.ServletContainer.class
here remove .class
org.glassfish.jersey.servlet.ServletContainer now you wont get
I had a similar problem that I had a giant list of properties that I wanted to have both an interface, and an object out of it.
NOTE: I didn't want to write (type with keyboard) the properties twice! Just DRY.
One thing to note here is, interfaces are enforced types at compile-time, while objects are mostly run-time. (Source)
As @derek mentioned in another answer, the common denominator of interface and object can be a class that serves both a type and a value.
So, TL;DR, the following piece of code should satisfy the needs:
class MyTableClass {
// list the propeties here, ONLY WRITTEN ONCE
id = "";
title = "";
isDeleted = false;
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// This is the pure interface version, to be used/exported
interface IMyTable extends MyTableClass { };
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Props type as an array, to be exported
type MyTablePropsArray = Array<keyof IMyTable>;
// Props array itself!
const propsArray: MyTablePropsArray =
Object.keys(new MyTableClass()) as MyTablePropsArray;
console.log(propsArray); // prints out ["id", "title", "isDeleted"]
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Example of creating a pure instance as an object
const tableInstance: MyTableClass = { // works properly!
id: "3",
title: "hi",
isDeleted: false,
};
(Here is the above code in Typescript Playground to play more)
PS. If you don't want to assign initial values to the properties in the class, and stay with the type, you can do the constructor trick:
class MyTableClass {
// list the propeties here, ONLY WRITTEN ONCE
constructor(
readonly id?: string,
readonly title?: string,
readonly isDeleted?: boolean,
) {}
}
console.log(Object.keys(new MyTableClass())); // prints out ["id", "title", "isDeleted"]
You shouldn't use ${varName}
when you're outside of strings, you should just use varName
. Inside strings you use it like this; echo "this is a string ${someVariable}";
. Infact you can place an general java expression inside of ${...}
; echo "this is a string ${func(arg1, arg2)}
.
You can do something like this:
public myform()
{
InitializeComponent(); // this will be called in ComboBox ComboBox = new System.Windows.Forms.ComboBox();
}
private void Form1_Load(object sender, EventArgs e)
{
// TODO: This line of code loads data into the 'myDataSet.someTable' table. You can move, or remove it, as needed.
this.myTableAdapter.Fill(this.myDataSet.someTable);
comboBox1.SelectedItem = null;
comboBox1.SelectedText = "--select--";
}
I know it's too late. But I found a solution even if you are using overflow or display:flex in parent elements sticky will work.
steps:
Create a parent element for the element you want to set sticky (Get sure that the created element is relative to body or to full-width & full-height parent).
Add the following styles to the parent element:
{ position: absolute; height: 100vmax; }
For the sticky element, get sure to add z-index that is higher than all elements in the page.
That's it! Now it must work. Regards
I encountered this issue while trying to build an npm project. It was failing to install a node-sass package and this was the error it was printing. I solved it by setting my npm proxy correctly so that i
This is the fastest and the most readable way:
this.setState({...this.state.jasper, name: 'someothername'});
Even if this.state.jasper
already contains a name property, the new name name: 'someothername'
with be used.
You can use /* tslint:disable-next-line */
to locally disable tslint. However, as this is a compiler error disabling tslint might not help.
You can always temporarily cast $
to any
:
delete ($ as any).summernote.options.keyMap.pc.TAB
which will allow you to access whatever properties you want.
Edit: As of Typescript 2.6, you can now bypass a compiler error/warning for a specific line:
if (false) {
// @ts-ignore: Unreachable code error
console.log("hello");
}
Note that the official docs "recommend you use [this] very sparingly". It is almost always preferable to cast to any
instead as that better expresses intent.
Almost same problem get resolved by creating a geoexplorer.xml file in /opt/apache-tomcat-8.5.37/conf/Catalina/localhost content of geoexplorer.xml file is
<Context displayName="geoexplorer" docBase="/usr/share/opengeo/geoexplorer" path="/geoexplorer"/>
For me, the problem was in XML migrations. I deleted all tables and sequences and it works on next bootRun
When I used the Scaffold-DbContext command, it didn't include the "[key]" annotation in the model files or the "entity.HasKey(..)" entry in the "modelBuilder.Entity" blocks. My solution was to add a line like this in every "modelBuilder.Entity" block in the *Context.cs file:
entity.HasKey(X => x.Id);
I'm not saying this is better, or even the right way. I'm just saying that it worked for me.
You don't put a component in directives
You register it in @NgModule
declarations:
@NgModule({
imports: [ BrowserModule ],
declarations: [ App , MyChildComponent ],
bootstrap: [ App ]
})
and then You just put it in the Parent's Template HTML as : <my-child></my-child>
That's it.
You probably have allProviders
typed as object[]
as well. And property country
does not exist on object
. If you don't care about typing, you can declare both allProviders
and countryProviders
as Array<any>
:
let countryProviders: Array<any>;
let allProviders: Array<any>;
If you do want static type checking. You can create an interface for the structure and use it:
interface Provider {
region: string,
country: string,
locale: string,
company: string
}
let countryProviders: Array<Provider>;
let allProviders: Array<Provider>;
The previous answer is pretty good, but I also wanted to mention that there is a fixed layout equivalent for grids, you just need to write minmax(0, 1fr)
instead of 1fr
as your track size.
You should verify following things if the two way binding does not work.
In html the ngModel should be called this way. There is no dependency on other attribute of the input element
<input [(ngModel)]="inputText">
Make Sure FormsModule is imported into the modules file
app.modules.ts
import { FormsModule } from '@angular/forms';
@NgModule({
declarations: [
AppComponent,
HomeComponent // suppose, this is the component in which you are trying to use two ay binding
],
imports: [
BrowserModule,
FormsModule,
// other modules
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
Make sure the component in which you are trying to use ngModel for two way binding is added in the declarations of the. Code added in the previous point #2
This is everything that you need to do to make the two way binding using ngModel work, this is validated up to angular 9
I have solved it by importing FormModule in a shared.module and importing the shared.module in all other modules. My case is the FormModule is used in multiple modules.
Simply add .. import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
imports: [ .. BrowserAnimationsModule
],
in app.module.ts file.
make sure you have installed .. npm install @angular/animations@latest --save
Forget trying to decipher the example .ts - as others have said it is often incomplete.
Instead just click on the 'pop-out' icon circled here and you'll get a fully working StackBlitz example.
You can quickly confirm the required modules:
Comment out any instances of ReactiveFormsModule
, and sure enough you'll get the error:
Template parse errors:
Can't bind to 'formControl' since it isn't a known property of 'input'.
In general, the error ValueError: Wrong number of items passed 3, placement implies 1
suggests that you are attempting to put too many pigeons in too few pigeonholes. In this case, the value on the right of the equation
results['predictedY'] = predictedY
is trying to put 3 "things" into a container that allows only one. Because the left side is a dataframe column, and can accept multiple items on that (column) dimension, you should see that there are too many items on another dimension.
Here, it appears you are using sklearn for modeling, which is where gaussian_process.GaussianProcess()
is coming from (I'm guessing, but correct me and revise the question if this is wrong).
Now, you generate predicted values for y here:
predictedY, MSE = gp.predict(testX, eval_MSE = True)
However, as we can see from the documentation for GaussianProcess, predict()
returns two items. The first is y, which is array-like (emphasis mine). That means that it can have more than one dimension, or, to be concrete for thick headed people like me, it can have more than one column -- see that it can return (n_samples, n_targets)
which, depending on testX
, could be (1000, 3)
(just to pick numbers). Thus, your predictedY
might have 3 columns.
If so, when you try to put something with three "columns" into a single dataframe column, you are passing 3 items where only 1 would fit.
First thing you need to do here is correct the hibernate dialect version like @JavaLearner has explained. Then you have make sure that all the versions of hibernate dependencies you are using are upto date. Typically you would need: database driver like mysql-connector-java
, hibernate dependency: hibernate-core
and hibernate entity manager: hibernate-entitymanager
. Lastly don't forget to check that the database tables you are using are not the reserved words like order
, group
, limit
, etc. It might save you a lot of headache.
Problem solved, I've not added the index.html. Which is point out in the web.xml
Note: a project may have more than one web.xml file.
if there are another web.xml in
src/main/webapp/WEB-INF
Then you might need to add another index (this time index.jsp) to
src/main/webapp/WEB-INF/pages/
I changes only two points
Obviously they were according to the version of the versions that it has, otherwise they would have to download them
buil.gradle(Project)
dependencies {
classpath 'com.android.toolsg.build:gradle:2.3.2'
..
}
gradle.wrapper.properties
...
distributionUrl=https://services.gradle.org/distributions/gradle-3.3-all.zip
Nested State in React is wrong design
Read this excellent answer.
Reasoning behind this answer:
React's setState is just a built-in convenience, but you soon realise that it has its limits. Using custom properties and intelligent use of
forceUpdate
gives you much more. eg:class MyClass extends React.Component { myState = someObject inputValue = 42 ...
MobX, for example, ditches state completely and uses custom observable properties.
Use Observables instead of state in React components.
There is another shorter way to update whatever nested property.
this.setState(state => {
state.nested.flag = false
state.another.deep.prop = true
return state
})
this.setState(state => (state.nested.flag = false, state))
note: This here is Comma operator ~MDN, see it in action here (Sandbox).
It is similar to (though this doesn't change state reference)
this.state.nested.flag = false
this.forceUpdate()
For the subtle difference in this context between forceUpdate
and setState
see the linked example and sandbox.
Of course this is abusing some core principles, as the state
should be read-only, but since you are immediately discarding the old state and replacing it with new state, it is completely ok.
Even though the component containing the state will update and rerender properly (except this gotcha), the props will fail to propagate to children (see Spymaster's comment below). Only use this technique if you know what you are doing.
For example, you may pass a changed flat prop that is updated and passed easily.
render(
//some complex render with your nested state
<ChildComponent complexNestedProp={this.state.nested} pleaseRerender={Math.random()}/>
)
Now even though reference for complexNestedProp did not change (shouldComponentUpdate)
this.props.complexNestedProp === nextProps.complexNestedProp
the component will rerender whenever parent component updates, which is the case after calling this.setState
or this.forceUpdate
in the parent.
Using nested state and mutating the state directly is dangerous because different objects might hold (intentionally or not) different (older) references to the state and might not necessarily know when to update (for example when using PureComponent
or if shouldComponentUpdate
is implemented to return false
) OR are intended to display old data like in the example below.
Imagine a timeline that is supposed to render historic data, mutating the data under the hand will result in unexpected behaviour as it will also change previous items.
Anyway here you can see that Nested PureChildClass
is not rerendered due to props failing to propagate.
On Windows:
To get started, open the command prompt by clicking on Start and then typing cmd. In the command window, go ahead and type in the following command:
netstat -a -n -o
In the command above, the -o parameter is what will add the PID to the end of the table. Press enter and you should see something like this:
Now to see the name of the process that is using that port, go to Task Manager by pressing CTRL + SHIFT + ESC and then click on the Process tab. In Windows 10, you should click on the Details tab.
By default, the task manager does not display the process ID, so you have to click on View and then Select Columns.
You might also need to look into services running in background. To do that right-click and select open services as shown below:
Hope it helps :)
Another solution is to use this library:
https://github.com/3846masa/axios-cookiejar-support
which integrates "Tough Cookie" support in to Axios. Note that this approach still requires the withCredentials
flag.
You can use Object.values
in TypeScript by doing this (<any>Object).values(data)
if for some reason you can't update to ES7 in tsconfig.
[Vue warn]: Property or method "changeSetting" is not defined on the instance but referenced during render. Make sure to declare reactive data properties in the data option. (found in <MainTable>)
The error is occurring because the changeSetting
method is being referenced in the MainTable
component here:
"<button @click='changeSetting(index)'> Info </button>" +
However the changeSetting
method is not defined in the MainTable
component. It is being defined in the root component here:
var app = new Vue({
el: "#settings",
data: data,
methods: {
changeSetting: function(index) {
data.settingsSelected = data.settings[index];
}
}
});
What needs to be remembered is that properties and methods can only be referenced in the scope where they are defined.
Everything in the parent template is compiled in parent scope; everything in the child template is compiled in child scope.
You can read more about component compilation scope in Vue's documentation.
So far there has been a lot of talk about defining things in the correct scope so the fix is just to move the changeSetting
definition into the MainTable
component?
It seems that simple but here's what I recommend.
You'd probably want your MainTable
component to be a dumb/presentational component. (Here is something to read if you don't know what it is but a tl;dr is that the component is just responsible for rendering something – no logic). The smart/container element is responsible for the logic – in the example given in your question the root component would be the smart/container component. With this architecture you can use Vue's parent-child communication methods for the components to interact. You pass down the data for MainTable
via props and emit user actions from MainTable
to its parent via events. It might look something like this:
Vue.component('main-table', {
template: "<ul>" +
"<li v-for='(set, index) in settings'>" +
"{{index}}) " +
"{{set.title}}" +
"<button @click='changeSetting(index)'> Info </button>" +
"</li>" +
"</ul>",
props: ['settings'],
methods: {
changeSetting(value) {
this.$emit('change', value);
},
},
});
var app = new Vue({
el: '#settings',
template: '<main-table :settings="data.settings" @change="changeSetting"></main-table>',
data: data,
methods: {
changeSetting(value) {
// Handle changeSetting
},
},
}),
The above should be enough to give you a good idea of what to do and kickstart resolving your issue.
I also had the same error:
***************************
APPLICATION FAILED TO START
***************************
Description:
Field repository in com.kalsym.next.gen.campaign.controller.CampaignController required a bean of type 'com.kalsym.next.gen.campaign.data.CustomerRepository' that could not be found.
Action:
Consider defining a bean of type 'com.kalsym.next.gen.campaign.data.CustomerRepository' in your configuration.de here
And my packages were constructed in the same way as mentioned in the accepted answer. I fixed my issue by adding EnableMongoRepositories annotation in the main class like this:
@SpringBootApplication
@EnableMongoRepositories(basePackageClasses = CustomerRepository.class)
public class CampaignAPI {
public static void main(String[] args) {
SpringApplication.run(CampaignAPI.class, args);
}
}
If you need to add multiple don't forget the curly braces:
@EnableMongoRepositories(basePackageClasses
= {
MSASMSRepository.class, APartyMappingRepository.class
})
Replace
import { Router, Route, Link, browserHistory } from 'react-router';
With
import { BrowserRouter as Router, Route } from 'react-router-dom';
It will start working. It is because react-router-dom exports BrowserRouter
In Visual Studio Professional or Enterprise you can enable CodeLens by doing this:
Tools ? Options ? Text Editor ? All Languages ? CodeLens
This is not available in the Community Edition
Like this ? (Visual Studio Code version 0.10.11)
Fold All (Ctrl+K Ctrl+0)
Unfold All (Ctrl+K Ctrl+J)
Fold Level n (Ctrl+K Ctrl+N)
React has a concept of components state, so if you want to Toggle, use setState:
- App.js
import React from 'react';
import TestState from './components/TestState';
class App extends React.Component {
render() {
return (
<div className="App">
<h1>React State Example</h1>
<TestState/>
</div>
);
}
}
export default App;
- components/TestState.js
import React from 'react';
class TestState extends React.Component
{
constructor()
{
super();
this.state = {
message: 'Please subscribe',
status: "Subscribe"
}
}
changeMessage()
{
if (this.state.status === 'Subscribe')
{
this.setState({message : 'Thank You For Scubscribing.', status: 'Unsubscribe'})
}
else
{
this.setState({ message: 'Please subscribe', status: 'Subscribe' })
}
}
render()
{
return (
<div>
<h1>{this.state.message}</h1>
<button onClick={()=> this.changeMessage() } >{this.state.status}</button>
</div>
)
}
}
export default TestState;
- Output
you can either reuse the docker shell, with eval $(minikube docker-env)
, alternatively, you can leverage on docker save | docker load
across the shells.
I had the same problem and I Changed this
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
here 1.7 is my JDK version.it was solved.
On my Ubuntu servers even as sudo I would get Cannot open ‘/var/lib/docker/containers/*/*-json.log’ for writing: No such file or directory
But combing the docker inspect and truncate answers worked :
sudo truncate -s 0 `docker inspect --format='{{.LogPath}}' <container>`
You can create a wrapper function that takes in a promise and returns an array with data if no error and the error if there was an error.
function safePromise(promise) {
return promise.then(data => [ data ]).catch(error => [ null, error ]);
}
Use it like this in ES7 and in an async function:
async function checkItem() {
const [ item, error ] = await safePromise(getItem(id));
if (error) { return null; } // handle error and return
return item; // no error so safe to use item
}
You can run using the following command. Here I want to run using spring profile local
:
spring-boot:run -Drun.jvmArguments="-Dspring.profiles.active=local"
Add your <script>
to the bottom of your <body>
, or add an event listener for DOMContentLoaded
following this StackOverflow question.
If that script executes in the <head>
section of the code, document.getElementsByClassName(...)
will return an empty array because the DOM is not loaded yet.
You're getting the Type Error
because you're referencing search_span[0]
, but search_span[0]
is undefined
.
This works when you execute it in Dev Tools because the DOM is already loaded.
You can also get them with pure javascript.
For example:
new URL(location.href).searchParams.get('page')
For this url: websitename.com/user/?page=1, it would return a value of 1
Since unpaidMembers
is a dictionary it always returns two values when called with .items()
- (key, value). You may want to keep your data as a list of tuples [(name, email, lastname), (name, email, lastname)..]
.
If you are using Vue you can also use v.model.lazy
instead of debounce
but remember v.model.lazy
will not always work as Vue limits it for custom components.
For custom components you should use :value
along with @change.native
<b-input :value="data" @change.native="data = $event.target.value" ></b-input>
For the record, the spring.jpa.hibernate.ddl-auto
property is Spring Data JPA specific and is their way to specify a value that will eventually be passed to Hibernate under the property it knows, hibernate.hbm2ddl.auto
.
The values create
, create-drop
, validate
, and update
basically influence how the schema tool management will manipulate the database schema at startup.
For example, the update
operation will query the JDBC driver's API to get the database metadata and then Hibernate compares the object model it creates based on reading your annotated classes or HBM XML mappings and will attempt to adjust the schema on-the-fly.
The update
operation for example will attempt to add new columns, constraints, etc but will never remove a column or constraint that may have existed previously but no longer does as part of the object model from a prior run.
Typically in test case scenarios, you'll likely use create-drop
so that you create your schema, your test case adds some mock data, you run your tests, and then during the test case cleanup, the schema objects are dropped, leaving an empty database.
In development, it's often common to see developers use update
to automatically modify the schema to add new additions upon restart. But again understand, this does not remove a column or constraint that may exist from previous executions that is no longer necessary.
In production, it's often highly recommended you use none
or simply don't specify this property. That is because it's common practice for DBAs to review migration scripts for database changes, particularly if your database is shared across multiple services and applications.
