If you want treeview like explorer, you can go with LightExplorer
Download dll from here and paste it inside plugins folder in notepad++ installed directory. Restart notepad++ and then in menubar goto Plugins ->Light Explorer -> Light Explorer
Change the project interpreter to ~/anaconda2/python/bin
by going to File -> Settings -> Project -> Project Interpreter
. Also update the run configuration to use the project default Python interpreter via Run -> Edit Configurations
. This makes PyCharm
use Anaconda
instead of the default Python interpreter under usr/bin/python27
.
The simplest thing to do is:
Collections.sort(list, String.CASE_INSENSITIVE_ORDER);
Or, use:
sudo apt-get install php5-mcrypt
not sure if this will work on standard PHP installs - I installed php 5.5.7
using the package from :
sudo add-apt-repository ppa:ondrej/php5
sudo apt-get update
Try this:
On first row set value 1 (e.g cell A1
)
on next row set: =A1+1
Finally autocomplete the remaining rows
You are right. This is a badly documented issue. But you can change the font size parameter (by opposition to font scale) directly after building the plot. Check the following example:
import seaborn as sns
tips = sns.load_dataset("tips")
b = sns.boxplot(x=tips["total_bill"])
b.axes.set_title("Title",fontsize=50)
b.set_xlabel("X Label",fontsize=30)
b.set_ylabel("Y Label",fontsize=20)
b.tick_params(labelsize=5)
sns.plt.show()
, which results in this:
To make it consistent in between plots I think you just need to make sure the DPI is the same. By the way it' also a possibility to customize a bit the rc dictionaries since "font.size" parameter exists but I'm not too sure how to do that.
NOTE: And also I don't really understand why they changed the name of the font size variables for axis labels and ticks. Seems a bit un-intuitive.
Use splatting.
$CurlArgument = '-u', '[email protected]:yyyy',
'-X', 'POST',
'https://xxx.bitbucket.org/1.0/repositories/abcd/efg/pull-requests/2229/comments',
'--data', 'content=success'
$CURLEXE = 'C:\Program Files\Git\mingw64\bin\curl.exe'
& $CURLEXE @CurlArgument
There is something explained here :
Add this method in your view controller.
Swift:
func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
if text == "\n" {
textView.resignFirstResponder()
return false
}
return true
}
This method also can be helpful for you:
/**
Dismiss keyboard when tapped outside the keyboard or textView
:param: touches the touches
:param: event the related event
*/
override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
if let touch = touches.anyObject() as? UITouch {
if touch.phase == UITouchPhase.Began {
textField?.resignFirstResponder()
}
}
}
Programs to monitor if a process on a system is running.
Script is stored in crontab
and runs once every minute.
#! /bin/bash
case "$(pidof amadeus.x86 | wc -w)" in
0) echo "Restarting Amadeus: $(date)" >> /var/log/amadeus.txt
/etc/amadeus/amadeus.x86 &
;;
1) # all ok
;;
*) echo "Removed double Amadeus: $(date)" >> /var/log/amadeus.txt
kill $(pidof amadeus.x86 | awk '{print $1}')
;;
esac
0
If process is not found, restart it.
1
If process is found, all ok.
*
If process running 2 or more, kill the last.
It just tests the exit flag $?
from the pidof
program. It will be 0
of process is running and 1
if not.
#!/bin/bash
pidof amadeus.x86 >/dev/null
if [[ $? -ne 0 ]] ; then
echo "Restarting Amadeus: $(date)" >> /var/log/amadeus.txt
/etc/amadeus/amadeus.x86 &
fi
pidof amadeus.x86 >/dev/null ; [[ $? -ne 0 ]] && echo "Restarting Amadeus: $(date)" >> /var/log/amadeus.txt && /etc/amadeus/amadeus.x86 &
cccam oscam
You can use the tableView:willDisplayCell
method to do all the kinds of customization to a tableViewCell.
- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
[cell setSelectionStyle:UITableViewCellSelectionStyleNone];
[cell setUserInteractionEnabled:NO];
if (indexPath.section == 1 && indexPath.row == 0)
{
[cell setSelectionStyle:UITableViewCellSelectionStyleGray];
[cell setUserInteractionEnabled:YES];
}
}
In this above code, the user can only select the first row in the second section of the tableView. The rest all rows can't be selected. Thanks!~
You can write the below code:-
create procedure spCreateTable
as
begin
create table testtb(Name varchar(20))
end
execute it as:-
exec spCreateTable
Since you don't want stretching (all of the other answers ignore that) you can simply set max-width and max-height like in my jsFiddle edit.
#container img {
max-height: 250px;
max-width: 250px;
}
See my example with an image that isn't a square, it doesn't stretch
Just found a proper working solution for other guys,
// Returns true or false based on the radio button checked_x000D_
$('#test1').prop('checked')_x000D_
_x000D_
_x000D_
$('body').on('change','input[type="radio"]',function () {_x000D_
alert('Test1 checked = ' + $('#test1').prop('checked') + '. Test2 checked = ' + $('#test2').prop('checked') + '. Test3 checked = ' + $('#test3').prop('checked'));_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
_x000D_
<input type="radio" runat="server" name="testGroup" id="test1" /><label for="<%=test1.ClientID %>" style="cursor:hand" runat="server">Test1</label>_x000D_
_x000D_
<input type="radio" runat="server" name="testGroup" id="test2" /><label for="<%=test2.ClientID %>" style="cursor:hand" runat="server">Test2</label>_x000D_
_x000D_
<input type="radio" runat="server" name="testGroup" id="test3" /> <label for="<%=test3.ClientID %>" style="cursor:hand">Test3</label>
_x000D_
and in your method you can use like
return $('#test2').prop('checked');
"Ultra JSON" or simply "ujson" can handle having []
in your JSON file input. If you're reading a JSON input file into your program as a list of JSON elements; such as, [{[{}]}, {}, [], etc...]
ujson can handle any arbitrary order of lists of dictionaries, dictionaries of lists.
You can find ujson in the Python package index and the API is almost identical to Python's built-in json
library.
ujson is also much faster if you're loading larger JSON files. You can see the performance details in comparison to other Python JSON libraries in the same link provided.
It's much easier (and faster) to get this information by only parsing the output of ver
:
@echo off
setlocal
for /f "tokens=4-5 delims=. " %%i in ('ver') do set VERSION=%%i.%%j
if "%version%" == "10.0" echo Windows 10
if "%version%" == "6.3" echo Windows 8.1
if "%version%" == "6.2" echo Windows 8.
if "%version%" == "6.1" echo Windows 7.
if "%version%" == "6.0" echo Windows Vista.
rem etc etc
endlocal
This table on MSDN documents which version number corresponds to which Windows product version (this is where you get the 6.1 means Windows 7 information from).
The only drawback of this technique is that it cannot distinguish between the equivalent server and consumer versions of Windows.
I think @ben-rollert's solution is a good solution.
You just have to be careful if you want to use this solution in a function inside a new package.
When developping packages, it's recommended to use the syntaxe packagename::function_name()
(see http://kbroman.org/pkg_primer/pages/depends.html).
In this case, you have to use the version of as.Date()
defined by the zoo
library.
Here is an example :
> devtools::session_info()
Session info ----------------------------------------------------------------------------------------------------------------------------------------------------
setting value
version R version 3.3.1 (2016-06-21)
system x86_64, linux-gnu
ui RStudio (1.0.35)
language (EN)
collate C
tz <NA>
date 2016-11-09
Packages --------------------------------------------------------------------------------------------------------------------------------------------------------
package * version date source
devtools 1.12.0 2016-06-24 CRAN (R 3.3.1)
digest 0.6.10 2016-08-02 CRAN (R 3.2.3)
memoise 1.0.0 2016-01-29 CRAN (R 3.2.3)
withr 1.0.2 2016-06-20 CRAN (R 3.2.3)
> as.Date(zoo::as.yearmon("1989-10", "%Y-%m"))
Error in as.Date.default(zoo::as.yearmon("1989-10", "%Y-%m")) :
do not know how to convert 'zoo::as.yearmon("1989-10", "%Y-%m")' to class “Date”
> zoo::as.Date(zoo::as.yearmon("1989-10", "%Y-%m"))
[1] "1989-10-01"
So if you're developping a package, the good practice is to use :
zoo::as.Date(zoo::as.yearmon("1989-10", "%Y-%m"))
window.location.hash
will return the hash identifier
Add these both permission of read and write, to solve this issue
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
Add this below line in Application tag
android:requestLegacyExternalStorage="true"
The following code is a modified example from React.js website.