Another good approach and one that is a bit more elegant is as follows:
watch:{
'item.someOtherProp': function (newVal, oldVal){
//to work with changes in someOtherProp
},
'item.prop': function(newVal, oldVal){
//to work with changes in prop
}
}
(I learned this approach from @peerbolte in the comment here)
Here is one more way to specify event.target
:
import { Component, EventEmitter, Output } from '@angular/core';_x000D_
_x000D_
@Component({_x000D_
selector: 'text-editor',_x000D_
template: `<textarea (keyup)="emitWordCount($event)"></textarea>`_x000D_
})_x000D_
export class TextEditorComponent {_x000D_
_x000D_
@Output() countUpdate = new EventEmitter<number>();_x000D_
_x000D_
emitWordCount({ target = {} as HTMLTextAreaElement }) { // <- right there_x000D_
_x000D_
this.countUpdate.emit(_x000D_
// using it directly without `event`_x000D_
(target.value.match(/\S+/g) || []).length);_x000D_
}_x000D_
}
_x000D_
In my case the problem was the name of the folder where the project was contained, which had the sign "!" All I did was rename the folder and everything was ready.
In the current component's module import RouterModule.
Like:-
import {RouterModule} from '@angular/router';
@NgModule({
declarations:[YourComponents],
imports:[RouterModule]
...
It helped me.
In options object you have used "=" sign to assign value to port but we have to use ":" to assign values to properties in object when using object literal to create an object i.e."{}" ,these curly brackets. Even when you use function expression or create an object inside object you have to use ":" sign. for e.g.:
var rishabh = {
class:"final year",
roll:123,
percent: function(marks1, marks2, marks3){
total = marks1 + marks2 + marks3;
this.percentage = total/3 }
};
john.percent(85,89,95);
console.log(rishabh.percentage);
here we have to use commas "," after each property. but you can use another style to create and initialize an object.
var john = new Object():
john.father = "raja"; //1st way to assign using dot operator
john["mother"] = "rani";// 2nd way to assign using brackets and key must be string
I personally ran into the same error. None of the above solutions worked for me.
In fact, my component looks like this (in a file called my-component.js) :
Vue.component('my-component', {
data() {
return {
...
}
},
props: {
...
},
template:`
<div>
...
</div>
`
});
And I imported it like this in another component:
import MyComponent from '{path-to-folder}/my-component';
Vue.component('parent_component', {
components: {
MyComponent
}
});
The weird thing is that this worked in some components but not in this "parent_component". So what I had to do in the component itself was stock it in a variable and export it as default.
const MyComponent = Vue.component('my-component', {
data() {
return {
...
}
},
props: {
...
},
template:`
<div>
...
</div>
`
});
export default MyComponent;
It could seem obvious but as I said above, it works in 1 other component without this so I couldn't really understand why, but at least, this works everywhere now.
For method decorator declaration
with configuration "noImplicitAny": true,
you can specify type of this variable explicitly depends on @tony19's answer
function logParameter(this:any, target: Object, propertyName: string) {
//...
}
Download the source of deme from here(Json parsing in android kotlin)
Add this dependency:
compile 'com.squareup.okhttp3:okhttp:3.8.1'
Call api function:
fun run(url: String) {
dialog.show()
val request = Request.Builder()
.url(url)
.build()
client.newCall(request).enqueue(object : Callback {
override fun onFailure(call: Call, e: IOException) {
dialog.dismiss()
}
override fun onResponse(call: Call, response: Response) {
var str_response = response.body()!!.string()
val json_contact:JSONObject = JSONObject(str_response)
var jsonarray_contacts:JSONArray= json_contact.getJSONArray("contacts")
var i:Int = 0
var size:Int = jsonarray_contacts.length()
al_details= ArrayList();
for (i in 0.. size-1) {
var json_objectdetail:JSONObject=jsonarray_contacts.getJSONObject(i)
var model:Model= Model();
model.id=json_objectdetail.getString("id")
model.name=json_objectdetail.getString("name")
model.email=json_objectdetail.getString("email")
model.address=json_objectdetail.getString("address")
model.gender=json_objectdetail.getString("gender")
al_details.add(model)
}
runOnUiThread {
//stuff that updates ui
val obj_adapter : CustomAdapter
obj_adapter = CustomAdapter(applicationContext,al_details)
lv_details.adapter=obj_adapter
}
dialog.dismiss()
}
})
One of the Related posts gave me the (simple) answer.
Apparently the auto
value on the grid-template-rows
property does exactly what I was looking for.
.grid {
display:grid;
grid-template-columns: 1fr 1.5fr 1fr;
grid-template-rows: auto auto 1fr 1fr 1fr auto auto;
grid-gap:10px;
height: calc(100vh - 10px);
}
When filtering a DataFrame with string values, I find that the pyspark.sql.functions
lower
and upper
come in handy, if your data could have column entries like "foo" and "Foo":
import pyspark.sql.functions as sql_fun
result = source_df.filter(sql_fun.lower(source_df.col_name).contains("foo"))
In order for a bot to send a message, you need <client>.send()
, the client
is where the bot will send a message to(A channel, everywhere in the server, or a PM). Since you want the bot to PM a certain user, you can use message.author
as your client
. (you can replace author
as mentioned user in a message or something, etc)
Hence, the answer is: message.author.send("Your message here.")
I recommend looking up the Discord.js documentation about a certain object's properties whenever you get stuck, you might find a particular function that may serve as your solution.
If you would like to handle multiple inputs with one handler take a look at my approach where I'm using computed property
to get value of the input based on it's name.
import React, { useState } from "react";
import "./style.css";
export default function App() {
const [state, setState] = useState({
name: "John Doe",
email: "[email protected]"
});
const handleChange = e => {
setState({
[e.target.name]: e.target.value
});
};
return (
<div>
<input
type="text"
className="name"
name="name"
value={state.name}
onChange={handleChange}
/>
<input
type="text"
className="email"
name="email"
value={state.email}
onChange={handleChange}
/>
</div>
);
}
(<HTMLInputElement>document.getElementById('loginInput')).value = '123';
Angular cannot take HTML elements directly thereby you need to specify the element type by binding the above generic to it.
UPDATE::
This can also be done using ViewChild with #localvariable as shown here, as mentioned in here
<textarea #someVar id="tasknote"
name="tasknote"
[(ngModel)]="taskNote"
placeholder="{{ notePlaceholder }}"
style="background-color: pink"
(blur)="updateNote() ; noteEditMode = false " (click)="noteEditMode = false"> {{ todo.note }}
</textarea>
import {ElementRef,Renderer2} from '@angular/core';
@ViewChild('someVar') el:ElementRef;
constructor(private rd: Renderer2) {}
ngAfterViewInit() {
console.log(this.rd);
this.el.nativeElement.focus(); //<<<=====same as oldest way
}
we also have had similar problems (we're behind a corporate proxy). changing to yarn at least on our jenkins builds made a huge difference.
there are some minor differences in the results between "npm install" and "yarn install" - but nothing that hurts us.
For reset all field in one form you can use event.target.reset()
const app = new Vue({_x000D_
el: '#app', _x000D_
data(){_x000D_
return{ _x000D_
name : null,_x000D_
lastname : null,_x000D_
address : null_x000D_
}_x000D_
},_x000D_
methods: {_x000D_
submitForm : function(event){_x000D_
event.preventDefault(),_x000D_
//process... _x000D_
event.target.reset()_x000D_
}_x000D_
}_x000D_
_x000D_
});
_x000D_
form input[type=text]{border-radius:5px; padding:6px; border:1px solid #ddd}_x000D_
form input[type=submit]{border-radius:5px; padding:8px; background:#060; color:#fff; cursor:pointer; border:none}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.6/vue.js"></script>_x000D_
<div id="app">_x000D_
<form id="todo-field" v-on:submit="submitForm">_x000D_
<input type="text" v-model="name"><br><br>_x000D_
<input type="text" v-model="lastname"><br><br>_x000D_
<input type="text" v-model="address"><br><br>_x000D_
<input type="submit" value="Send"><br>_x000D_
</form>_x000D_
</div>
_x000D_
just Add:
<button disabled={this.input.value?"true":""} className="add-item__button" onClick={this.add.bind(this)}>Add</button>
Template driven method
#receiverInput="ngModel" (blur)="receiverInput.control.setValue('')"
There are 3 ways to pass data from Parent to Children
Through Children Router Resolver if you have to receive different data
this.data = this.route.snaphsot.data['dataFromResolver'];
Through Parent Router Resolver if your have to receive the same data from parent
this.data = this.route.parent.snaphsot.data['dataFromResolver'];
Note1: You can read about resolver here. There is also an example of resolver and how to register the resolver into the module and then retrieve data from resolver into the component. The resolver registration is the same on the parent and child.
Note2: You can read about ActivatedRoute here to be able to get data from router
Update February 2020
Since this answer got a lot of traction, I thought it would be best to update it with newer Angular optimizations:
ng build --prod --build-optimizer
is a good option for people using less than Angular v5. For newer versions, this is done by default with ng build --prod
Some claims that using AOT compilation can reduce the vendor bundle size to 250kb. However, in BlackHoleGalaxy's example, he uses AOT compilation and is still left with a vendor bundle size of 2.75MB with ng build --prod --aot
, 10x larger than the supposed 250kb. This is not out of the norm for angular2 applications, even if you are using v4.0. 2.75MB is still too large for anyone who really cares about performance, especially on a mobile device.
There are a few things you can do to help the performance of your application:
1) AOT & Tree Shaking (angular-cli does this out of the box). With Angular 9 AOT is by default on prod and dev environment.
2) Using Angular Universal A.K.A. server-side rendering (not in cli)
3) Web Workers (again, not in cli, but a very requested feature)
see: https://github.com/angular/angular-cli/issues/2305
4) Service Workers
see: https://github.com/angular/angular-cli/issues/4006
You may not need all of these in a single application, but these are some of the options that are currently present for optimizing Angular performance. I believe/hope Google is aware of the out of the box shortcomings in terms of performance and plans to improve this in the future.
Here is a reference that talks more in depth about some of the concepts i mentioned above:
https://medium.com/@areai51/the-4-stages-of-perf-tuning-for-your-angular2-app-922ce5c1b294
JJB's answer got me on the right track, but the upgrade didn't go very smoothly. My process is detailed below. Hopefully the process becomes easier in the future and JJB's answer can be used or something even more straightforward.
I have followed the steps captured in JJB's answer to update the angular-cli precisely. However, after running npm install
angular-cli was broken. Even trying to do ng version
would produce an error. So I couldn't do the ng init
command. See error below:
$ ng init
core_1.Version is not a constructor
TypeError: core_1.Version is not a constructor
at Object.<anonymous> (C:\_git\my-project\code\src\main\frontend\node_modules\@angular\compiler-cli\src\version.js:18:19)
at Module._compile (module.js:556:32)
at Object.Module._extensions..js (module.js:565:10)
at Module.load (module.js:473:32)
...
To be able to use any angular-cli commands, I had to update my package.json file by hand and bump the @angular dependencies to 2.4.1, then do another npm install
.
After this I was able to do ng init
. I updated my configuration files, but none of my app/* files. When this was done, I was still getting errors. The first one is detailed below, the second was the same type of error but in a different file.
ERROR in Error encountered resolving symbol values statically. Function calls are not supported. Consider replacing the function or lambda with a reference to an exported function (position 62:9 in the original .ts file), resolving symbol AppModule in C:/_git/my-project/code/src/main/frontend/src/app/app.module.ts
This error is tied to the following factory provider in my AppModule
{ provide: Http, useFactory:
(backend: XHRBackend, options: RequestOptions, router: Router, navigationService: NavigationService, errorService: ErrorService) => {
return new HttpRerouteProvider(backend, options, router, navigationService, errorService);
}, deps: [XHRBackend, RequestOptions, Router, NavigationService, ErrorService]
}
To address this error, I had use an exported function and made the following change to the provider.
{
provide: Http,
useFactory: httpFactory,
deps: [XHRBackend, RequestOptions, Router, NavigationService, ErrorService]
}
... // elsewhere in AppModule
export function httpFactory(backend: XHRBackend,
options: RequestOptions,
router: Router,
navigationService: NavigationService,
errorService: ErrorService) {
return new HttpRerouteProvider(backend, options, router, navigationService, errorService);
}
To summarize what I understand to be the most important details, the following changes were required:
Update angular-cli version using the steps detailed in JJB's answer (and on their github page).
Updating @angular version by hand, 2.0.0 did not seem to be supported by angular-cli version 1.0.0-beta.24
With the assistance of angular-cli and the ng init
command, I updated my configuration files. I think the critical changes were to angular-cli.json and package.json. See configuration file changes at the bottom.
Make code changes to export functions before I reference them, as captured in the solution details.
angular-cli.json changes
{
"project": {
"version": "1.0.0-beta.16",
"name": "frontend"
},
"apps": [
{
"root": "src",
"outDir": "dist",
"assets": "assets",
...
changed to...
{
"project": {
"version": "1.0.0-beta.24",
"name": "frontend"
},
"apps": [
{
"root": "src",
"outDir": "dist",
"assets": [
"assets",
"favicon.ico"
],
...
My package.json looks like this after a manual merge that considers the versions used by ng-init. Note my angular version is not 2.4.1, but the change I was after was component inheritance which was introduced in 2.3, so I was fine with these versions. The original package.json is in the question.
{
"name": "frontend",
"version": "0.0.0",
"license": "MIT",
"angular-cli": {},
"scripts": {
"ng": "ng",
"start": "ng serve",
"lint": "tslint \"src/**/*.ts\"",
"test": "ng test",
"pree2e": "webdriver-manager update --standalone false --gecko false",
"e2e": "protractor",
"build": "ng build",
"buildProd": "ng build --env=prod"
},
"private": true,
"dependencies": {
"@angular/common": "^2.3.1",
"@angular/compiler": "^2.3.1",
"@angular/core": "^2.3.1",
"@angular/forms": "^2.3.1",
"@angular/http": "^2.3.1",
"@angular/platform-browser": "^2.3.1",
"@angular/platform-browser-dynamic": "^2.3.1",
"@angular/router": "^3.3.1",
"@angular/material": "^2.0.0-beta.1",
"@types/google-libphonenumber": "^7.4.8",
"angular2-datatable": "^0.4.2",
"apollo-client": "^0.4.22",
"core-js": "^2.4.1",
"rxjs": "^5.0.1",
"ts-helpers": "^1.1.1",
"zone.js": "^0.7.2",
"google-libphonenumber": "^2.0.4",
"graphql-tag": "^0.1.15",
"hammerjs": "^2.0.8",
"ng2-bootstrap": "^1.1.16"
},
"devDependencies": {
"@types/hammerjs": "^2.0.33",
"@angular/compiler-cli": "^2.3.1",
"@types/jasmine": "2.5.38",
"@types/lodash": "^4.14.39",
"@types/node": "^6.0.42",
"angular-cli": "1.0.0-beta.24",
"codelyzer": "~2.0.0-beta.1",
"jasmine-core": "2.5.2",
"jasmine-spec-reporter": "2.5.0",
"karma": "1.2.0",
"karma-chrome-launcher": "^2.0.0",
"karma-cli": "^1.0.1",
"karma-jasmine": "^1.0.2",
"karma-remap-istanbul": "^0.2.1",
"protractor": "~4.0.13",
"ts-node": "1.2.1",
"tslint": "^4.0.2",
"typescript": "~2.0.3",
"typings": "1.4.0"
}
}
A person might get this while working with factory functions, so I can confirm this is valid syntax:
$user = factory(User::class, 1)->create()->first();
You might see the collection instance error if you do something like:
$user = factory(User::class, 1)->create()->id;
so change it to:
$user = factory(User::class, 1)->create()->first()->id;
I needed to delete an Angular 6 directive whose spec file was erroneous. Even after deleting the offending files, removing all references to it and rebuilding the app, TS was still reporting the same error. What worked for me was restarting Visual Studio - this cleared the error and all traces of the old unwanted directive.
I have implemented CardView for react-native with elevation, that support android(All version) and iOS. Let me know is it help you or not. https://github.com/Kishanjvaghela/react-native-cardview
import CardView from 'react-native-cardview'
<CardView
cardElevation={2}
cardMaxElevation={2}
cornerRadius={5}>
<Text>
Elevation 0
</Text>
</CardView>
You can't change the type of an existing property.
You can add a property:
interface A {
newProperty: any;
}
But changing a type of existing one:
interface A {
property: any;
}
Results in an error:
Subsequent variable declarations must have the same type. Variable 'property' must be of type 'number', but here has type 'any'
You can of course have your own interface which extends an existing one. In that case, you can override a type only to a compatible type, for example:
interface A {
x: string | number;
}
interface B extends A {
x: number;
}
By the way, you probably should avoid using Object
as a type, instead use the type any
.
In the docs for the any
type it states:
The any type is a powerful way to work with existing JavaScript, allowing you to gradually opt-in and opt-out of type-checking during compilation. You might expect Object to play a similar role, as it does in other languages. But variables of type Object only allow you to assign any value to them - you can’t call arbitrary methods on them, even ones that actually exist:
let notSure: any = 4;
notSure.ifItExists(); // okay, ifItExists might exist at runtime
notSure.toFixed(); // okay, toFixed exists (but the compiler doesn't check)
let prettySure: Object = 4;
prettySure.toFixed(); // Error: Property 'toFixed' doesn't exist on type 'Object'.
That's because abc
is undefined at the moment of the template rendering. You can use safe navigation operator (?
) to "protect" template until HTTP call is completed:
{{abc?.xyz?.name}}
You can read more about safe navigation operator here.
Update:
Safe navigation operator can't be used in arrays, you will have to take advantage of NgIf
directive to overcome this problem:
<div *ngIf="arr && arr.length > 0">
{{arr[0].name}}
</div>
Read more about NgIf
directive here.
If you are behind a company proxy and on Mac, just make sure your http/https checkboxes are checked and applied.
The best solution would be to do these steps :
Run the project again, login into h2 and delete the table called "schema_version".
drop table schema_version;
Now make V2__create_shipwreck.sql file with ddl and rerun the project again.
Do remember this, add version 4.1.2 for flyway-core in pom.xml like
<dependency>
<groupId>org.flywaydb</groupId>
<artifactId>flyway-core</artifactId>
<version>4.1.2</version>
</dependency>
It should work now. Hope this will help.
To communicate a child component with another child component I've made a method in parent which calls a method in a child with:
this.$refs.childMethod()
And from the another child I've called the root method:
this.$root.theRootMethod()
It worked for me.
If the global variable should not be written to by anything, including Vuejs, you can use Object.freeze
to freeze your object. Adding it to Vue's viewmodel won't unfreeze it.
Another option is to provide Vuejs with a frozen copy of the object, if the object is intended to be written globally but just not by Vue: var frozenCopy = Object.freeze(Object.assign({}, globalObject))
If using reactive forms, you can also disable the entire form or any sub-set of controls in a FormGroup with myFormGroup.disable()
.
From the documentation:
/is
Includes the same files./it
Includes "tweaked" files.
"Same files" means files that are identical (name, size, times, attributes). "Tweaked files" means files that have the same name, size, and times, but different attributes.
robocopy src dst sample.txt /is # copy if attributes are equal
robocopy src dst sample.txt /it # copy if attributes differ
robocopy src dst sample.txt /is /it # copy irrespective of attributes
This answer on Super User has a good explanation of what kind of files the selection parameters match.
With that said, I could reproduce the behavior you describe, but from my understanding of the documentation and the output robocopy
generated in my tests I would consider this a bug.
PS C:\temp> New-Item src -Type Directory >$null PS C:\temp> New-Item dst -Type Directory >$null PS C:\temp> New-Item src\sample.txt -Type File -Value "test001" >$null PS C:\temp> New-Item dst\sample.txt -Type File -Value "test002" >$null PS C:\temp> Set-ItemProperty src\sample.txt -Name LastWriteTime -Value "2016/1/1 15:00:00" PS C:\temp> Set-ItemProperty dst\sample.txt -Name LastWriteTime -Value "2016/1/1 15:00:00" PS C:\temp> robocopy src dst sample.txt /is /it /copyall /mir ... Options : /S /E /COPYALL /PURGE /MIR /IS /IT /R:1000000 /W:30 ------------------------------------------------------------------------------ 1 C:\temp\src\ Modified 7 sample.txt ------------------------------------------------------------------------------ Total Copied Skipped Mismatch FAILED Extras Dirs : 1 0 0 0 0 0 Files : 1 1 0 0 0 0 Bytes : 7 7 0 0 0 0 ... PS C:\temp> robocopy src dst sample.txt /is /it /copyall /mir ... Options : /S /E /COPYALL /PURGE /MIR /IS /IT /R:1000000 /W:30 ------------------------------------------------------------------------------ 1 C:\temp\src\ Same 7 sample.txt ------------------------------------------------------------------------------ Total Copied Skipped Mismatch FAILED Extras Dirs : 1 0 0 0 0 0 Files : 1 1 0 0 0 0 Bytes : 7 7 0 0 0 0 ... PS C:\temp> Get-Content .\src\sample.txt test001 PS C:\temp> Get-Content .\dst\sample.txt test002
The file is listed as copied, and since it becomes a same file after the first robocopy
run at least the times are synced. However, even though seven bytes have been copied according to the output no data was actually written to the destination file in both cases despite the data flag being set (via /copyall
). The behavior also doesn't change if the data flag is set explicitly (/copy:d
).
I had to modify the last write time to get robocopy
to actually synchronize the data.
PS C:\temp> Set-ItemProperty src\sample.txt -Name LastWriteTime -Value (Get-Date) PS C:\temp> robocopy src dst sample.txt /is /it /copyall /mir ... Options : /S /E /COPYALL /PURGE /MIR /IS /IT /R:1000000 /W:30 ------------------------------------------------------------------------------ 1 C:\temp\src\ 100% Newer 7 sample.txt ------------------------------------------------------------------------------ Total Copied Skipped Mismatch FAILED Extras Dirs : 1 0 0 0 0 0 Files : 1 1 0 0 0 0 Bytes : 7 7 0 0 0 0 ... PS C:\temp> Get-Content .\dst\sample.txt test001
An admittedly ugly workaround would be to change the last write time of same/tweaked files to force robocopy
to copy the data:
& robocopy src dst /is /it /l /ndl /njh /njs /ns /nc |
Where-Object { $_.Trim() } |
ForEach-Object {
$f = Get-Item $_
$f.LastWriteTime = $f.LastWriteTime.AddSeconds(1)
}
& robocopy src dst /copyall /mir
Switching to xcopy
is probably your best option:
& xcopy src dst /k/r/e/i/s/c/h/f/o/x/y
This is when you're working with a FileList
Object:
onChange={(event: React.ChangeEvent<HTMLInputElement>): void => {
const fileListObj: FileList | null = event.target.files;
if (Object.keys(fileListObj as Object).length > 3) {
alert('Only three images pleaseeeee :)');
} else {
// Do something
}
return;
}}
There is another answer here that also fits the authors request: 'compile-time' way to get all property names defined interface
If you use the plugin ts-transformer-keys and an Interface to your class you can get all the keys for the class.
But if you're using Angular or React then in some scenarios there is additional configuration necessary (webpack and typescript) to get it working: https://github.com/kimamula/ts-transformer-keys/issues/4
As you set application/x-www-form-urlencoded
as content type so data sent must be like this format.
String urlParameters = "param1=data1¶m2=data2¶m3=data3";
Sending part now is quite straightforward.
byte[] postData = urlParameters.getBytes( StandardCharsets.UTF_8 );
int postDataLength = postData.length;
String request = "<Url here>";
URL url = new URL( request );
HttpURLConnection conn= (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setInstanceFollowRedirects(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
conn.setRequestProperty("charset", "utf-8");
conn.setRequestProperty("Content-Length", Integer.toString(postDataLength ));
conn.setUseCaches(false);
try(DataOutputStream wr = new DataOutputStream(conn.getOutputStream())) {
wr.write( postData );
}
Or you can create a generic method to build key value pattern which is required for application/x-www-form-urlencoded
.
private String getDataString(HashMap<String, String> params) throws UnsupportedEncodingException{
StringBuilder result = new StringBuilder();
boolean first = true;
for(Map.Entry<String, String> entry : params.entrySet()){
if (first)
first = false;
else
result.append("&");
result.append(URLEncoder.encode(entry.getKey(), "UTF-8"));
result.append("=");
result.append(URLEncoder.encode(entry.getValue(), "UTF-8"));
}
return result.toString();
}
Filters are a functionality provided by Vue components that let you apply formatting and transformations to any part of your template dynamic data.
They don’t change a component’s data or anything, but they only affect the output.
Say you are printing a name:
new Vue({_x000D_
el: '#container',_x000D_
data() {_x000D_
return {_x000D_
name: 'Maria',_x000D_
lastname: 'Silva'_x000D_
}_x000D_
},_x000D_
filters: {_x000D_
prepend: (name, lastname, prefix) => {_x000D_
return `${prefix} ${name} ${lastname}`_x000D_
}_x000D_
}_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>_x000D_
<div id="container">_x000D_
<p>{{ name, lastname | prepend('Hello') }}!</p>_x000D_
</div>
_x000D_
Notice the syntax to apply a filter, which is | filterName. If you're familiar with Unix, that's the Unix pipe operator, which is used to pass the output of an operation as an input to the next one.
The filters property of the component is an object. A single filter is a function that accepts a value and returns another value.
The returned value is the one that’s actually printed in the Vue.js template.
Here is a shorthand that webpack will use so you don't have to use require.context
.
HTML:
<div class="col-lg-2" v-for="pic in pics">
<img :src="getImgUrl(pic)" v-bind:alt="pic">
</div>
Vue Method:
getImgUrl(pic) {
return require('../assets/'+pic)
}
And I find that the first 2 paragraphs in here explain why this works? well.
Please note that it's a good idea to put your pet pictures inside a subdirectory, instead of lobbing it in with all your other image assets. Like so: ./assets/pets/
I too faced error which says
"Access is denied. In the default daemon configuration on Windows, the docker client must be run elevated to connect. This error may also indicate that the docker daemon is not running."
Resolved this by running "powershell" in administrator mode.
This solution will help those who uses two users on one windows machine
Note that you can only read a stream once, so in some cases, you may need to clone the response in order to repeatedly read it:
fetch('example.json')
.then(res=>res.clone().json())
.then( json => console.log(json))
fetch('url_that_returns_text')
.then(res=>res.clone().text())
.then( text => console.log(text))
In ReactJS, I check in the constructor if the variables are null, if they are I treat it like an exception and manage the exception appropriately. If the variables are not null, code carries on and compiler does not complain anymore after that point:
private variable1: any;
private variable2: any;
constructor(props: IProps) {
super(props);
// i.e. here I am trying to access an HTML element
// which might be null if there is a typo in the name
this.variable1 = document.querySelector('element1');
this.variable2 = document.querySelector('element2');
// check if objects are null
if(!this.variable1 || !this.variable2) {
// Manage the 'exception', show the user a message, etc.
} else {
// Interpreter should not complain from this point on
// in any part of the file
this.variable1.disabled = true; // i.e. this line should not show the error
}
You just need to wrap object in ()
var arr = [{_x000D_
id: 1,_x000D_
name: 'bill'_x000D_
}, {_x000D_
id: 2,_x000D_
name: 'ted'_x000D_
}]_x000D_
_x000D_
var result = arr.map(person => ({ value: person.id, text: person.name }));_x000D_
console.log(result)
_x000D_
Custom Module Needs common module
import { CommonModule } from "@angular/common";
@NgModule({
imports: [
CommonModule
]
})
You can approach it from either an "allow list" or a "block list" way:
// Block list
// Remove the values you don't want
var result = _.omit(credentials, ['age']);
// Allow list
// Only allow certain values
var result = _.pick(credentials, ['fname', 'lname']);
If it's reusable business logic, you can partial it out as well:
// Partial out a "block list" version
var clean = _.partial(_.omit, _, ['age']);
// and later
var result = clean(credentials);
A similar approach can be achieved without Lodash:
const transform = (obj, predicate) => {
return Object.keys(obj).reduce((memo, key) => {
if(predicate(obj[key], key)) {
memo[key] = obj[key]
}
return memo
}, {})
}
const omit = (obj, items) => transform(obj, (value, key) => !items.includes(key))
const pick = (obj, items) => transform(obj, (value, key) => items.includes(key))
// Partials
// Lazy clean
const cleanL = (obj) => omit(obj, ['age'])
// Guarded clean
const cleanG = (obj) => pick(obj, ['fname', 'lname'])
// "App"
const credentials = {
fname:"xyz",
lname:"abc",
age:23
}
const omitted = omit(credentials, ['age'])
const picked = pick(credentials, ['age'])
const cleanedL = cleanL(credentials)
const cleanedG = cleanG(credentials)
There are two problems with your code:
LocalDateTime
does not support timezone. Given below is an overview of java.time types and you can see that the type which matches with your date-time string, 2016-12-01T23:00:00+00:00
is OffsetDateTime
because it has a zone offset of +00:00
.
Change your declaration as follows:
private OffsetDateTime startDate;
There are two problems with the format:
y
(year-of-era ) instead of Y
(week-based-year). Check this discussion to learn more about it. In fact, I recommend you use u
(year) instead of y
(year-of-era ). Check this answer for more details on it.XXX
or ZZZZZ
for the offset part i.e. your format should be uuuu-MM-dd'T'HH:m:ssXXX
.Check the documentation page of DateTimeFormatter
for more details about these symbols/formats.
Demo:
import java.time.OffsetDateTime;
import java.time.format.DateTimeFormatter;
public class Main {
public static void main(String[] args) {
String strDateTime = "2019-10-21T13:00:00+02:00";
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("uuuu-MM-dd'T'HH:m:ssXXX");
OffsetDateTime odt = OffsetDateTime.parse(strDateTime, dtf);
System.out.println(odt);
}
}
Output:
2019-10-21T13:00+02:00
Learn more about the modern date-time API from Trail: Date Time.
I encountered this when setting up moodle. I added the following lines in the php.ini file.
zend_extension=C:\xampp\php\ext\php_opcache.dll
[opcache]
opcache.enable = 1
opcache.memory_consumption = 128
opcache.max_accelerated_files = 4000
opcache.revalidate_freq = 60
; Required for Moodle
opcache.use_cwd = 1
opcache.validate_timestamps = 1
opcache.save_comments = 1
opcache.enable_file_override = 0
; If something does not work in Moodle
;opcache.revalidate_path = 1 ; May fix problems with include paths
;opcache.mmap_base = 0x20000000 ; (Windows only) fix OPcache crashes with event id 487
; Experimental for Moodle 2.6 and later
;opcache.fast_shutdown = 1
;opcache.enable_cli = 1 ; Speeds up CLI cron
;opcache.load_comments = 0 ; May lower memory use, might not be compatible with add-ons and other apps
extension=C:\xampp\php\ext\php_intl.dll
[intl]
intl.default_locale = en_utf8
intl.error_level = E_WARNING
All standard implementations of java.util.List
already implement java.io.Serializable
.
So even though java.util.List
itself is not a subtype of java.io.Serializable
, it should be safe to cast the list to Serializable
, as long as you know it's one of the standard implementations like ArrayList
or LinkedList
.
If you're not sure, then copy the list first (using something like new ArrayList(myList)
), then you know it's serializable.
For a Mac it is the following combination: Cmd + /
You can use array_slice as:
$sliced_array = array_slice($array,0,$N);
As of now (Jan 2017 / Angular > 2.0) you can use the following:
changeBackground(): any {
return { 'background-color': this.color };
}
and
<div class="circle" [ngStyle]="changeBackground()">
<!-- <content></content> --> <!-- content is now deprecated -->
<ng-content><ng-content> <!-- Use ng-content instead -->
</div>
The shortest way is probably like this:
<div class="circle" [ngStyle]="{ 'background-color': color }">
<!-- <content></content> --> <!-- content is now deprecated -->
<ng-content><ng-content> <!-- Use ng-content instead -->
</div>
del
statement does not delete an instance, it merely deletes a name.When you do del i
, you are deleting just the name i - but the instance is still bound to some other name, so it won't be Garbage-Collected.
If you want to release memory, your dataframes has to be Garbage-Collected, i.e. delete all references to them.
If you created your dateframes dynamically to list, then removing that list will trigger Garbage Collection.
>>> lst = [pd.DataFrame(), pd.DataFrame(), pd.DataFrame()]
>>> del lst # memory is released
>>> a, b, c = pd.DataFrame(), pd.DataFrame(), pd.DataFrame()
>>> lst = [a, b, c]
>>> del a, b, c # dfs still in list
>>> del lst # memory release now
decimal d = 2;
int i = (int) d;
This should work just fine.
I found this question after seeing the 'more than one device' error, with 2 offline phones showing:
C:\Program Files (x86)\Android\android-sdk\android-tools>adb devices
List of devices attached
SH436WM01785 offline
SH436WM01785 offline
SH436WM01785 sideload
If you only have one device connected, run the following commands to get rid of the offline connections:
adb kill-server
adb devices
You don't have JSON. You have a JavaScript data structure consisting of objects, an array, some strings and some numbers.
Use JSON.stringify(object)
to turn it into (a string of) JSON text.
Another way to assign a row number in a query is to use the DCount
function.
SELECT *, DCount("[ID]","[mytable]","[ID]<=" & [ID]) AS row_id
FROM [mytable]
WHERE row_id=15
Window -> Preferences -> Java -> Editor -> content assist > enter
".abcdefghijklmnopqrstuvwxyz"
in the Auto activation triggers.
It will allow you to complete your code.
I use year 2000 instead of Epoch Time in my calculus. Working with smaller numbers is easy to store and transport and is JSON friendly.
Year 2000 was at second 946684800 of epoch time.
Year 2000 was at second 63082281600 from 1-st of Jan 0001.
DateTime.UtcNow Ticks starts from 1-st of Jan 0001
Seconds from year 2000:
DateTime.UtcNow.Ticks/10000000-63082281600
Seconds from Unix Time:
DateTime.UtcNow.Ticks/10000000-946684800
For example year 2020 is:
var year2020 = (new DateTime()).AddYears(2019).Ticks; // Because DateTime starts already at year 1
637134336000000000 Ticks since 1-st of Jan 0001
63713433600 Seconds since 1-st of Jan 0001
1577836800 Seconds since Epoch Time
631152000 Seconds since year 2000
References:
Epoch Time converter: https://www.epochconverter.com
Year 1 converter: https://www.epochconverter.com/seconds-days-since-y0
LINQ defines an extension method that is perfect for solving this exact problem:
using System.Linq;
...
bool has = list.Any(cus => cus.FirstName == "John");
make sure you reference System.Core.dll, that's where LINQ lives.
Update: in Rails 3.0.9: env method defined in railties/lib/rails.rb
Unfortuantely, as div
elements can't be direct descendants of table
elements, the way I know to do this is to apply the CSS rules you want to each tr
element that you want to apply it to.
<table>
<tr><th>Test Table</th><tr>
<tr><td>123456789</td><tr>
<tr style="display: none; other-property: value;"><td>123456789</td><tr>
<tr style="display: none; other-property: value;"><td>123456789</td><tr>
<tr><td>123456789</td><tr>
<tr><td>123456789</td><tr>
</table>
If you have more than one CSS rule to apply to the rows in question, give the applicable rows a class
instead and offload the rules to external CSS.
<table>
<tr><th>Test Table</th><tr>
<tr><td>123456789</td><tr>
<tr class="something"><td>123456789</td><tr>
<tr class="something"><td>123456789</td><tr>
<tr><td>123456789</td><tr>
<tr><td>123456789</td><tr>
</table>
The error indicates that the two tables have the 1 or more column names that have the same column name.
Anyone with the same error who doesn't want to provide a suffix can rename the columns instead. Also make sure the index of both DataFrames match in type and value if you don't want to provide the on='mukey'
setting.
# rename example
df_a = df_a.rename(columns={'a_old': 'a_new', 'a2_old': 'a2_new'})
# set the index
df_a = df_a.set_index(['mukus'])
df_b = df_b.set_index(['mukus'])
df_a.join(df_b)
color
and fill
are separate aesthetics. Since you want to modify the color you need to use the corresponding scale:
d + scale_color_manual(values=c("#CC6666", "#9999CC"))
is what you want.
Since the solution wasn't really mentioned for the server side:
One has to set things like this (example from apache), this isn't the best option as it allows in everything, but after you see your server working correctly you can easily change the settings.
Header set Access-Control-Allow-Origin "*"
Header set X-Frame-Options "allow-from *"
your folder name is scripts..
and you are Referencing it like ../script/login.js
Also make sure that script folder is in your project directory
Thanks
I've been using the Output("doc.pdf", "I");
and it doesn't work, I'm always asked for saving the file.
I took a look in documentation and found that
I send the file inline to the browser (default). The plug-in is used if available. The name given by name is used when one selects the "Save as" option on the link generating the PDF. http://www.tcpdf.org/doc/classTCPDF.html#a3d6dcb62298ec9d42e9125ee2f5b23a1
Then I think you have to use a plugin to print it, otherwise it is going to be downloaded.
I think os.environ.copy()
is better if you don't intend to modify the os.environ for the current process:
import subprocess, os
my_env = os.environ.copy()
my_env["PATH"] = "/usr/sbin:/sbin:" + my_env["PATH"]
subprocess.Popen(my_command, env=my_env)
public class customer
{
public void InsertCustomer(string name,int age,string address)
{
// create and open a connection object
using(SqlConnection Con=DbConnection.GetDbConnection())
{
// 1. create a command object identifying the stored procedure
SqlCommand cmd = new SqlCommand("spInsertCustomerData",Con);
// 2. set the command object so it knows to execute a stored procedure
cmd.CommandType = CommandType.StoredProcedure;
SqlParameter paramName = new SqlParameter();
paramName.ParameterName = "@nvcname";
paramName.Value = name;
cmd.Parameters.Add(paramName);
SqlParameter paramAge = new SqlParameter();
paramAge.ParameterName = "@inage";
paramAge.Value = age;
cmd.Parameters.Add(paramAge);
SqlParameter paramAddress = new SqlParameter();
paramAddress.ParameterName = "@nvcaddress";
paramAddress.Value = address;
cmd.Parameters.Add(paramAddress);
cmd.ExecuteNonQuery();
}
}
}
NOTE: answer is dependent upon jQuery 1.6.1+
$('#selectBox :nth-child(4)').prop('selected', true); // To select via index
$('#selectBox option:eq(3)').prop('selected', true); // To select via value
Thanks for the comment, .get
won't work since it returns a DOM element, not a jQuery one. Keep in mind the .eq
function can be used outside of the selector as well if you prefer.