Original code is available here: https://reactjs.org/#a-simple-component
class Timer extends React.Component {
constructor(props) {
super(props);
this.state = {
seconds: parseInt(props.startTimeInSeconds, 10) || 0
};
}
tick() {
this.setState(state => ({
seconds: state.seconds + 1
}));
}
componentDidMount() {
this.interval = setInterval(() => this.tick(), 1000);
}
componentWillUnmount() {
clearInterval(this.interval);
}
formatTime(secs) {
let hours = Math.floor(secs / 3600);
let minutes = Math.floor(secs / 60) % 60;
let seconds = secs % 60;
return [hours, minutes, seconds]
.map(v => ('' + v).padStart(2, '0'))
.filter((v,i) => v !== '00' || i > 0)
.join(':');
}
render() {
return (
<div>
Timer: {this.formatTime(this.state.seconds)}
</div>
);
}
}
ReactDOM.render(
<Timer startTimeInSeconds="300" />,
document.getElementById('timer-example')
);
So I know that this post is pretty old, but I figured I may as well add a function that has helped me over the years. Why not just remake the explode function using split as mentioned above? Well here it is:
function explode(str,begin,end)
{
t=str.split(begin);
t=t[1].split(end);
return t[0];
}
This function works well if you are trying to get the values between two values. For instance:
data='[value]insertdataherethatyouwanttoget[/value]';
If you were interested in getting the information from between the two [values] "tags", you could use the function like the following.
out=explode(data,'[value]','[/value]');
//Variable out would display the string: insertdataherethatyouwanttoget
But let's say you don't have those handy "tags" like the example above displayed. No matter.
out=explode(data,'insert','wanttoget');
//Now out would display the string: dataherethatyou
Wana see it in action? Click here.
You can only use await
in an async
method, and Main
cannot be async
.
You'll have to use your own async
-compatible context, call Wait
on the returned Task
in the Main
method, or just ignore the returned Task
and just block on the call to Read
. Note that Wait
will wrap any exceptions in an AggregateException
.
If you want a good intro, see my async
/await
intro post.
Check the link Regular Expression Demo
use the below reg exp
[a-z] + [^0-9\s.]+|.(?!\d)
[function.fopen]: failed to open stream
If you have access to your php.ini file, try enabling Fopen. Find the respective line and set it to be "on": & if in wp e.g localhost/wordpress/function.fopen in the php.ini :
allow_url_fopen = off
should bee this
allow_url_fopen = On
And add this line below it:
allow_url_include = off
should bee this
allow_url_include = on
These are not command line args. Run psql. Manage to log into database (so pass the hostname, port, user and database if needed). And then write it in the psql program.
Example (below are two commands, write the first one, press enter, wait for psql to login, write the second):
psql -h host -p 5900 -U username database
\pset format aligned
Straight from the horse's moutyh: Summary of Product Advertising API Operations which has the following categories:
EncodedParams variable is redefined as params variable will not work. You need to have same predefined call to variable, otherwise it looks possible with a little more work. Cheers! json is not used to its full capabilities in php there are better ways to call json which I don't recall at the moment.
Try the following steps:
1. Make sure you have the latest npm (npm install -g npm).
2. Add an exception to your antivirus to ignore the node_modules folder in your project.
3. $ rm -rf node_modules package-lock.json .