$('#selectBox option').eq(3).prop('selected', true);
You can also be more terse/readable if you want to use the value, instead of relying on selecting a specific index:
$("#selectBox").val("3");
Note: .val(3)
works as well for this example, but non-numeric values must be strings, so I chose a string for consistency.
(e.g. <option value="hello">Number3</option>
requires you to use .val("hello")
)
I had the same exact problem and found the solution through the use of larachat.
Here's how to fix it you need to have your homestead.yaml file settings correct. If you want to know how its done follow Jeffery Way tutorial on homestead 2.0 https://laracasts.com/lessons/say-hello-to-laravel-homestead-two.
Now to fix Input not specified
issue you need to ssh into homestead box and type
serve domain.app /home/vagrant/Code/path/to/public/directory
this will generate a serve script for nginx. You will need to do this everytime you switch projects.
He also discussed what I explained in this series https://laracasts.com/series/laravel-5-fundamentals/
If you want to switch the jdk on a regular basis (or update to a new one once it is released), it's very conveniant to use sdkman.
You can additional tools like maven with sdkman, too.
in ruby for constantly using, add follow:
module Selenium
module WebDriver
class Element
def select(value)
self.find_elements(:tag_name => "option").find do |option|
if option.text == value
option.click
return
end
end
end
end
end
and you will be able to select value:
browser.find_element(:xpath, ".//xpath").select("Value")
You might also consider using the open source SpringSandwich library which lets you directly annotate in your Spring Boot controllers which interceptors to apply, much in the same way you annotate your url routes.
That way, no typo-prone Strings floating around -- SpringSandwich's method and class annotations easily survive refactoring and make it clear what's being applied where. (Disclosure: I'm the author).
You should not create a new Random
instance in a loop. Try something like:
var rnd = new Random();
for(int i = 0; i < 100; ++i)
Console.WriteLine(rnd.Next(1, 100));
The sequence of random numbers generated by a single Random
instance is supposed to be uniformly distributed. By creating a new Random
instance for every random number in quick successions, you are likely to seed them with identical values and have them generate identical random numbers. Of course, in this case, the generated sequence will be far from uniform distribution.
For the sake of completeness, if you really need to reseed a Random
, you'll create a new instance of Random
with the new seed:
rnd = new Random(newSeed);
If you take a look at the result of valeur <= 0.6
, you can see what’s causing this ambiguity:
>>> valeur <= 0.6
array([ True, False, False, False], dtype=bool)
So the result is another array that has in this case 4 boolean values. Now what should the result be? Should the condition be true when one value is true? Should the condition be true only when all values are true?
That’s exactly what numpy.any
and numpy.all
do. The former requires at least one true value, the latter requires that all values are true:
>>> np.any(valeur <= 0.6)
True
>>> np.all(valeur <= 0.6)
False
man ssh
gives me this options would could be useful.
-i identity_file Selects a file from which the identity (private key) for RSA or DSA authentication is read. The default is ~/.ssh/identity for protocol version 1, and ~/.ssh/id_rsa and ~/.ssh/id_dsa for pro- tocol version 2. Identity files may also be specified on a per- host basis in the configuration file. It is possible to have multiple -i options (and multiple identities specified in config- uration files).
So you could create an alias in your bash config with something like
alias ssh="ssh -i /path/to/private_key"
I haven't looked into a ssh configuration file, but like the -i
option this too could be aliased
-F configfile Specifies an alternative per-user configuration file. If a configuration file is given on the command line, the system-wide configuration file (/etc/ssh/ssh_config) will be ignored. The default for the per-user configuration file is ~/.ssh/config.
Keytool comes with your Java library. So you have to execute the Keytool command from your /Library/Java/JavaVirtualMachines/jdk1.8.0_171.jdk/Contents/Home/jre/bin directory. Or you can add JAVA_HOME to your environmental variables (Windows) or ~/.bash_profile (Linux)
PARTITION BY
segregate sets, this enables you to be able to work(ROW_NUMBER(),COUNT(),SUM(),etc) on related set independently.
In your query, the related set comprised of rows with similar cdt.country_code, cdt.account, cdt.currency. When you partition on those columns and you apply ROW_NUMBER on them. Those other columns on those combination/set will receive sequential number from ROW_NUMBER
But that query is funny, if your partition by some unique data and you put a row_number on it, it will just produce same number. It's like you do an ORDER BY on a partition that is guaranteed to be unique. Example, think of GUID as unique combination of cdt.country_code, cdt.account, cdt.currency
newid()
produces GUID, so what shall you expect by this expression?
select
hi,ho,
row_number() over(partition by newid() order by hi,ho)
from tbl;
...Right, all the partitioned(none was partitioned, every row is partitioned in their own row) rows' row_numbers are all set to 1
Basically, you should partition on non-unique columns. ORDER BY on OVER needed the PARTITION BY to have a non-unique combination, otherwise all row_numbers will become 1
An example, this is your data:
create table tbl(hi varchar, ho varchar);
insert into tbl values
('A','X'),
('A','Y'),
('A','Z'),
('B','W'),
('B','W'),
('C','L'),
('C','L');
Then this is analogous to your query:
select
hi,ho,
row_number() over(partition by hi,ho order by hi,ho)
from tbl;
What will be the output of that?
HI HO COLUMN_2
A X 1
A Y 1
A Z 1
B W 1
B W 2
C L 1
C L 2
You see thee combination of HI HO? The first three rows has unique combination, hence they are set to 1, the B rows has same W, hence different ROW_NUMBERS, likewise with HI C rows.
Now, why is the ORDER BY
needed there? If the previous developer merely want to put a row_number on similar data (e.g. HI B, all data are B-W, B-W), he can just do this:
select
hi,ho,
row_number() over(partition by hi,ho)
from tbl;
But alas, Oracle(and Sql Server too) doesn't allow partition with no ORDER BY
; whereas in Postgresql, ORDER BY
on PARTITION is optional: http://www.sqlfiddle.com/#!1/27821/1
select
hi,ho,
row_number() over(partition by hi,ho)
from tbl;
Your ORDER BY
on your partition look a bit redundant, not because of the previous developer's fault, some database just don't allow PARTITION
with no ORDER BY
, he might not able find a good candidate column to sort on. If both PARTITION BY columns and ORDER BY columns are the same just remove the ORDER BY, but since some database don't allow it, you can just do this:
SELECT cdt.*,
ROW_NUMBER ()
OVER (PARTITION BY cdt.country_code, cdt.account, cdt.currency
ORDER BY newid())
seq_no
FROM CUSTOMER_DETAILS cdt
You cannot find a good column to use for sorting similar data? You might as well sort on random, the partitioned data have the same values anyway. You can use GUID for example(you use newid()
for SQL Server). So that has the same output made by previous developer, it's unfortunate that some database doesn't allow PARTITION
with no ORDER BY
Though really, it eludes me and I cannot find a good reason to put a number on the same combinations (B-W, B-W in example above). It's giving the impression of database having redundant data. Somehow reminded me of this: How to get one unique record from the same list of records from table? No Unique constraint in the table
It really looks arcane seeing a PARTITION BY with same combination of columns with ORDER BY, can not easily infer the code's intent.
Live test: http://www.sqlfiddle.com/#!3/27821/6
But as dbaseman have noticed also, it's useless to partition and order on same columns.
You have a set of data like this:
create table tbl(hi varchar, ho varchar);
insert into tbl values
('A','X'),
('A','X'),
('A','X'),
('B','Y'),
('B','Y'),
('C','Z'),
('C','Z');
Then you PARTITION BY hi,ho; and then you ORDER BY hi,ho. There's no sense numbering similar data :-) http://www.sqlfiddle.com/#!3/29ab8/3
select
hi,ho,
row_number() over(partition by hi,ho order by hi,ho) as nr
from tbl;
Output:
HI HO ROW_QUERY_A
A X 1
A X 2
A X 3
B Y 1
B Y 2
C Z 1
C Z 2
See? Why need to put row numbers on same combination? What you will analyze on triple A,X, on double B,Y, on double C,Z? :-)
You just need to use PARTITION on non-unique column, then you sort on non-unique column(s)'s unique-ing column. Example will make it more clear:
create table tbl(hi varchar, ho varchar);
insert into tbl values
('A','D'),
('A','E'),
('A','F'),
('B','F'),
('B','E'),
('C','E'),
('C','D');
select
hi,ho,
row_number() over(partition by hi order by ho) as nr
from tbl;
PARTITION BY hi
operates on non unique column, then on each partitioned column, you order on its unique column(ho), ORDER BY ho
Output:
HI HO NR
A D 1
A E 2
A F 3
B E 1
B F 2
C D 1
C E 2
That data set makes more sense
Live test: http://www.sqlfiddle.com/#!3/d0b44/1
And this is similar to your query with same columns on both PARTITION BY and ORDER BY:
select
hi,ho,
row_number() over(partition by hi,ho order by hi,ho) as nr
from tbl;
And this is the ouput:
HI HO NR
A D 1
A E 1
A F 1
B E 1
B F 1
C D 1
C E 1
See? no sense?
Live test: http://www.sqlfiddle.com/#!3/d0b44/3
Finally this might be the right query:
SELECT cdt.*,
ROW_NUMBER ()
OVER (PARTITION BY cdt.country_code, cdt.account -- removed: cdt.currency
ORDER BY
-- removed: cdt.country_code, cdt.account,
cdt.currency) -- keep
seq_no
FROM CUSTOMER_DETAILS cdt
The SimpleDateFormat class allows you to parse a String
into a java.util.Date
object. Once you have the Date object, you can get the milliseconds since the epoch by calling Date.getTime()
.
The full example:
String myDate = "2014/10/29 18:10:45";
//creates a formatter that parses the date in the given format
SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
Date date = sdf.parse(myDate);
long timeInMillis = date.getTime();
Note that this gives you a long
and not a double, but I think that's probably what you intended. The documentation for the SimpleDateFormat
class has tons on information on how to set it up to parse different formats.
I know this question is pretty old but if someone like me comes here looking for an answer then this might help. I have been able to overcome the above error with this.
1) Remove the below piece of code from the plugin maven-surefire-plugin
<reuseForks>true</reuseForks>
<argLine>-Xmx2048m</argLine>
2) Add the below goal:
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
you can consider something like that:
define a style for textblock, or any other control you want to use to display your enum:
<Style x:Key="enumStyle" TargetType="{x:Type TextBlock}">
<Setter Property="Text" Value="<NULL>"/>
<Style.Triggers>
<Trigger Property="Tag">
<Trigger.Value>
<proj:YourEnum>Value1<proj:YourEnum>
</Trigger.Value>
<Setter Property="Text" Value="{DynamicResource yourFriendlyValue1}"/>
</Trigger>
<!-- add more triggers here to reflect your enum -->
</Style.Triggers>
</Style>
define your style for ComboBoxItem
<Style TargetType="{x:Type ComboBoxItem}">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<TextBlock Tag="{Binding}" Style="{StaticResource enumStyle}"/>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>
add a combobox and load it with your enum values:
<ComboBox SelectedValue="{Binding Path=your property goes here}" SelectedValuePath="Content">
<ComboBox.Items>
<ComboBoxItem>
<proj:YourEnum>Value1</proj:YourEnum>
</ComboBoxItem>
</ComboBox.Items>
</ComboBox>
if your enum is large, you can of course do the same in code, sparing a lot of typing. i like that approach, since it makes localization easy - you define all the templates once, and then, you only update your string resource files.
You may also want to try two backslashes (\\")
to escape the escape character.
the best way to calculate the equation is simplified. That is, find the maximum divisor between two numbers and divide:
ex.
1920:1080 maximum common divisor 120 = 16:9
1024:768 maximum common divisor 256 = 4:3
1280:768 maximum common divisor 256 = 5:3
may happen also some approaches
Try this
function test()
{
$("body").append("<input type='button' id='field' />");
}
Here is an answer from a bit of an abstract, graph theoretic angle:
Let's simplify the problem by only looking at (directed) dependency graphs between stateful objects.
An extremely simple answer can be illustrated by considering two limiting cases of dependency graphs:
The 1st limiting case: a cluster graphs .
A cluster graph is the most perfect realisation of a high cohesion and low coupling (given a set of cluster sizes) dependency graph.
The dependence between clusters is maximal (fully connected), and inter cluster dependence is minimal (zero).
This is an abstract illustration of the answer in one of the limiting cases.
The 2nd limiting case is a fully connected graph, where everything depends on everything.
Reality is somewhere in between, the closer to the cluster graph the better, in my humble understanding.
From another point of view: when looking at a directed dependency graph, ideally it should be acyclic, if not then cycles form the smallest clusters/components.
One step up/down the hierarchy corresponds to "one instance" of loose coupling, tight cohesion in a software but it is possible to view this loose coupling/tight cohesion principle as a repeating phenomena at different depths of an acyclic directed graph (or on one of its spanning tree's).
Such decomposition of a system into a hierarchy helps to beat exponential complexity (say each cluster has 10 elements). Then at 6 layers it's already 1 million objects:
10 clusters form 1 supercluster, 10 superclusters form 1 hypercluster and so on ... without the concept of tight cohesion, loose coupling, such a hierarchical architecture would not be possible.
So this might be the real importance of the story and not just the high cohesion low coupling within two layers only. The real importance becomes clear when considering higher level abstractions and their interactions.
NOTE: if you do multiple inserts with one statement mysqli::insert_id will not be correct.
The table:
create table xyz (id int(11) auto_increment, name varchar(255), primary key(id));
Now if you do:
insert into xyz (name) values('one'),('two'),('three');
The mysqli::insert_id will be 1 not 3.
To get the correct value do:
mysqli::insert_id + mysqli::affected_rows) - 1
This has been document but it is a bit obscure.
In my case here is what I did to cause the diverged message: I did git push
but then did git commit --amend
to add something to the commit message. Then I also did another commit.
So in my case that simply meant origin/master was out of date. Because I knew no-one else was touching origin/master, the fix was trivial: git push -f
(where -f
means force)
I had the same issue with Firefox. The solution was to set the proxy settings to "system proxy settings". Fiddler can only capture traffic that goes through its proxy server. Capturing was stopped because a few days ago I was tinkering with the Firefox proxy settings for another project.
It follows that using Chrome you should also check the browser proxy settings in case of problems with capturing traffic with Fiddler.
Since seangwright's solution (Edit 3) appears to be very useful, I also found it a pain to pack this feature into base component, and hint other project teammates to remember to call super() on ngOnDestroy to activate this feature.
This answer provide a way to set free from super call, and make "componentDestroyed$" a core of base component.
class BaseClass {
protected componentDestroyed$: Subject<void> = new Subject<void>();
constructor() {
/// wrap the ngOnDestroy to be an Observable. and set free from calling super() on ngOnDestroy.
let _$ = this.ngOnDestroy;
this.ngOnDestroy = () => {
this.componentDestroyed$.next();
this.componentDestroyed$.complete();
_$();
}
}
/// placeholder of ngOnDestroy. no need to do super() call of extended class.
ngOnDestroy() {}
}
And then you can use this feature freely for example:
@Component({
selector: 'my-thing',
templateUrl: './my-thing.component.html'
})
export class MyThingComponent extends BaseClass implements OnInit, OnDestroy {
constructor(
private myThingService: MyThingService,
) { super(); }
ngOnInit() {
this.myThingService.getThings()
.takeUntil(this.componentDestroyed$)
.subscribe(things => console.log(things));
}
/// optional. not a requirement to implement OnDestroy
ngOnDestroy() {
console.log('everything works as intended with or without super call');
}
}
This can be done like this. It worked fine for me. And also set the directory permissions to 777 or 775 if not set.
ob_clean();
$mpdf->Output('directory_name/pdf_file_name.pdf', 'F');
The -u flag is specifying that you want to link your local branch to the upstream branch. This will also create an upstream branch if one does not exist. None of these answers cover how i do it (in complete form) so here it is:
git push -u origin <your-local-branch-name>
So if your local branch name is coffee
git push -u origin coffee
If you have a very complex class with a lot of options of which only some combinations are valid, consider using a Builder. Works very well both codewise but also logically.
The Builder is a nested class with methods only designed to set fields, and then the ComplexClass constructor only takes such a Builder as an argument.
Edit: The ComplexClass constructor can ensure that the state in the Builder is valid. This is very hard to do if you just use setters on ComplexClass.
You've added an extra level of abstraction by calling the method with reflection. The reflection layer wraps any exception in an InvocationTargetException
, which lets you tell the difference between an exception actually caused by a failure in the reflection call (maybe your argument list wasn't valid, for example) and a failure within the method called.
Just unwrap the cause within the InvocationTargetException
and you'll get to the original one.
The answers given don't actually match your question, which implied a trailing number. Also, remember that you're getting a string back; if you actually need a number, cast the result:
item=item.replace('^.*\D(\d*)$', '$1');
if (!/^\d+$/.test(item)) throw 'parse error: number not found';
item=Number(item);
If you're dealing with numeric item ids on a web page, your code could also usefully accept an Element
, extracting the number from its id
(or its first parent with an id
); if you've an Event
handy, you can likely get the Element
from that, too.
You would use DATEDIFF
:
declare @start datetime
declare @end datetime
set @start = '2011-01-01'
set @end = '2012-01-01'
select DATEDIFF(d, @start, @end)
results = 365
so for your query:
SELECT dtCreated
, bActive
, dtLastPaymentAttempt
, dtLastUpdated
, dtLastVisit
, DATEDIFF(d, dtCreated, dtLastUpdated) as Difference
FROM Customers
WHERE (bActive = 'true')
AND (dtLastUpdated > CONVERT(DATETIME, '2012-01-0100:00:00', 102))
Technically, Kafka offers a huge superset of features when compared to the set of features offered by Rabbit MQ.
If the question is
Is Rabbit MQ technically better than Kafka?
then the answer is
No.
However, if the question is
Is Rabbit MQ better than Kafka from a business perspective?
then, the answer is
Probably 'Yes', in some business scenarios
Rabbit MQ can be better than Kafka, from a business perspective, for the following reasons:
Maintenance of legacy applications that depend on Rabbit MQ
Staff training cost and steep learning curve required for implementing Kafka
Infrastructure cost for Kafka is higher than that for Rabbit MQ.
Troubleshooting problems in Kafka implementation is difficult when compared to that in Rabbit MQ implementation.
A Rabbit MQ Developer can easily maintain and support applications that use Rabbit MQ.
The same is not true with Kafka. Experience with just Kafka development is not sufficient to maintain and support applications that use Kafka. The support personnel require other skills like zoo-keeper, networking, disk storage too.
I know I'm uprising a very old topic, but after a couple of hours struggling with this very problem and not finding a solution anywhere else, I think this is a good place to put an answer.
We have some Build Servers WindowsXP based and found this very problem: svn command line client is not caching auth credentials.
We finally found out that we are using Cygwin's svn client! not a "native" Windows. So... this client stores all the auth credentials in /home/<user>/.subversion/auth
This /home directory in Cygwin, in our installation is in c:\cygwin\home. AND: the problem was that the Windows user that is running svn did never ever "logged in" in Cygwin, and so there was no /home/<user> directory.
A simple "bash -ls" from a Windows command terminal created the directory, and after the first access to our SVN server with interactive prompting for access credentials, alás, they got cached.
So if you are using Cygwin's svn client, be sure to have a "home" directory created for the local Windows user.
imgDics = (ImageView) v.findViewById(R.id.img_player_tab2_dics);
imgDics.setOnClickListener(onPlayer2Click);
anim = new RotateAnimation(0f, 360f,
Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
0.5f);
anim.setInterpolator(new LinearInterpolator());
anim.setRepeatCount(Animation.INFINITE);
anim.setDuration(4000);
// Start animating the image
imgDics.startAnimation(anim);
function loadpage (page_request, containerid)
{
var loading = document.getElementById ( "loading" ) ;
// when connecting to server
if ( page_request.readyState == 1 )
loading.style.visibility = "visible" ;
// when loaded successfully
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
{
document.getElementById(containerid).innerHTML=page_request.responseText ;
loading.style.visibility = "hidden" ;
}
}
git submodule deinit --all -f
worked for me.
import warnings
warnings.warn("Warning...........Message")
See the python documentation: here
Another approach (no plugin needed) is to just use .ctrlKey
property of the event object that gets passed in. It indicates if Ctrl was pressed at the time of the event, like this:
$(document).keypress("c",function(e) {
if(e.ctrlKey)
alert("Ctrl+C was pressed!!");
});
C#
does not have a seperate runtime library. It uses .NET
as a runtime library.
As @Graham42 noted, mouse option has changed in version 2.1. Scrolling now requires for you to enter copy mode first. To enable scrolling almost identical to how it was before 2.1 add following to your .tmux.conf
.
set-option -g mouse on
# make scrolling with wheels work
bind -n WheelUpPane if-shell -F -t = "#{mouse_any_flag}" "send-keys -M" "if -Ft= '#{pane_in_mode}' 'send-keys -M' 'select-pane -t=; copy-mode -e; send-keys -M'"
bind -n WheelDownPane select-pane -t= \; send-keys -M
This will enable scrolling on hover over a pane and you will be able to scroll that pane line by line.
Source: https://groups.google.com/d/msg/tmux-users/TRwPgEOVqho/Ck_oth_SDgAJ
I've used this library before which does a pretty good job of what you're after. Specifically:-
qs.contains(name)
Returns true if the querystring has a parameter name, else false.
if (qs2.contains("name1")){ alert(qs2.get("name1"));}
You can add PresentationCore.dll more conveniently by editing the project file. Add the following code into your csproj file:
<ItemGroup>
<FrameworkReference Include="Microsoft.WindowsDesktop.App" />
</ItemGroup>
In your solution explorer, you now should see this framework listed, now. With that, you then can also refer to the classes provided by PresentationCore.dll.
Description and examples can be found in IEEE Std 1800-2017 § 11.5.1 "Vector bit-select and part-select addressing". First IEEE appearance is IEEE 1364-2001 (Verilog) § 4.2.1 "Vector bit-select and part-select addressing". Here is an direct example from the LRM:
logic [31: 0] a_vect; logic [0 :31] b_vect; logic [63: 0] dword; integer sel; a_vect[ 0 +: 8] // == a_vect[ 7 : 0] a_vect[15 -: 8] // == a_vect[15 : 8] b_vect[ 0 +: 8] // == b_vect[0 : 7] b_vect[15 -: 8] // == b_vect[8 :15] dword[8*sel +: 8] // variable part-select with fixed width
If sel
is 0 then dword[8*(0) +: 8] == dword[7:0]
If sel
is 7 then dword[8*(7) +: 8] == dword[63:56]
The value to the left always the starting index. The number to the right is the width and must be a positive constant. the +
and -
indicates to select the bits of a higher or lower index value then the starting index.
Assuming address
is in little endian ([msb:lsb]) format, then if(address[2*pointer+:2])
is the equivalent of if({address[2*pointer+1],address[2*pointer]})
In general, I always put my enums in a struct
. I have seen several guidelines including "prefixing".
enum Color
{
Clr_Red,
Clr_Yellow,
Clr_Blue,
};
Always thought this looked more like C
guidelines than C++
ones (for one because of the abbreviation and also because of the namespaces in C++
).
So to limit the scope we now have two alternatives:
I personally tend to use a struct
because it can be used as parameters for template programming while a namespace cannot be manipulated.
Examples of manipulation include:
template <class T>
size_t number() { /**/ }
which returns the number of elements of enum inside the struct T
:)
You need a dict
:
my_dict = {'cheese': 'cake'}
Example code (from the docs):
>>> a = dict(one=1, two=2, three=3)
>>> b = {'one': 1, 'two': 2, 'three': 3}
>>> c = dict(zip(['one', 'two', 'three'], [1, 2, 3]))
>>> d = dict([('two', 2), ('one', 1), ('three', 3)])
>>> e = dict({'three': 3, 'one': 1, 'two': 2})
>>> a == b == c == d == e
True
You can read more about dictionaries here.
You could execute the .sql
file as a script in the SQL Developer worksheet. Either use the Run Script icon, or simply press F5.
For example,
@path\script.sql;
Remember, you need to put @
as shown above.
But, if you have exported the database using database export utility of SQL Developer, then you should use the Import utility. Follow the steps mentioned here Importing and Exporting using the Oracle SQL Developer 3.0
System.out.println(char1+""+char2+char3)
or
String s = char1+""+char2+char3;
I use RegexBuddy for debbuging my regexes it has almost all languages very usefull. Than copy/paste for the targeted language. Terrific tool and not very expensive.
So I copy/pasted your regex and your issue is that [,] are special characters in regex, so you need to escape them. So the regex should be : /!@#$^&%*()+=-[\x5B\x5D]\/{}|:<>?,./im
The easisest thing to do is to wrap your code in a transaction, and then execute each batch of T-SQL code line by line.
For example,
Begin Transaction
-Do some T-SQL queries here.
Rollback transaction -- OR commit transaction
If you want to incorporate error handling you can do so by using a TRY...CATCH BLOCK. Should an error occur you can then rollback the tranasction within the catch block.
For example:
USE AdventureWorks;
GO
BEGIN TRANSACTION;
BEGIN TRY
-- Generate a constraint violation error.
DELETE FROM Production.Product
WHERE ProductID = 980;
END TRY
BEGIN CATCH
SELECT
ERROR_NUMBER() AS ErrorNumber
,ERROR_SEVERITY() AS ErrorSeverity
,ERROR_STATE() AS ErrorState
,ERROR_PROCEDURE() AS ErrorProcedure
,ERROR_LINE() AS ErrorLine
,ERROR_MESSAGE() AS ErrorMessage;
IF @@TRANCOUNT > 0
ROLLBACK TRANSACTION;
END CATCH;
IF @@TRANCOUNT > 0
COMMIT TRANSACTION;
GO
See the following link for more details.
http://msdn.microsoft.com/en-us/library/ms175976.aspx
Hope this helps but please let me know if you need more details.
Another option is to use summary function. It gives a summary of the Ts, Fs and NAs.
> summary(hival)
Mode FALSE TRUE NA's
logical 4367 53 2076
>
This post is high up when you google that error message, which I got when installing security patch KB4505224 on SQL Server 2017 Express i.e. None of the above worked for me, but did consume several hours trying.
The solution for me, partly from here was:
And all was well.
If you want to see a more detailed discussion of differences for the commands, see the Details about Differences section, below.
From the LeMoDa.net website1 (archived), specifically the Windows and Unix command line equivalents page (archived), I found the following2. There's a better/more complete table in the next edit.
Windows command Unix command
rmdir rmdir
rmdir /s rm -r
move mv
I'm interested to hear from @Dave and @javadba to hear how equivalent the commands are - how the "behavior and capabilities" compare, whether quite similar or "woefully NOT equivalent".
All I found out was that when I used it to try and recursively remove a directory and its constituent files and subdirectories, e.g.
(Windows cmd)>rmdir /s C:\my\dirwithsubdirs\
gave me a standard Windows-knows-better-than-you-do-are-you-sure message and prompt
dirwithsubdirs, Are you sure (Y/N)?
and that when I typed Y
, the result was that my top directory and its constituent files and subdirectories went away.
Edit
I'm looking back at this after finding this answer. I retried each of the commands, and I'd change the table a little bit.
Windows command Unix command
rmdir rmdir
rmdir /s /q rm -r
rmdir /s /q rm -rf
rmdir /s rm -ri
move mv
del <file> rm <file>
If you want the equivalent for
rm -rf
you can use
rmdir /s /q
or, as the author of the answer I sourced described,
But there is another "old school" way to do it that was used back in the day when commands did not have options to suppress confirmation messages. Simply
ECHO
the needed response and pipe the value into the command.
echo y | rmdir /s
I tested each of the commands using Windows CMD and Cygwin (with its bash
).
Before each test, I made the following setup.
Windows CMD
>mkdir this_directory
>echo some text stuff > this_directory/some.txt
>mkdir this_empty_directory
Cygwin bash
$ mkdir this_directory
$ echo "some text stuff" > this_directory/some.txt
$ mkdir this_empty_directory
That resulted in the following file structure for both.
base
|-- this_directory
| `-- some.txt
`-- this_empty_directory
Here are the results. Note that I'll not mark each as CMD or bash
; the CMD will have a >
in front, and the bash
will have a $
in front.
RMDIR
>rmdir this_directory
The directory is not empty.
>tree /a /f .
Folder PATH listing for volume Windows
Volume serial number is ¦¦¦¦¦¦¦¦ ¦¦¦¦:¦¦¦¦
base
+---this_directory
| some.txt
|
\---this_empty_directory
> rmdir this_empty_directory
>tree /a /f .
base
\---this_directory
some.txt
$ rmdir this_directory
rmdir: failed to remove 'this_directory': Directory not empty
$ tree --charset=ascii
base
|-- this_directory
| `-- some.txt
`-- this_empty_directory
2 directories, 1 file
$ rmdir this_empty_directory
$ tree --charset=ascii
base
`-- this_directory
`-- some.txt
RMDIR /S /Q and RM -R ; RM -RF
>rmdir /s /q this_directory
>tree /a /f
base
\---this_empty_directory
>rmdir /s /q this_empty_directory
>tree /a /f
base
No subfolders exist
$ rm -r this_directory
$ tree --charset=ascii
base
`-- this_empty_directory
$ rm -r this_empty_directory
$ tree --charset=ascii
base
0 directories, 0 files
$ rm -rf this_directory
$ tree --charset=ascii
base
`-- this_empty_directory
$ rm -rf this_empty_directory
$ tree --charset=ascii
base
0 directories, 0 files
RMDIR /S AND RM -RI
Here, we have a bit of a difference, but they're pretty close.
>rmdir /s this_directory
this_directory, Are you sure (Y/N)? y
>tree /a /f
base
\---this_empty_directory
>rmdir /s this_empty_directory
this_empty_directory, Are you sure (Y/N)? y
>tree /a /f
base
No subfolders exist
$ rm -ri this_directory
rm: descend into directory 'this_directory'? y
rm: remove regular file 'this_directory/some.txt'? y
rm: remove directory 'this_directory'? y
$ tree --charset=ascii
base
`-- this_empty_directory
$ rm -ri this_empty_directory
rm: remove directory 'this_empty_directory'? y
$ tree --charset=ascii
base
0 directories, 0 files
I'M HOPING TO GET A MORE THOROUGH MOVE AND MV TEST
Copyright © Ben Bullock 2009-2018. All rights reserved.
and that there seem to be a bunch of useful programming tips along with some humour (yes, the British spelling) and information on how to fix Japanese toilets. I also found some stuff talking about the "Ibaraki Report", but I don't know if that is the website.
I think I shall go there more often; it's quite useful. Props to Ben Bullock, whose email is on his page. If he wants me to remove this info, I will.
I will include the disclaimer (archived) from the site:
Disclaimer Please read the following disclaimer before using any of the computer program code on this site.
There Is No Warranty For The Program, To The Extent Permitted By Applicable Law. Except When Otherwise Stated In Writing The Copyright Holders And/Or Other Parties Provide The Program “As Is” Without Warranty Of Any Kind, Either Expressed Or Implied, Including, But Not Limited To, The Implied Warranties Of Merchantability And Fitness For A Particular Purpose. The Entire Risk As To The Quality And Performance Of The Program Is With You. Should The Program Prove Defective, You Assume The Cost Of All Necessary Servicing, Repair Or Correction.
In No Event Unless Required By Applicable Law Or Agreed To In Writing Will Any Copyright Holder, Or Any Other Party Who Modifies And/Or Conveys The Program As Permitted Above, Be Liable To You For Damages, Including Any General, Special, Incidental Or Consequential Damages Arising Out Of The Use Or Inability To Use The Program (Including But Not Limited To Loss Of Data Or Data Being Rendered Inaccurate Or Losses Sustained By You Or Third Parties Or A Failure Of The Program To Operate With Any Other Programs), Even If Such Holder Or Other Party Has Been Advised Of The Possibility Of Such Damages.
https://www.google.com/search?q=cmd+equivalent+of+rm
The information I'm sharing came up first.
That's odd. Does your program compile and run successfully and only fail on 'Publish' or does it fail on every compile now?
Also, have you perhaps changed the file's properties' Build Action
to something other than Compile
?
You could store the last emitted value separately from the Observable. Then read it when needed.
let lastValue: number;
const subscription = new Service().start();
subscription
.subscribe((data) => {
lastValue = data;
}
);
Simple ---
I have created a Sheet 2 with 4 cells and Sheet 1 with a single Cell with a Formula:
=SUM(Sheet2!B3:E3)
Note, trying as you stated, it does not make sense to assign a Single Cell a value from a range. Send it to a Formula that uses a range to do something with it.
// Get the focused element:
var $focused = $(':focus');
// No jQuery:
var focused = document.activeElement;
// Does the element have focus:
var hasFocus = $('foo').is(':focus');
// No jQuery:
elem === elem.ownerDocument.activeElement;
Which one should you use? quoting the jQuery docs:
As with other pseudo-class selectors (those that begin with a ":"), it is recommended to precede :focus with a tag name or some other selector; otherwise, the universal selector ("*") is implied. In other words, the bare
$(':focus')
is equivalent to$('*:focus')
. If you are looking for the currently focused element, $( document.activeElement ) will retrieve it without having to search the whole DOM tree.
The answer is:
document.activeElement
And if you want a jQuery object wrapping the element:
$(document.activeElement)
Below is the PowerShell code that I use for basic web URL testing. It includes the ability to accept invalid certs and get detailed information about the results of checking the certificate.
$CertificateValidatorClass = @'
using System;
using System.Collections.Concurrent;
using System.Net;
using System.Security.Cryptography;
using System.Text;
namespace CertificateValidation
{
public class CertificateValidationResult
{
public string Subject { get; internal set; }
public string Thumbprint { get; internal set; }
public DateTime Expiration { get; internal set; }
public DateTime ValidationTime { get; internal set; }
public bool IsValid { get; internal set; }
public bool Accepted { get; internal set; }
public string Message { get; internal set; }
public CertificateValidationResult()
{
ValidationTime = DateTime.UtcNow;
}
}
public static class CertificateValidator
{
private static ConcurrentStack<CertificateValidationResult> certificateValidationResults = new ConcurrentStack<CertificateValidationResult>();
public static CertificateValidationResult[] CertificateValidationResults
{
get
{
return certificateValidationResults.ToArray();
}
}
public static CertificateValidationResult LastCertificateValidationResult
{
get
{
CertificateValidationResult lastCertificateValidationResult = null;
certificateValidationResults.TryPeek(out lastCertificateValidationResult);
return lastCertificateValidationResult;
}
}
public static bool ServicePointManager_ServerCertificateValidationCallback(object sender, System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Security.Cryptography.X509Certificates.X509Chain chain, System.Net.Security.SslPolicyErrors sslPolicyErrors)
{
StringBuilder certificateValidationMessage = new StringBuilder();
bool allowCertificate = true;
if (sslPolicyErrors != System.Net.Security.SslPolicyErrors.None)
{
if ((sslPolicyErrors & System.Net.Security.SslPolicyErrors.RemoteCertificateNameMismatch) == System.Net.Security.SslPolicyErrors.RemoteCertificateNameMismatch)
{
certificateValidationMessage.AppendFormat("The remote certificate name does not match.\r\n", certificate.Subject);
}
if ((sslPolicyErrors & System.Net.Security.SslPolicyErrors.RemoteCertificateChainErrors) == System.Net.Security.SslPolicyErrors.RemoteCertificateChainErrors)
{
certificateValidationMessage.AppendLine("The certificate chain has the following errors:");
foreach (System.Security.Cryptography.X509Certificates.X509ChainStatus chainStatus in chain.ChainStatus)
{
certificateValidationMessage.AppendFormat("\t{0}", chainStatus.StatusInformation);
if (chainStatus.Status == System.Security.Cryptography.X509Certificates.X509ChainStatusFlags.Revoked)
{
allowCertificate = false;
}
}
}
if ((sslPolicyErrors & System.Net.Security.SslPolicyErrors.RemoteCertificateNotAvailable) == System.Net.Security.SslPolicyErrors.RemoteCertificateNotAvailable)
{
certificateValidationMessage.AppendLine("The remote certificate was not available.");
allowCertificate = false;
}
System.Console.WriteLine();
}
else
{
certificateValidationMessage.AppendLine("The remote certificate is valid.");
}
CertificateValidationResult certificateValidationResult = new CertificateValidationResult
{
Subject = certificate.Subject,
Thumbprint = certificate.GetCertHashString(),
Expiration = DateTime.Parse(certificate.GetExpirationDateString()),
IsValid = (sslPolicyErrors == System.Net.Security.SslPolicyErrors.None),
Accepted = allowCertificate,
Message = certificateValidationMessage.ToString()
};
certificateValidationResults.Push(certificateValidationResult);
return allowCertificate;
}
public static void SetDebugCertificateValidation()
{
ServicePointManager.ServerCertificateValidationCallback = ServicePointManager_ServerCertificateValidationCallback;
}
public static void SetDefaultCertificateValidation()
{
ServicePointManager.ServerCertificateValidationCallback = null;
}
public static void ClearCertificateValidationResults()
{
certificateValidationResults.Clear();
}
}
}
'@
function Set-CertificateValidationMode
{
<#
.SYNOPSIS
Sets the certificate validation mode.
.DESCRIPTION
Set the certificate validation mode to one of three modes with the following behaviors:
Default -- Performs the .NET default validation of certificates. Certificates are not checked for revocation and will be rejected if invalid.
CheckRevocationList -- Cerftificate Revocation Lists are checked and certificate will be rejected if revoked or invalid.
Debug -- Certificate Revocation Lists are checked and revocation will result in rejection. Invalid certificates will be accepted. Certificate validation
information is logged and can be retrieved from the certificate handler.
.EXAMPLE
Set-CertificateValidationMode Debug
.PARAMETER Mode
The mode for certificate validation.