4. $ npm install
Using simple html,
<div>
<object type="text/html" data="http://validator.w3.org/" width="800px" height="600px" style="overflow:auto;border:5px ridge blue">
</object>
</div>
Or jquery,
<script>
$("#mydiv")
.html('<object data="http://your-website-domain"/>');
</script>
Of course it can be accessed as ClassName.var_name
, but only from inside the class in which it is defined - that's because it is defined as private
.
public static
or private static
variables are often used for constants. For example, many people don't like to "hard-code" constants in their code; they like to make a public static
or private static
variable with a meaningful name and use that in their code, which should make the code more readable. (You should also make such constants final
).
For example:
public class Example {
private final static String JDBC_URL = "jdbc:mysql://localhost/shopdb";
private final static String JDBC_USERNAME = "username";
private final static String JDBC_PASSWORD = "password";
public static void main(String[] args) {
Connection conn = DriverManager.getConnection(JDBC_URL,
JDBC_USERNAME, JDBC_PASSWORD);
// ...
}
}
Whether you make it public
or private
depends on whether you want the variables to be visible outside the class or not.
Doing
df.index = pd.to_datetime(df.index, errors='coerce')
the data type of the index has changed to
It's a feature for disturbed personalities who like square boxes.
You insert
1
23
123
but when you select, it pads the values
000001
000023
000123
A few differences:
print
vs println
:
The print
function prints messages in the Xcode console when debugging apps.
The println
is a variation of this that was removed in Swift 2 and is not used any more. If you see old code that is using println
, you can now safely replace it with print
.
Back in Swift 1.x, print
did not add newline characters at the end of the printed string, whereas println
did. But nowadays, print
always adds the newline character at the end of the string, and if you don't want it to do that, supply a terminator
parameter of ""
.
NSLog
:
NSLog
adds a timestamp and identifier to the output, whereas print
will not;
NSLog
statements appear in both the device’s console and debugger’s console whereas print
only appears in the debugger console.
NSLog
in iOS 10-13/macOS 10.12-10.x uses printf
-style format strings, e.g.
NSLog("%0.4f", CGFloat.pi)
that will produce:
2017-06-09 11:57:55.642328-0700 MyApp[28937:1751492] 3.1416
NSLog
from iOS 14/macOS 11 can use string interpolation. (Then, again, in iOS 14 and macOS 11, we would generally favor Logger
over NSLog
. See next point.)
Nowadays, while NSLog
still works, we would generally use “unified logging” (see below) rather than NSLog
.
Effective iOS 14/macOS 11, we have Logger
interface to the “unified logging” system. For an introduction to Logger
, see WWDC 2020 Explore logging in Swift.
To use Logger
, you must import os
:
import os
Like NSLog
, unified logging will output messages to both the Xcode debugging console and the device console, too
Create a Logger
and log
a message to it:
let logger = Logger(subsystem: Bundle.main.bundleIdentifier!, category: "network")
logger.log("url = \(url)")
When you observe the app via the external Console app, you can filter on the basis of the subsystem
and category
. It is very useful to differentiate your debugging messages from (a) those generated by other subsystems on behalf of your app, or (b) messages from other categories or types.
You can specify different types of logging messages, either .info
, .debug
, .error
, .fault
, .critical
, .notice
, .trace
, etc.:
logger.error("web service did not respond \(error.localizedDescription)")
So, if using the external Console app, you can choose to only see messages of certain categories (e.g. only show debugging messages if you choose “Include Debug Messages” on the Console “Action” menu). These settings also dictate many subtle issues details about whether things are logged to disk or not. See WWDC video for more details.
By default, non-numeric data is redacted in the logs. In the example where you logged the URL, if the app were invoked from the device itself and you were watching from your macOS Console app, you would see the following in the macOS Console:
url = <private>
If you are confident that this message will not include user confidential data and you wanted to see the strings in your macOS console, you would have to do:
os_log("url = \(url, privacy: .public)")
Prior to iOS 14/macOS 11, iOS 10/macOS 10.12 introduced os_log
for “unified logging”. For an introduction to unified logging in general, see WWDC 2016 video Unified Logging and Activity Tracing.