#>
[CmdletBinding(SupportsShouldProcess = $false)]
param
(
[Parameter()]
[ValidateSet('Default', 'CheckRevocationList', 'Debug')]
[string] $Mode
)
begin
{
$isValidatorClassLoaded = (([System.AppDomain]::CurrentDomain.GetAssemblies() | ?{ $_.GlobalAssemblyCache -eq $false }) | ?{ $_.DefinedTypes.FullName -contains 'CertificateValidation.CertificateValidator' }) -ne $null
if ($isValidatorClassLoaded -eq $false)
{
Add-Type -TypeDefinition $CertificateValidatorClass
}
}
process
{
switch ($Mode)
{
'Debug'
{
[System.Net.ServicePointManager]::CheckCertificateRevocationList = $true
[CertificateValidation.CertificateValidator]::SetDebugCertificateValidation()
}
'CheckRevocationList'
{
[System.Net.ServicePointManager]::CheckCertificateRevocationList = $true
[CertificateValidation.CertificateValidator]::SetDefaultCertificateValidation()
}
'Default'
{
[System.Net.ServicePointManager]::CheckCertificateRevocationList = $false
[CertificateValidation.CertificateValidator]::SetDefaultCertificateValidation()
}
}
}
}
function Clear-CertificateValidationResults
{
<#
.SYNOPSIS
Clears the collection of certificate validation results.
.DESCRIPTION
Clears the collection of certificate validation results.
.EXAMPLE
Get-CertificateValidationResults
#>
[CmdletBinding(SupportsShouldProcess = $false)]
param()
begin
{
$isValidatorClassLoaded = (([System.AppDomain]::CurrentDomain.GetAssemblies() | ?{ $_.GlobalAssemblyCache -eq $false }) | ?{ $_.DefinedTypes.FullName -contains 'CertificateValidation.CertificateValidator' }) -ne $null
if ($isValidatorClassLoaded -eq $false)
{
Add-Type -TypeDefinition $CertificateValidatorClass
}
}
process
{
[CertificateValidation.CertificateValidator]::ClearCertificateValidationResults()
Sleep -Milliseconds 20
}
}
function Get-CertificateValidationResults
{
<#
.SYNOPSIS
Gets the certificate validation results for all operations performed in the PowerShell session since the Debug cerificate validation mode was enabled.
.DESCRIPTION
Gets the certificate validation results for all operations performed in the PowerShell session since the Debug certificate validation mode was enabled in reverse chronological order.
.EXAMPLE
Get-CertificateValidationResults
#>
[CmdletBinding(SupportsShouldProcess = $false)]
param()
begin
{
$isValidatorClassLoaded = (([System.AppDomain]::CurrentDomain.GetAssemblies() | ?{ $_.GlobalAssemblyCache -eq $false }) | ?{ $_.DefinedTypes.FullName -contains 'CertificateValidation.CertificateValidator' }) -ne $null
if ($isValidatorClassLoaded -eq $false)
{
Add-Type -TypeDefinition $CertificateValidatorClass
}
}
process
{
return [CertificateValidation.CertificateValidator]::CertificateValidationResults
}
}
function Test-WebUrl
{
<#
.SYNOPSIS
Tests and reports information about the provided web URL.
.DESCRIPTION
Tests a web URL and reports the time taken to get and process the request and response, the HTTP status, and the error message if an error occurred.
.EXAMPLE
Test-WebUrl 'http://websitetotest.com/'
.EXAMPLE
'https://websitetotest.com/' | Test-WebUrl
.PARAMETER HostName
The Hostname to add to the back connection hostnames list.
.PARAMETER UseDefaultCredentials
If present the default Windows credential will be used to attempt to authenticate to the URL; otherwise, no credentials will be presented.
#>
[CmdletBinding()]
param
(
[Parameter(Mandatory = $true, ValueFromPipeline = $true)]
[Uri] $Url,
[Parameter()]
[Microsoft.PowerShell.Commands.WebRequestMethod] $Method = 'Get',
[Parameter()]
[switch] $UseDefaultCredentials
)
process
{
[bool] $succeeded = $false
[string] $statusCode = $null
[string] $statusDescription = $null
[string] $message = $null
[int] $bytesReceived = 0
[Timespan] $timeTaken = [Timespan]::Zero
$timeTaken = Measure-Command `
{
try
{
[Microsoft.PowerShell.Commands.HtmlWebResponseObject] $response = Invoke-WebRequest -UseDefaultCredentials:$UseDefaultCredentials -Method $Method -Uri $Url
$succeeded = $true
$statusCode = $response.StatusCode.ToString('D')
$statusDescription = $response.StatusDescription
$bytesReceived = $response.RawContent.Length
Write-Verbose "$($Url.ToString()): $($statusCode) $($statusDescription) $($message)"
}
catch [System.Net.WebException]
{
$message = $Error[0].Exception.Message
[System.Net.HttpWebResponse] $exceptionResponse = $Error[0].Exception.GetBaseException().Response
if ($exceptionResponse -ne $null)
{
$statusCode = $exceptionResponse.StatusCode.ToString('D')
$statusDescription = $exceptionResponse.StatusDescription
$bytesReceived = $exceptionResponse.ContentLength
if ($statusCode -in '401', '403', '404')
{
$succeeded = $true
}
}
else
{
Write-Warning "$($Url.ToString()): $($message)"
}
}
}
return [PSCustomObject] @{ Url = $Url; Succeeded = $succeeded; BytesReceived = $bytesReceived; TimeTaken = $timeTaken.TotalMilliseconds; StatusCode = $statusCode; StatusDescription = $statusDescription; Message = $message; }
}
}
Set-CertificateValidationMode Debug
Clear-CertificateValidationResults
Write-Host 'Testing web sites:'
'https://expired.badssl.com/', 'https://wrong.host.badssl.com/', 'https://self-signed.badssl.com/', 'https://untrusted-root.badssl.com/', 'https://revoked.badssl.com/', 'https://pinning-test.badssl.com/', 'https://sha1-intermediate.badssl.com/' | Test-WebUrl | ft -AutoSize
Write-Host 'Certificate validation results (most recent first):'
Get-CertificateValidationResults | ft -AutoSize
Try running the script explicitly using bash command rather than just executing it as executable.
This will also work and you don't need the extra class:
#navigation li li {}
If you have a third level of LI's you may have to reset/override some of the styles they will inherit from the above selector. You can target the third level like so:
#navigation li li li {}
Use the substring method, as follows:
int n = 8;
String s = "Hello, World!";
System.out.println(s.substring(0,n);
If n is greater than the length of the string, this will throw an exception, as one commenter has pointed out. one simple solution is to wrap all this in the condition if(s.length()<n)
in your else
clause, you can choose whether you just want to print/return the whole String or handle it another way.
Hardiff.com is pretty useful tool. It allows you to compare one or more .har
files.
(5 years laters, for the Honor of PostgreSQL, the most advanced DDBB of the Kingdom)
In PostgreSQL:
\d table_name
Or, using SQL:
select column_name, data_type, character_maximum_length
from INFORMATION_SCHEMA.COLUMNS
where table_name = 'table_name';
You could try with this for mime type
$image = getimagesize($_FILES['image']['tmp_name']);
$image['mime']
will return the mime type.
This function doesn't require GD library. You can find the documentation here.
This returns the mime type of the image.
Some people use the $_FILES["file"]["type"]
but it's not reliable as been given by the browser and not by PHP.
You can use pathinfo()
as ThiefMaster suggested to retrieve the image extension.
First make sure that the image is being uploaded successfully while in development before performing any operations with the image.
Answer above did not work for me on Chrome. The change event was been fired after I clicked out of the field somewhere, which did not help because the datepicker window is also closed too when you click out of the field.
I did use this code and it worked pretty well. You can place it after calling .datepicker();
HTML
<input type="text" class="datepicker-input" placeholder="click to show datepicker" />
JavaScript
$(".datepicker-input").each(function() {
$(this).datepicker();
});
$(".datepicker-input").click(function() {
$(".datepicker-days .day").click(function() {
$('.datepicker').hide();
});
});
At this point in your code the view controller's view has only been created but not added to any view hierarchy. If you want to present from that view controller as soon as possible you should do it in viewDidAppear
to be safest.
This is a bit modern and pure JavaScript
document.querySelectorAll('#selectId option').forEach(option => option.remove())
another alternative is to use a form replacement script/library. They usually hide the original element and replace them with a div or span, which you can style in whatever way you like.
Examples are:
http://customformelements.net (based on mootools) http://www.htmldrive.net/items/show/481/jQuery-UI-Radiobutton-und-Checkbox-Replacement.html
You can use BackgroundScheduler()
from APScheduler package (v3.5.3):
import time
import atexit
from apscheduler.schedulers.background import BackgroundScheduler
def print_date_time():
print(time.strftime("%A, %d. %B %Y %I:%M:%S %p"))
scheduler = BackgroundScheduler()
scheduler.add_job(func=print_date_time, trigger="interval", seconds=3)
scheduler.start()
# Shut down the scheduler when exiting the app
atexit.register(lambda: scheduler.shutdown())
Note that two of these schedulers will be launched when Flask is in debug mode. For more information, check out this question.
To make it easier for yourself you could also create an actionfilterattribute
public class AllowJsonGetAttribute : ActionFilterAttribute
{
public override void OnResultExecuting(ResultExecutingContext filterContext)
{
var jsonResult = filterContext.Result as JsonResult;
if (jsonResult == null)
throw new ArgumentException("Action does not return a JsonResult,
attribute AllowJsonGet is not allowed");
jsonResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
base.OnResultExecuting(filterContext);
}
}
and use it on your action
[AllowJsonGet]
public JsonResult MyAjaxAction()
{
return Json("this is my test");
}
No. Looking at the syntax from the man page for GNU make
make [ -f makefile ] [ options ] ... [ targets ] ...
you can specify multiple targets, hence 'no' (at least no in the exact way you specified).
There is two condition,
So, For that purpose, you have to follow this steps:
Go to Build Settings and perform below steps with search,
After that, clean and rebuild your project.
In that case,First write "@objc" before your class in swift file.
After that ,In your objective c file, write this,
#import "YourProjectName-Swift.h"
In that case, In your header file, write this,
#import "YourObjective-c_FileName.h"
I hope this will help you.
Change 2 to 1 as the first parameter in the splice call when removing the element:
var tmp = playlist.splice(1, 1);
playlist.splice(2, 0, tmp[0]);
This is answered in some of the answers to Can't find how to use HttpContent as well as in this blog post.
In summary, you can't directly set up an instance of HttpContent
because it is an abstract class. You need to use one the classes derived from it depending on your need. Most likely StringContent
, which lets you set the string value of the response, the encoding, and the media type in the constructor. See: http://msdn.microsoft.com/en-us/library/system.net.http.stringcontent.aspx
You don't need the assignment operator. append returns None.
Uh, WHERE mydate<='2008-11-25'
is the way to do it. That should work.
Do you get an error message? Are you using an ancient version of MySQL?
Edit: The following works fine for me on MySQL 5.x
create temporary table foo(d datetime);
insert into foo(d) VALUES ('2000-01-01');
insert into foo(d) VALUES ('2001-01-01');
select * from foo where d <= '2000-06-01';
Add w-auto native bootstrap 4 class to the table element and your table will fit its content.
To further generalize @Alexander's example, outer
is relevant in cases where a function must compute itself on each pair of vector values:
vars1<-c(1,2,3)
vars2<-c(10,20,30)
mult_one<-function(var1,var2)
{
var1*var2
}
outer(vars1,vars2,mult_one)
gives:
> outer(vars1, vars2, mult_one)
[,1] [,2] [,3]
[1,] 10 20 30
[2,] 20 40 60
[3,] 30 60 90
Subclassing dict
is one method, though not efficient. Here if you supply an integer it will return d[list(d)[n]]
, otherwise access the dictionary as expected:
class mydict(dict):
def __getitem__(self, value):
if isinstance(value, int):
return self.get(list(self)[value])
else:
return self.get(value)
d = mydict({'a': 'hello', 'b': 'this', 'c': 'is', 'd': 'a',
'e': 'test', 'f': 'dictionary', 'g': 'testing'})
d[0] # 'hello'
d[1] # 'this'
d['c'] # 'is'
Using the Java API:
String[] f(String[] first, String[] second) {
List<String> both = new ArrayList<String>(first.length + second.length);
Collections.addAll(both, first);
Collections.addAll(both, second);
return both.toArray(new String[both.size()]);
}
I'll third or fifth or whatever the recommendation for making your fraction immutable. I'd also recommend that you have it extend the Number class. I'd probably look at the Double class, since you're probably going to want to implement many of the same methods.
You should probably also implement Comparable and Serializable since this behavior will probably be expected. Thus, you will need to implement compareTo(). You will also need to override equals() and I cannot stress strongly enough that you also override hashCode(). This might be one of the few cases though where you don't want compareTo() and equals() to be consistent since fractions reducable to each other are not necessarily equal.
Starting from Hiebrnate 5.2.10 you can use Hibernate.proxy method to convert a proxy to your real entity:
MyEntity myEntity = (MyEntity) Hibernate.unproxy( proxyMyEntity );
Don't forget to include
import Image
In order to show it use this :
Image.open('pathToFile').show()
package com.your.package.spring.fix;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
/**
* @author Szilard_Jakab (JaKi)
* Workaround for Spring 3 @ResponseBody issue - get incorrectly
encoded parameters from the URL (in example @ JSON response)
* Tested @ Spring 3.0.4
*/
public class RepairWrongUrlParamEncoding {
private static String restoredParamToOriginal;
/**
* @param wrongUrlParam
* @return Repaired url param (UTF-8 encoded)
* @throws UnsupportedEncodingException
*/
public static String repair(String wrongUrlParam) throws
UnsupportedEncodingException {
/* First step: encode the incorrectly converted UTF-8 strings back to
the original URL format
*/
restoredParamToOriginal = URLEncoder.encode(wrongUrlParam, "ISO-8859-1");
/* Second step: decode to UTF-8 again from the original one
*/
return URLDecoder.decode(restoredParamToOriginal, "UTF-8");
}
}
After I have tried lot of workaround for this issue.. I thought this out and it works fine.
After some experimentation I found that a fourth value in the line controls the spread (at least in FF 10). I opposed the vertical offsets and gave them a negative spread.
Here's the working pen: http://codepen.io/gillytech/pen/dlbsx
<html>
<head>
<style type="text/css">
#test {
width: 500px;
border: 1px #CCC solid;
height: 200px;
box-shadow:
inset 0px 11px 8px -10px #CCC,
inset 0px -11px 8px -10px #CCC;
}
</style>
</head>
<body>
<div id="test"></div>
</body>
</html>
This works perfectly for me!
when using String array, you have to give size of array while initializing
eg
String[] str = new String[10];
you can use index 0-9 to store values
str[0] = "value1"
str[1] = "value2"
str[2] = "value3"
str[3] = "value4"
str[4] = "value5"
str[5] = "value6"
str[6] = "value7"
str[7] = "value8"
str[8] = "value9"
str[9] = "value10"
if you are using ArrayList instread of string array, you can use it without initializing size of array ArrayList str = new ArrayList();
you can add value by using add method of Arraylist
str.add("Value1");
get retrieve a value from arraylist, you can use get method
String s = str.get(0);
find total number of items by size method
int nCount = str.size();
read more from here
In C++11, you can do this as a one-liner with a call to regex_replace
:
#include <string>
#include <regex>
using std::string;
string do_replace( string const & in, string const & from, string const & to )
{
return std::regex_replace( in, std::regex(from), to );
}
string test = "Remove all spaces";
std::cout << do_replace(test, " ", "") << std::endl;
output:
Removeallspaces
setval('sequence_name', sequence_value)
Use iloc to access by position (rather than label):
In [11]: df = pd.DataFrame([[1, 2], [3, 4]], ['a', 'b'], ['A', 'B'])
In [12]: df
Out[12]:
A B
a 1 2
b 3 4
In [13]: df.iloc[0] # first row in a DataFrame
Out[13]:
A 1
B 2
Name: a, dtype: int64
In [14]: df['A'].iloc[0] # first item in a Series (Column)
Out[14]: 1
Please check: http://man7.org/linux/man-pages/man5/proc.5.html
address perms offset dev inode pathname
00400000-00452000 r-xp 00000000 08:02 173521 /usr/bin/dbus-daemon
The address field is the address space in the process that the mapping occupies.
The perms field is a set of permissions:
r = read
w = write
x = execute
s = shared
p = private (copy on write)
The offset field is the offset into the file/whatever;
dev is the device (major:minor);
inode is the inode on that device.0 indicates that no inode is associated with the memoryregion, as would be the case with BSS (uninitialized data).
The pathname field will usually be the file that is backing the mapping. For ELF files, you can easily coordinate with the offset field by looking at the Offset field in the ELF program headers (readelf -l).
Under Linux 2.0, there is no field giving pathname.
In your html you can pass in an array for the name i.e
<input type="text" name="address[]" />
This way php will receive an array of addresses.
If you edited the right php.ini file, restarted Apache or Nginx and still doesn't work, then you have to restart php-fpm too:
sudo service php-fpm restart
There are two methods in jQuery to check for visibility:
$("#selector").is(":visible")
and
$("#selector").is(":hidden")
You can also execute commands based on visibility in the selector;
$("#selector:visible").hide()
or
$("#selector:hidden").show()
I add this only so you can see a quick way to write it so that you can check what will be updated before doing the update.
UPDATE Table
SET Table.col1 = other_table.col1,
Table.col2 = other_table.col2
--select Table.col1, other_table.col,Table.col2,other_table.col2, *
FROM Table
INNER JOIN other_table
ON Table.id = other_table.id
You can iterate DefaultView
as the following code by Indexer
:
DataTable dt = new DataTable();
// add some rows to your table
// ...
dt.DefaultView.Sort = "OneColumnName ASC"; // For example
for (int i = 0; i < dt.Rows.Count; i++)
{
DataRow oRow = dt.DefaultView[i].Row;
// Do your stuff with oRow
// ...
}
The answer of Pardeep Jain can be useful for static data, but what if we have an array in JSON?
For example, we have i values and get the value of id field
alert(obj[i].id); //works!
But what if we need key with spaces?
In this case, the following construction can help (without point between [] blocks):
alert(obj[i]["No. of interfaces"]); //works too!
Please see https://github.com/joshua-gould/canvas2pdf. This library creates a PDF representation of your canvas element, unlike the other proposed solutions which embed an image in a PDF document.
//Create a new PDF canvas context.
var ctx = new canvas2pdf.Context(blobStream());
//draw your canvas like you would normally
ctx.fillStyle='yellow';
ctx.fillRect(100,100,100,100);
// more canvas drawing, etc...
//convert your PDF to a Blob and save to file
ctx.stream.on('finish', function () {
var blob = ctx.stream.toBlob('application/pdf');
saveAs(blob, 'example.pdf', true);
});
ctx.end();
Create some nice new 10 year certificates and install them. The procedure is fairly easy.
Start at (1B) Generate your own CA (Certificate Authority) on this web page: Creating Certificate Authorities and self-signed SSL certificates and generate your CA Certificate and Key. Once you have these, generate your Server Certificate and Key. Create a Certificate Signing Request (CSR) and then sign the Server Key with the CA Certificate. Now install your Server Certificate and Key on the web server as usual, and import the CA Certificate into Internet Explorer's Trusted Root Certification Authority Store (used by the Flex uploader and Chrome as well) and into Firefox's Certificate Manager Authorities Store on each workstation that needs to access the server using the self-signed, CA-signed server key/certificate pair.
You now should not see any warning about using self-signed Certificates as the browsers will find the CA certificate in the Trust Store and verify the server key has been signed by this trusted certificate. Also in e-commerce applications like Magento, the Flex image uploader will now function in Firefox without the dreaded "Self-signed certificate" error message.
This is an old question. CSS has evolved. There now is the vh
(viewport height) unit, also new layout options like flexbox
or CSS grid
to achieve classical designs in cleaner ways.
And this for clearing all controls in form like textbox, checkbox, radioButton
you can add different types you want..
private void ClearTextBoxes(Control control)
{
foreach (Control c in control.Controls)
{
if (c is TextBox)
{
((TextBox)c).Clear();
}
if (c.HasChildren)
{
ClearTextBoxes(c);
}
if (c is CheckBox)
{
((CheckBox)c).Checked = false;
}
if (c is RadioButton)
{
((RadioButton)c).Checked = false;
}
}
}
public class DateComparator implements Comparator<Marker> {
@Override
public int compare(Mark lhs, Mark rhs) {
Double distance = Double.valueOf(lhs.getDistance());
Double distance1 = Double.valueOf(rhs.getDistance());
if (distance.compareTo(distance1) < 0) {
return -1;
} else if (distance.compareTo(distance1) > 0) {
return 1;
} else {
return 0;
}
}
}
ArrayList(Marker) arraylist;
How To use:
Collections.sort(arraylist, new DateComparator());
This is a pretty common proof. One way to prove this is to use mathematical induction. Here is a link: http://zimmer.csufresno.edu/~larryc/proofs/proofs.mathinduction.html
Tieme put a lot of effort into his excellent answer, but I think the core of the OP's question is how these technologies relate to PHP rather than how each technology works.
PHP is the most used language in web development besides the obvious client side HTML, CSS, and Javascript. Yet PHP has 2 major issues when it comes to real-time applications:
libphp5.so
on Linux, php5ts.dll
on Windows, etc) as if it still a CGI processing a GET/POST request. It still executes code as if it just has to build a "page" and then end its life cycle. As a result, it has very little support for multi-thread or event-driven programming (within PHP userspace), making it currently unpractical for real-time, multi-user applications.Note that PHP does have extensions to provide event loops (such as libevent
) and threads (such as pthreads
) in PHP userspace, but very, very, few of the applications use these.
PHP 7 will be a great step to fix these issues as well, and seems very promising as a platform for real-time applications.
Check out this answer, which describes, how to get ID response. First, you need to create method get data:
const https = require('https');
getFbData = (accessToken, apiPath, callback) => {
const options = {
host: 'graph.facebook.com',
port: 443,
path: `${apiPath}access_token=${accessToken}`, // apiPath example: '/me/friends'
method: 'GET'
};
let buffer = ''; // this buffer will be populated with the chunks of the data received from facebook
const request = https.get(options, (result) => {
result.setEncoding('utf8');
result.on('data', (chunk) => {
buffer += chunk;
});
result.on('end', () => {
callback(buffer);
});
});
request.on('error', (e) => {
console.log(`error from facebook.getFbData: ${e.message}`)
});
request.end();
}
Then simply use your method whenever you want, like this:
getFbData(access_token, '/me?fields=id&', (result) => {
console.log(result);
});
In your example, you have:
if (new BigInteger("1111000011110001", 2).toByteArray() == array)
When dealing with objects, ==
in java compares reference values. You're checking to see if the reference to the array returned by toByteArray()
is the same as the reference held in array
, which of course can never be true. In addition, array classes don't override .equals()
so the behavior is that of Object.equals()
which also only compares the reference values.
To compare the contents of two arrays, static array comparison methods are provided by the Arrays class
byte[] array = new BigInteger("1111000011110001", 2).toByteArray();
byte[] secondArray = new BigInteger("1111000011110001", 2).toByteArray();
if (Arrays.equals(array, secondArray))
{
System.out.println("Yup, they're the same!");
}
You are trying to delete a row that is referenced by another row (possibly in another table).
You need to delete that row first (or at least re-set its foreign key to something else), otherwise you’d end up with a row that references a non-existing row. The database forbids that.
For int[] what you've done looks good to me. astander's answer would also work well for List<int>
.
I wanted to do the same thing, but with 5 instead of 10, and came up with a simple function. Hope it's useful:
def roundToFive(num):
remaining = num % 5
if remaining in range(0, 3):
return num - remaining
return num + (5 - remaining)
Can't you just use Select?
Use select on a connected socket. If the select returns with your socket as Ready but the subsequent Receive returns 0 bytes that means the client disconnected the connection. AFAIK, that is the fastest way to determine if the client disconnected.
I do not know C# so just ignore if my solution does not fit in C# (C# does provide select though) or if I had misunderstood the context.
import javax.xml.bind.DatatypeConverter;
public class f{
public static void main(String a[]){
String str = new String(DatatypeConverter.printBase64Binary(new String("user:123").getBytes()));
String res = DatatypeConverter.parseBase64Binary(str);
System.out.println(res);
}
}
As of IE11, you need to use addEventListener
. attachEvent
is deprecated and throws an error.
[0, 1, 1, 0].map {"\($0)"}.reduce("") { $0 + $1 } // "0110"
In the spirit of functional programming
var countries = ['United States', 'Canada', 'Argentina', 'Armenia'];
var cList = $('ul.mylist')
$.each(countries, function(i) {
var li = $('<li/>')
.addClass('ui-menu-item')
.attr('role', 'menuitem')
.appendTo(cList);
var a = $('<a/>')
.addClass('ui-all')
.text( this )
.appendTo(li);
});
While the results vary in this case because the column names are numbers, another way I've used is data.frame(rbind(mytable))
. Using the example from @X.X:
> freq_t = table(cyl = mtcars$cyl, gear = mtcars$gear)
> freq_t
gear
cyl 3 4 5
4 1 8 2
6 2 4 1
8 12 0 2
> data.frame(rbind(freq_t))
X3 X4 X5
4 1 8 2
6 2 4 1
8 12 0 2
If the column names do not start with numbers, the X
won't get added to the front of them.
CONVERT(VARCHAR,GETDATE(),120)
I created my project folder 'phpproj' in
...\xampp\htdocs
ex:...\xampp\htdocs\phpproj
and it worked for me. I am using Win 7 & and using xampp-win32-1.8.1
I added a php file with the following code
<?php
// Show all information, defaults to INFO_ALL
phpinfo();
?>
was able to access the file using the following URL
http://localhost/phpproj/copy.php
Make sure you restart your Apache server using the control panel before accessing it using the above URL
In Inllij IDEA there is an option also to skip test goal.
Basically you want to test
I will evaluate first 2 options as the 3rd one has been sufficiently answered already.
easiest is just to develop a webpage on your WebApp that gathers some basic metrics, and have a client that can read the results or detect connectivity issues.
For doing so, you have several issues
You should use profiles.
<profiles>
<profile>
<id>otherOutputDir</id>
<build>
<directory>yourDirectory</directory>
</build>
</profile>
</profiles>
And start maven with your profile
mvn compile -PotherOutputDir
If you really want to define your directory from the command line you could do something like this (NOT recommended at all) :
<properties>
<buildDirectory>${project.basedir}/target</buildDirectory>
</properties>
<build>
<directory>${buildDirectory}</directory>
</build>
And compile like this :
mvn compile -DbuildDirectory=test
That's because you can't change the target directory by using -Dproject.build.directory
The below code work fine with me of sure thanks for the above comments. You can add report viewer and change the visible=false and use the below code on submit button:
protected void Button1_Click(object sender, EventArgs e)
{
Warning[] warnings;
string[] streamIds;
string mimeType = string.Empty;
string encoding = string.Empty;
string extension = string.Empty;
string HIJRA_TODAY = "01/10/1435";
ReportParameter[] param = new ReportParameter[3];
param[0] = new ReportParameter("CUSTOMER_NUM", CUSTOMER_NUMTBX.Text);
param[1] = new ReportParameter("REF_CD", REF_CDTB.Text);
param[2] = new ReportParameter("HIJRA_TODAY", HIJRA_TODAY);
byte[] bytes = ReportViewer1.LocalReport.Render(
"PDF",
null,
out mimeType,
out encoding,
out extension,
out streamIds,
out warnings);
Response.Buffer = true;
Response.Clear();
Response.ContentType = mimeType;
Response.AddHeader(
"content-disposition",
"attachment; filename= filename" + "." + extension);
Response.OutputStream.Write(bytes, 0, bytes.Length); // create the file
Response.Flush(); // send it to the client to download
Response.End();
}
Six years on, this is still at the top for some searches. Things have changed a lot since then. Now the defacto standard is more or less to use Volley and the NetworkImageView which takes care of the heavy lifting for you.
Assuming that you already have your Apaters, Loaders and ListFragments setup properly, this official google tutorial explains how to use NetworkImageView to load the images. Images are automatically loaded in a background thread and the view updated on the UI thread. It even supports caching.
Try this:
(Get-ChildItem -Path c:\pstbak\*.* -Filter *.pst | ? {
$_.LastWriteTime -gt (Get-Date).AddDays(-3)
}).Count
After years of ugly string parsing, there's a better way: URLSearchParams Let's have a look at how we can use this new API to get values from the location!
//Assuming URL has "?post=1234&action=edit"
var urlParams = new URLSearchParams(window.location.search);
console.log(urlParams.has('post')); // true
console.log(urlParams.get('action')); // "edit"
console.log(urlParams.getAll('action')); // ["edit"]
console.log(urlParams.toString()); // "?post=1234&action=edit"
console.log(urlParams.append('active', '1')); // "?
post=1234&action=edit&active=1"
use this function from an answer below instead of URLSearchParams
$.urlParam = function (name) {
var results = new RegExp('[\?&]' + name + '=([^&#]*)')
.exec(window.location.search);
return (results !== null) ? results[1] || 0 : false;
}
console.log($.urlParam('action')); //edit
For Symfony 2.1:
This is my final solution putting in together many others solutions:
protected function getAllFormErrorMessages($form)
{
$retval = array();
foreach ($form->getErrors() as $key => $error) {
if($error->getMessagePluralization() !== null) {
$retval['message'] = $this->get('translator')->transChoice(
$error->getMessage(),
$error->getMessagePluralization(),
$error->getMessageParameters(),
'validators'
);
} else {
$retval['message'] = $this->get('translator')->trans($error->getMessage(), array(), 'validators');
}
}
foreach ($form->all() as $name => $child) {
$errors = $this->getAllFormErrorMessages($child);
if (!empty($errors)) {
$retval[$name] = $errors;
}
}
return $retval;
}
One of the easiest way
go to terminal-
git push <Git Remote path> --all
To prepare the configration for WCF is hard, and sometimes a service type definition go unnoticed.
I wrote only the namespace in the service tag, so I got the same error.
<service name="ServiceNameSpace">
Do not forget, the service tag needs a fully-qualified service class name.
<service name="ServiceNameSpace.ServiceClass">
For the other folks who are like me.
In my case it was the problem of building the extension, I was pointing at an extension src (with manifest and everything) but without a build.
If you run into this scenario run
npm i
then
npm build
The TextBoxFor
is a newer MVC input extension introduced in MVC2.
The main benefit of the newer strongly typed extensions is to show any errors / warnings at compile-time rather than runtime.
See this page.
http://weblogs.asp.net/scottgu/archive/2010/01/10/asp-net-mvc-2-strongly-typed-html-helpers.aspx
In views with {{}}
and/or ng-model, Angular is setting up $watch()
es for you behind the scenes.
By default $watch
compares by reference. If you set the third parameter to $watch
to true
, Angular will instead "shallow" watch the object for changes. For arrays this means comparing the array items, for object maps this means watching the properties. So this should do what you want:
$scope.$watch('myModel', function() { ... }, true);
Update: Angular v1.2 added a new method for this, `$watchCollection():
$scope.$watchCollection('myModel', function() { ... });
Note that the word "shallow" is used to describe the comparison rather than "deep" because references are not followed -- e.g., if the watched object contains a property value that is a reference to another object, that reference is not followed to compare the other object.
Here I have a simple solution inspired by Ray's answer. This should be sufficient to identify any form of number.
This solution can also be easily modified if you want only positive numbers, integer values or values accurate to a maximum number of decimal places, etc.
As suggested in Ray's answer, you need to first add a PreviewTextInput
event:
<TextBox PreviewTextInput="TextBox_OnPreviewTextInput"/>
Then put the following in the code behind:
private void TextBox_OnPreviewTextInput(object sender, TextCompositionEventArgs e)
{
var textBox = sender as TextBox;
// Use SelectionStart property to find the caret position.
// Insert the previewed text into the existing text in the textbox.
var fullText = textBox.Text.Insert(textBox.SelectionStart, e.Text);
double val;
// If parsing is successful, set Handled to false
e.Handled = !double.TryParse(fullText, out val);
}
To invalid whitespace, we can add NumberStyles
:
using System.Globalization;
private void TextBox_OnPreviewTextInput(object sender, TextCompositionEventArgs e)
{
var textBox = sender as TextBox;
// Use SelectionStart property to find the caret position.
// Insert the previewed text into the existing text in the textbox.
var fullText = textBox.Text.Insert(textBox.SelectionStart, e.Text);
double val;
// If parsing is successful, set Handled to false
e.Handled = !double.TryParse(fullText,
NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign,
CultureInfo.InvariantCulture,
out val);
}
I had this problem today using any of concat, append or merge, and I got around it by adding a helper column sequentially numbered and then doing an outer join
helper=1
for i in df1.index:
df1.loc[i,'helper']=helper
helper=helper+1
for i in df2.index:
df2.loc[i,'helper']=helper
helper=helper+1
df1.merge(df2,on='helper',how='outer')
var items = Array(523,3452,334,31,...5346);
function rand(min, max) {
var offset = min;
var range = (max - min) + 1;
var randomNumber = Math.floor( Math.random() * range) + offset;
return randomNumber;
}
randomNumber = rand(0, items.length - 1);
randomItem = items[randomNumber];
credit:
For Python 2 use built-in function reload():
reload(module)
For Python 2 and 3.2–3.3 use reload from module imp:
import imp
imp.reload(module)
But imp
is deprecated since version 3.4 in favor of importlib, so use:
import importlib
importlib.reload(module)
or
from importlib import reload
reload(module)
You can simply do conditional check before doing map like
{Array.isArray(this.props.data.participants) && this.props.data.participants.map(function(player) {
return <li key={player.championId}>{player.summonerName}</li>
})
}
Now a days .map can be done in two different ways but still the conditional check is required like
.map with return
{Array.isArray(this.props.data.participants) && this.props.data.participants.map(player => {
return <li key={player.championId}>{player.summonerName}</li>
})
}
.map without return
{Array.isArray(this.props.data.participants) && this.props.data.participants.map(player => (
return <li key={player.championId}>{player.summonerName}</li>
))
}
both the above functionalities does the same
Try
SELECT table.* FROM table
WHERE otherField = 'otherValue'
GROUP BY table.fieldWantedToBeDistinct
limit x
From Pavel and jnm2:
private int DumpApproximateObjectSize(object toWeight)
{
return Marshal.ReadInt32(toWeight.GetType().TypeHandle.Value, 4);
}
On a side note be careful because it only work with contiguous memory objects
MAIN will decide the first activity that will used when the application will start. Launcher will add application in the application dashboard.
If you have them already and you are still getting the error message but maybe its because you might be using more than more category or action in an intent-filter. In an intent filter there can only be one such tag. To add another category, put it in another intent filter, like the following
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<!--
TODO - Add necessary intent filter information so that this
Activity will accept Intents with the
action "android.intent.action.VIEW" and with an "http"
schemed URL
-->
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<data android:scheme="http" />
<category android:name="android.intent.category.BROWSABLE" />
</intent-filter>
I include #include <conio.h>
and then, add getch();
just before the return 0;
line. That's what I learnt at school anyway. The methods mentioned above here are quite different I see.
From the function's definition (http://www.w3schools.com/jsref/jsref_replace.asp):
The replace() method searches a string for a specified value, or a regular expression, and returns a new string where the specified values are replaced.
This method does not change the original string.
Hence, the line: tt.replace(/,/g, '.')
does not change the value of tt
; it just returns the new value.
You need to replace this line with: tt = tt.replace(/,/g, '.')
You are dividing integers then converting to float. Divide by floats instead.
As a bonus, use the awesome string formatting methods described here: http://docs.python.org/library/string.html#format-specification-mini-language
To specify a percent conversion and precision.
>>> float(1) / float(3)
[Out] 0.33333333333333331
>>> 1.0/3.0
[Out] 0.33333333333333331
>>> '{0:.0%}'.format(1.0/3.0) # use string formatting to specify precision
[Out] '33%'
>>> '{percent:.2%}'.format(percent=1.0/3.0)
[Out] '33.33%'
A great gem!
I want to select the text of a string that is located after the occurrence of substring
You could use:
substring-after($string,$match)
If you want a subtring of the above with some length then use:
substring(substring-after($string,$match),1,$length)
But problems begin if there is no ocurrence of the matching substring... So, if you want a substring with specific length located after the occurrence of a substring, or from the whole string if there is no match, you could use:
substring(substring-after($string,substring-before($string,$match)),
string-length($match) * contains($string,$match) + 1,
$length)
Follow these basic steps to fix this problem,
Step 1: Go to Dashboard,
Step 2: Go to "App Review" tab,
Step 3: Enable the "Make test public?" option, Like Below image,
The other answers are correct. But I want to add that it is a relic of the time when people were first learning CSS, and abused float
to do all their layout. float
is meant to do stuff like float images next to long runs of text, but lots of people used it as their primary layout mechanism. Since it wasn't really meant for that, you need hacks like "clearfix" to make it work.
These days display: inline-block
is a solid alternative (except for IE6 and IE7), although more modern browsers are coming with even more useful layout mechanisms under names like flexbox, grid layout, etc.
Why does the error mention tuples?
Others have explained that the problem was the missing ,
, but the final mystery is why does the error message talk about tuples?
The reason is that your:
["pennies", '2.5', '50.0', '.01']
["nickles", '5.0', '40.0', '.05']
can be reduced to:
[][1, 2]
as mentioned by 6502 with the same error.
But then __getitem__
, which deals with []
resolution, converts object[1, 2]
to a tuple:
class C(object):
def __getitem__(self, k):
return k
# Single argument is passed directly.
assert C()[0] == 0
# Multiple indices generate a tuple.
assert C()[0, 1] == (0, 1)
and the implementation of __getitem__
for the list built-in class cannot deal with tuple arguments like that.
More examples of __getitem__
action at: https://stackoverflow.com/a/33086813/895245
$hostname = gethostname();
For PHP < 5.3.0 but >= 4.2.0 use this:
$hostname = php_uname('n');
For PHP < 4.2.0 use this:
$hostname = getenv('HOSTNAME');
if(!$hostname) $hostname = trim(`hostname`);
if(!$hostname) $hostname = exec('echo $HOSTNAME');
if(!$hostname) $hostname = preg_replace('#^\w+\s+(\w+).*$#', '$1', exec('uname -a'));
You need to actually use the shortened array after you remove items from it. You are ignoring the shortened array.
You convert the cookie into an array. You reduce the length of the array and then you never use that shortened array. Instead, you just use the old cookie (the unshortened one).
You should convert the shortened array back to a string with .join(",")
and then use it for the new cookie instead of using old_cookie
which is not shortened.
You may also not be using .splice()
correctly, but I don't know exactly what your objective is for shortening the array. You can read about the exact function of .splice()
here.
I found a way to check whether the input given is an integer or not using atoi() function .