Import os.log
:
import os.log
You should define the subsystem
and category
:
let log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "network")
When using os_log
, you would use a printf-style pattern rather than string interpolation:
os_log("url = %@", log: log, url.absoluteString)
You can specify different types of logging messages, either .info
, .debug
, .error
, .fault
(or .default
):
os_log("web service did not respond", type: .error)
You cannot use string interpolation when using os_log
. For example with print
and Logger
you do:
logger.log("url = \(url)")
But with os_log
, you would have to do:
os_log("url = %@", url.absoluteString)
The os_log
enforces the same data privacy, but you specify the public visibility in the printf formatter (e.g. %{public}@
rather than %@
). E.g., if you wanted to see it from an external device, you'd have to do:
os_log("url = %{public}@", url.absoluteString)
You can also use the “Points of Interest” log if you want to watch ranges of activities from Instruments:
let pointsOfInterest = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: .pointsOfInterest)
And start a range with:
os_signpost(.begin, log: pointsOfInterest, name: "Network request")
And end it with:
os_signpost(.end, log: pointsOfInterest, name: "Network request")
For more information, see https://stackoverflow.com/a/39416673/1271826.
Bottom line, print
is sufficient for simple logging with Xcode, but unified logging (whether Logger
or os_log
) achieves the same thing but offers far greater capabilities.
The power of unified logging comes into stark relief when debugging iOS apps that have to be tested outside of Xcode. For example, when testing background iOS app processes like background fetch, being connected to the Xcode debugger changes the app lifecycle. So, you frequently will want to test on a physical device, running the app from the device itself, not starting the app from Xcode’s debugger. Unified logging lets you still watch your iOS device log statements from the macOS Console app.
This problem appear if two software use same port for connecting to the server
try to close the port by cmd according to your operating system
then reboot your Android studio or your Eclipse or your Software.
To read a file Scanner class is recommended.
Scanner scanner = new Scanner(new FileInputStream(fFileName), fEncoding);
try {
while (scanner.hasNextLine()){
System.out.println(scanner.nextLine());
}
}
finally{
scanner.close();
}
Simply Follow as below URL
https://graph.facebook.com/facebook_user_id/picture?type=square
type may be normal,small,medium,large. Or square (f you want to get square picture, the square size is limited to 50x50).
Code:
if(preg_match('/[^a-z_\-0-9]/i', $string))
{
echo "not valid string";
}
Explanation:
The 'i' modifier at the end of the regex is for 'case-insensitive' if you don't put that you will need to add the upper case characters in the code before by doing A-Z
If you use custom formatting and need to concatenate those values elsewhere, you can copy them and Paste Special --> Values elsewhere in the sheet (or on a different sheet), then concatenate those values.
iTerm2 - an alternative to Terminal - has an option to use configurable system-wide hotkey to show/hide (initially set to Alt+Space, disabled by default)
Consider making your route:
_files_manage:
pattern: /files/management/{project}/{user}
defaults: { _controller: AcmeTestBundle:File:manage }
since they are required fields. It will make your url's prettier, and be a bit easier to manage.
Your Controller would then look like
public function projectAction($project, $user)
It is only required if you aren't using the default values for version
and encoding
(which you are in that example).
It sounds like you want to list all the metrics?
SELECT Criteria1, Criteria2, Metric1 As Metric
FROM Table1
UNION ALL
SELECT Criteria1, Criteria2, Metric2 As Metric
FROM Table2
ORDER BY 1, 2
If you only want one Criteria1+Criteria2 combination, group them:
SELECT Criteria1, Criteia2, SUM(Metric) AS Metric
FROM (
SELECT Criteria1, Criteria2, Metric1 As Metric
FROM Table1
UNION ALL
SELECT Criteria1, Criteria2, Metric2 As Metric
FROM Table2
)
ORDER BY Criteria1, Criteria2
Just to add that you can put those headers also to Webpack config file. I needed them as in my case as I was running webpack dev server.
devServer: {
headers: {
"Access-Control-Allow-Origin": "*",
"Access-Control-Allow-Credentials": "true",
"Access-Control-Allow-Methods": "GET,HEAD,OPTIONS,POST,PUT",
"Access-Control-Allow-Headers": "Origin, X-Requested-With, Content-Type, Accept, Authorization"
}
},
I had the same problem and after hours of looking found the answer.