Read the input as a string, and use atoi() function to convert the string in to an integer.
atoi() function returns the integer number if the input string contains integer, else it will return 0. You can check the return value of the atoi() function to know whether the input given is an integer or not.
There are lot more functions to convert a string into long, double etc., Check the standard library "stdlib.h" for more.
Note : It works only for non-zero numbers.
#include<stdio.h>
#include<stdlib.h>
int main() {
char *string;
int number;
printf("Enter a number :");
string = scanf("%s", string);
number = atoi(string);
if(number != 0)
printf("The number is %d\n", number);
else
printf("Not a number !!!\n");
return 0;
}
Packages are just .xar archives with a different extension and a specified file hierarchy. Unfortunately, part of that file hierarchy is a cpio.gz archive of the actual installables, and usually that's what you want to edit. And there's also a Bom file that includes information on the files inside that cpio archive, and a PackageInfo file that includes summary information.
If you really do just need to edit one of the info files, that's simple:
mkdir Foo
cd Foo
xar -xf ../Foo.pkg
# edit stuff
xar -cf ../Foo-new.pkg *
But if you need to edit the installable files:
mkdir Foo
cd Foo
xar -xf ../Foo.pkg
cd foo.pkg
cat Payload | gunzip -dc |cpio -i
# edit Foo.app/*
rm Payload
find ./Foo.app | cpio -o | gzip -c > Payload
mkbom Foo.app Bom # or edit Bom
# edit PackageInfo
rm -rf Foo.app
cd ..
xar -cf ../Foo-new.pkg
I believe you can get mkbom (and lsbom) for most linux distros. (If you can get ditto, that makes things even easier, but I'm not sure if that's nearly as ubiquitously available.)
Here's an example that actually filters for BIN files. Also Windows now want you to save files to user locations, not system locations, so here's an example (you can use intellisense to browse the other options):
var saveFileDialog = new Microsoft.Win32.SaveFileDialog()
{
DefaultExt = "*.xml",
Filter = "BIN Files (*.bin)|*.bin",
InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),
};
var result = saveFileDialog.ShowDialog();
if (result != null && result == true)
{
// Save the file here
}
Hello here is a simple solution,
Just go to File -> Convert to a C/C++ Autotools Project Select your project files appropriately.
Inclusions will be added to your project file
I have been reading through most of the answers here and many of the comments, and I didn't see any reference to the one instance that I could think of where i++
is more efficient than ++i
(and perhaps surprisingly --i
was more efficient than i--
). That is for C compilers for the DEC PDP-11!
The PDP-11 had assembly instructions for pre-decrement of a register and post-increment, but not the other way around. The instructions allowed any "general-purpose" register to be used as a stack pointer. So if you used something like *(i++)
it could be compiled into a single assembly instruction, while *(++i)
could not.
This is obviously a very esoteric example, but it does provide the exception where post-increment is more efficient(or I should say was, since there isn't much demand for PDP-11 C code these days).
Use
[A-Z]?
to make the letter optional. {1}
is redundant. (Of course you could also write [A-Z]{0,1}
which would mean the same, but that's what the ?
is there for.)
You could improve your regex to
^([0-9]{5})+\s+([A-Z]?)\s+([A-Z])([0-9]{3})([0-9]{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])[0-9]{3}([0-9]{4})([0-9]{2})([0-9]{2})
And, since in most regex dialects, \d
is the same as [0-9]
:
^(\d{5})+\s+([A-Z]?)\s+([A-Z])(\d{3})(\d{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])\d{3}(\d{4})(\d{2})(\d{2})
But: do you really need 11 separate capturing groups? And if so, why don't you capture the fourth-to-last group of digits?
The problem obviously was (as you figured it out) that port 36250 wasn't open on the server side at the time you tried to connect (hence connection refused). I can see the server was supposed to open this socket after receiving SEND
command on another connection, but it apparently was "not opening [it] up in sync with the client side".
Well, the main reason would be there was no synchronisation whatsoever. Calling:
cs.send("SEND " + FILE)
cs.close()
would just place the data into a OS buffer; close
would probably flush the data and push into the network, but it would almost certainly return before the data would reach the server. Adding sleep
after close
might mitigate the problem, but this is not synchronisation.
The correct solution would be to make sure the server has opened the connection. This would require server sending you some message back (for example OK
, or better PORT 36250
to indicate where to connect). This would make sure the server is already listening.
The other thing is you must check the return values of send
to make sure how many bytes was taken from your buffer. Or use sendall
.
(Sorry for disturbing with this late answer, but I found this to be a high traffic question and I really didn't like the sleep idea in the comments section.)
HTML :
<div class="span4">
<div class="panel panel-primary">
<div class="panel-heading">jhdsahfjhdfhs</div>
<div class="panel-body panel-height">fdoinfds sdofjohisdfj</div>
</div>
</div>
CSS :
.panel-height {
height: 100px; / change according to your requirement/
}
This error means that the value indexed by the key "l_messages" is not of type hash
, but rather something else. You've probably set it to that other value earlier in your code. Try various other value-getter commands, starting with GET, to see which one works and you'll know what type is actually here.
Can't find anything simple and elegant just yet, but I have one idea: If you know the type of the property you wish to set, you can write your own default(T)
. There are two cases - T
is a value type, and T
is a reference type. You can see this by checking T.IsValueType
. If T
is a reference type, then you can simply set it to null
. If T
is a value type, then it will have a default parameterless constructor that you can call to get a "blank" value.
We had a problem with APC and symlinks to symlinks to files -- it seems to ignore changes in files itself. Somehow performing touch on the file itself helped. I can not tell what's the difference between modifing a file and touching it, but somehow it was necessary...
You could use cross-env to set the port, and it will work on Windows, Linux and Mac.
yarn add -D cross-env
then in package.json the start link could be like this:
"start": "cross-env PORT=3006 react-scripts start",
There is no datetime dtype to be set for read_csv as csv files can only contain strings, integers and floats.
Setting a dtype to datetime will make pandas interpret the datetime as an object, meaning you will end up with a string.
The pandas.read_csv()
function has a keyword argument called parse_dates
Using this you can on the fly convert strings, floats or integers into datetimes using the default date_parser
(dateutil.parser.parser
)
headers = ['col1', 'col2', 'col3', 'col4']
dtypes = {'col1': 'str', 'col2': 'str', 'col3': 'str', 'col4': 'float'}
parse_dates = ['col1', 'col2']
pd.read_csv(file, sep='\t', header=None, names=headers, dtype=dtypes, parse_dates=parse_dates)
This will cause pandas to read col1
and col2
as strings, which they most likely are ("2016-05-05" etc.) and after having read the string, the date_parser for each column will act upon that string and give back whatever that function returns.
The pandas.read_csv()
function also has a keyword argument called date_parser
Setting this to a lambda function will make that particular function be used for the parsing of the dates.
You have to give it the function, not the execution of the function, thus this is Correct
date_parser = pd.datetools.to_datetime
This is incorrect:
date_parser = pd.datetools.to_datetime()
pd.datetools.to_datetime
has been relocated to date_parser = pd.to_datetime
Thanks @stackoverYC
Arrays in JavaScript don't use strings as keys. You will probably find that the value is there, but the key is an integer.
If you make Dict
into an object, this will work:
var dict = {};
var addPair = function (myKey, myValue) {
dict[myKey] = myValue;
};
var giveValue = function (myKey) {
return dict[myKey];
};
The myKey
variable is already a string, so you don't need more quotes.
Use a link and style it like a button:
<a href="#page2" class="ui-btn ui-shadow ui-corner-all">Click this button</a>
@geedoubleya answer is my favorite.
However, I do prefer this
if [[ -f diff.txt && -s diff.txt ]]
then
rm -f empty.txt
touch full.txt
elif [[ -f diff.txt && ! -s diff.txt ]]
then
rm -f full.txt
touch empty.txt
else
echo "File diff.txt does not exist"
fi
$ if [ "$s1" == "$s2" ]; then echo match; fi
match
$ test "s1" = "s2" ;echo match
match
$
BEGIN
-END
blocks are the building blocks of PL/SQL, and each PL/SQL unit is contained within at least one such block. Nesting BEGIN
-END
blocks within PL/SQL blocks is usually done to trap certain exceptions and handle that special exception and then raise unrelated exceptions. Nevertheless, in PL/SQL you (the client) must always issue a commit or rollback for the transaction.
If you wish to have atomic transactions within a PL/SQL containing transaction, you need to declare a PRAGMA AUTONOMOUS_TRANSACTION
in the declaration block. This will ensure that any DML within that block can be committed or rolledback independently of the containing transaction.
However, you cannot declare this pragma for nested blocks. You can only declare this for:
Reference: Oracle
This happened to me when I created a CSV file with OpenOffice Calc. It didn't happen when I created the CSV file in my text editor, even if I later edited it with Calc.
I solved my problem by copy-pasting in my text editor the data from my Calc-created file to a new editor-created file.
One small point: these are not operators. Operators are used in expressions to create new values from existing values (1+2 becomes 3, for example. The * and ** here are part of the syntax of function declarations and calls.
mixin gives a way to add functionality in a class, i.e you can interact with methods defined in a module by including the module inside the desired class. Though ruby doesn't supports multiple inheritance but provides mixin as an alternative to achieve that.
here is an example that explains how multiple inheritance is achieved using mixin.
module A # you create a module
def a1 # lets have a method 'a1' in it
end
def a2 # Another method 'a2'
end
end
module B # let's say we have another module
def b1 # A method 'b1'
end
def b2 #another method b2
end
end
class Sample # we create a class 'Sample'
include A # including module 'A' in the class 'Sample' (mixin)
include B # including module B as well
def S1 #class 'Sample' contains a method 's1'
end
end
samp = Sample.new # creating an instance object 'samp'
# we can access methods from module A and B in our class(power of mixin)
samp.a1 # accessing method 'a1' from module A
samp.a2 # accessing method 'a2' from module A
samp.b1 # accessing method 'b1' from module B
samp.b2 # accessing method 'a2' from module B
samp.s1 # accessing method 's1' inside the class Sample
const absolutePath = path.join(__dirname, some, dir);
vs.
const absolutePath = path.resolve(__dirname, some, dir);
path.join
will concatenate __dirname
which is the directory name of the current file concatenated with values of some
and dir
with platform-specific separator.
Whereas
path.resolve
will process __dirname
, some
and dir
i.e. from right to left prepending it by processing it.
If any of the values of some
or dir
corresponds to a root path then the previous path will be omitted and process rest by considering it as root
In order to better understand the concept let me explain both a little bit more detail as follows:-
The path.join
and path.resolve
are two different methods or functions of the path module provided by nodejs.
Where both accept a list of paths but the difference comes in the result i.e. how they process these paths.
path.join
concatenates all given path segments together using the platform-specific separator as a delimiter, then normalizes the resulting path. While the path.resolve()
process the sequence of paths from right to left, with each subsequent path prepended until an absolute path is constructed.
When no arguments supplied
The following example will help you to clearly understand both concepts:-
My filename is index.js
and the current working directory is E:\MyFolder\Pjtz\node
const path = require('path');
console.log("path.join() : ", path.join());
// outputs .
console.log("path.resolve() : ", path.resolve());
// outputs current directory or equivalent to __dirname
Result
? node index.js
path.join() : .
path.resolve() : E:\MyFolder\Pjtz\node
path.resolve()
method will output the absolute path whereas the path.join()
returns . representing the current working directory if nothing is provided
When some root path is passed as arguments
const path=require('path');
console.log("path.join() : " ,path.join('abc','/bcd'));
console.log("path.resolve() : ",path.resolve('abc','/bcd'));
Result i
? node index.js
path.join() : abc\bcd
path.resolve() : E:\bcd
path.join()
only concatenates the input list with platform-specific separator while the path.resolve()
process the sequence of paths from right to left, with each subsequent path prepended until an absolute path is constructed.
You could just send them through like a browser does, and then parse the html, that is what I have always done, even for things like Youtube.
To generate in the range: {0,..,9}
r=$(( $RANDOM % 10 )); echo $r
To generate in the range: {40,..,49}
r=$(( $RANDOM % 10 + 40 )); echo $r
Here are 2 ways(both are OS independent.)
Using Paths
: Since 1.7
Path p = Paths.get(<Absolute Path of Linux/Windows system>);
String fileName = p.getFileName().toString();
String directory = p.getParent().toString();
Using FilenameUtils
in Apache Commons IO :
String name1 = FilenameUtils.getName("/ab/cd/xyz.txt");
String name2 = FilenameUtils.getName("c:\\ab\\cd\\xyz.txt");
It's a little trickier to do what you're trying to do than I'd prefer, but that's because you don't really directly bind a DataGrid
to a DataTable
.
When you bind DataGrid.ItemsSource
to a DataTable
, you're really binding it to the default DataView
, not to the table itself. This is why, for instance, you don't have to do anything to make a DataGrid
sort rows when you click on a column header - that functionality's baked into DataView
, and DataGrid
knows how to access it (through the IBindingList
interface).
The DataView
implements IEnumerable<DataRowView>
(more or less), and the DataGrid
fills its items by iterating over this. This means that when you've bound DataGrid.ItemsSource
to a DataTable
, its SelectedItem
property will be a DataRowView
, not a DataRow
.
If you know all this, it's pretty straightforward to build a wrapper class that lets you expose properties that you can bind to. There are three key properties:
Table
, the DataTable
,Row
, a two-way bindable property of type DataRowView
, and SearchText
, a string property that, when it's set, will find the first matching DataRowView
in the table's default view, set the Row
property, and raise PropertyChanged
.It looks like this:
public class DataTableWrapper : INotifyPropertyChanged
{
private DataRowView _Row;
private string _SearchText;
public DataTableWrapper()
{
// using a parameterless constructor lets you create it directly in XAML
DataTable t = new DataTable();
t.Columns.Add("id", typeof (int));
t.Columns.Add("text", typeof (string));
// let's acquire some sample data
t.Rows.Add(new object[] { 1, "Tower"});
t.Rows.Add(new object[] { 2, "Luxor" });
t.Rows.Add(new object[] { 3, "American" });
t.Rows.Add(new object[] { 4, "Festival" });
t.Rows.Add(new object[] { 5, "Worldwide" });
t.Rows.Add(new object[] { 6, "Continental" });
t.Rows.Add(new object[] { 7, "Imperial" });
Table = t;
}
// you should have this defined as a code snippet if you work with WPF
private void OnPropertyChanged(string propertyName)
{
PropertyChangedEventHandler h = PropertyChanged;
if (h != null)
{
h(this, new PropertyChangedEventArgs(propertyName));
}
}
public event PropertyChangedEventHandler PropertyChanged;
// SelectedItem gets bound to this two-way
public DataRowView Row
{
get { return _Row; }
set
{
if (_Row != value)
{
_Row = value;
OnPropertyChanged("Row");
}
}
}
// the search TextBox is bound two-way to this
public string SearchText
{
get { return _SearchText; }
set
{
if (_SearchText != value)
{
_SearchText = value;
Row = Table.DefaultView.OfType<DataRowView>()
.Where(x => x.Row.Field<string>("text").Contains(_SearchText))
.FirstOrDefault();
}
}
}
public DataTable Table { get; private set; }
}
And here's XAML that uses it:
<Window x:Class="DataGridSelectionDemo.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:dg="clr-namespace:Microsoft.Windows.Controls;assembly=WPFToolkit"
xmlns:DataGridSelectionDemo="clr-namespace:DataGridSelectionDemo"
Title="DataGrid selection demo"
Height="350"
Width="525">
<Window.DataContext>
<DataGridSelectionDemo:DataTableWrapper />
</Window.DataContext>
<DockPanel>
<Grid DockPanel.Dock="Top">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Label>Text</Label>
<TextBox Grid.Column="1"
Text="{Binding SearchText, Mode=TwoWay}" />
</Grid>
<dg:DataGrid DockPanel.Dock="Top"
ItemsSource="{Binding Table}"
SelectedItem="{Binding Row, Mode=TwoWay}" />
</DockPanel>
</Window>
You need to call tf.global_variables_initializer()
on you session, like
init = tf.global_variables_initializer()
sess.run(init)
Full example is available in this great tutorial https://www.tensorflow.org/get_started/mnist/mechanics
You are probably attempting to use Gmail's servers on port 25 to deliver mail to a third party over an unauthenticated connection. Gmail doesn't let you do this, because then anybody could use Gmail's servers to send mail to anybody else. This is called an open relay and was a common enabler of spam in the early days. Open relays are no longer acceptable on the Internet.
You will need to ask your SMTP client to connect to Gmail using an authenticated connection, probably on port 587.
use jQuery.live() instead . Documentation here
e.g
$("mylink").live("click", function(event) { alert("new link clicked!");});
Currently there is no way to precreate an SQLite database to ship with your apk. The best you can do is save the appropriate SQL as a resource and run them from your application. Yes, this leads to duplication of data (same information exists as a resrouce and as a database) but there is no other way right now. The only mitigating factor is the apk file is compressed. My experience is 908KB compresses to less than 268KB.
The thread below has the best discussion/solution I have found with good sample code.
http://groups.google.com/group/android-developers/msg/9f455ae93a1cf152
I stored my CREATE statement as a string resource to be read with Context.getString() and ran it with SQLiteDatabse.execSQL().
I stored the data for my inserts in res/raw/inserts.sql (I created the sql file, 7000+ lines). Using the technique from the link above I entered a loop, read the file line by line and concactenated the data onto "INSERT INTO tbl VALUE " and did another SQLiteDatabase.execSQL(). No sense in saving 7000 "INSERT INTO tbl VALUE "s when they can just be concactenated on.
It takes about twenty seconds on the emulator, I do not know how long this would take on a real phone, but it only happens once, when the user first starts the application.
According to the php manual you can do this in two ways. It depends what you need to check.
If you want to check if the given key or index exists in the array use array_key_exists
<?php
$search_array = array('first' => 1, 'second' => 4);
if (array_key_exists('first', $search_array)) {
echo "The 'first' element is in the array";
}
?>
If you want to check if a value exists in an array use in_array
<?php
$os = array("Mac", "NT", "Irix", "Linux");
if (in_array("Irix", $os)) {
echo "Got Irix";
}
?>
None is a singleton object (meaning there is only one None), used in many places in the language and library to represent the absence of some other value.
For example:
if d
is a dictionary, d.get(k)
will return d[k]
if it exists, but None
if d
has no key k
.
Read this info from a great blog: http://python-history.blogspot.in/
I'm assuming you're using jquery to make the AJAX call so you can do this pretty easily by putting the redirect in the success like so:
$.ajax({
url: 'ajax_location.html',
success: function(data) {
//this is the redirect
document.location.href='/newpage/';
}
});
.Net Core Class Library is built upon the .Net Standard. .NET Standard you can make only class-library project that cannot be executed standalone and should be referenced by another .NET Core or .NET Framework executable project.If you want to implement a library that is portable to the .Net Framework, .Net Core and Xamarin, choose a .Net Standard Library
(You can make executable project (like Console application, or ASP.NET application) with .NET Framework
It is the new open-source and cross-platform framework to build applications for all operating system including Windows, Mac, and Linux.
Implementation support of .NET Standard[blue] and minimum viable platform for full support of .NET Standard (latest: [https://docs.microsoft.com/en-us/dotnet/standard/net-standard#net-implementation-support])