The error I was getting was a little different: <path> already exists and is not a valid git repo
(and added here for SEO value)
The solution is to NOT create the directory that will house the submodule. The directory will be created as part of the git submodule add
command.
Also, the argument is expected to be relative to the parent-repo root, not your working directory, so watch out for that.
Solution for the example above:
common_code
directory does not exist.cd Repo
git submodule add git://url_to_repo projectfolder/common_code/
(Note the required trailing slash.)I hope this helps someone, as there is very little information to be found elsewhere about this.
Numpy arrays do not have an append method. Use the Numpy append function instead:
import numpy as np
array_3 = np.append(array_1, array_2, axis=n)
# you can either specify an integer axis value n or remove the keyword argument completely
For example, if array_1 and array_2 have the following values:
array_1 = np.array([1, 2])
array_2 = np.array([3, 4])
If you call np.append without specifying an axis value, like so:
array_3 = np.append(array_1, array_2)
array_3 will have the following value:
array([1, 2, 3, 4])
Else, if you call np.append with an axis value of 0, like so:
array_3 = np.append(array_1, array_2, axis=0)
array_3 will have the following value:
array([[1, 2],
[3, 4]])
More information on the append function here: https://docs.scipy.org/doc/numpy/reference/generated/numpy.append.html
Java does have pointers. Any time you create an object in Java, you're actually creating a pointer to the object; this pointer could then be set to a different object or to null
, and the original object will still exist (pending garbage collection).
What you can't do in Java is pointer arithmetic. You can't dereference a specific memory address or increment a pointer.
If you really want to get low-level, the only way to do it is with the Java Native Interface; and even then, the low-level part has to be done in C or C++.
You can also convert from one file type to another using the following command :
iconv -f original_charset -t new_charset originalfile > newfile
e.g.
iconv -f utf-16le -t utf-8 file1.txt > file2.txt
Objects will be passed by reference irrespective of within methods of same class or another class. Here is a modified version of same sample code to help you understand. The value will be changed to 'xyz.'
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
public class Employee
{
public string Name { get; set; }
}
public class MyClass
{
public Employee EmpObj;
public void SetObject(Employee obj)
{
EmpObj = obj;
}
}
public class Program
{
static void Main(string[] args)
{
Employee someTestObj = new Employee();
someTestObj.Name = "ABC";
MyClass cls = new MyClass();
cls.SetObject(someTestObj);
Console.WriteLine("Changing Emp Name To xyz");
someTestObj.Name = "xyz";
Console.WriteLine("Accessing Assigned Emp Name");
Console.WriteLine(cls.EmpObj.Name);
Console.ReadLine();
}
}
}
Yes. In Ruby the not equal to operator is:
!=
You can get a full list of ruby operators here: https://www.tutorialspoint.com/ruby/ruby_operators.htm.
The Angular6 equivalent code should be:
app.component.html
<div (mouseover)="changeText=true" (mouseout)="changeText=false">
<span *ngIf="!changeText">Hide</span>
<span *ngIf="changeText">Show</span>
</div>
app.component.ts
@Component({
selector: 'app-main',
templateUrl: './app.component.html'
})
export class AppComponent {
changeText: boolean;
constructor() {
this.changeText = false;
}
}
Notice that there is no such thing as $scope
anymore as it existed in AngularJS. Its been replaced with member variables from the component class. Also, there is no scope resolution algorithm based on prototypical inheritance either - it either resolves to a component class member, or it doesn't.
In my case, I had an async property in LoadingService
with a BehavioralSubject isLoading
Using the [hidden] model works, but *ngIf fails
<h1 [hidden]="!(loaderService.isLoading | async)">
THIS WORKS FINE
(Loading Data)
</h1>
<h1 *ngIf="!(loaderService.isLoading | async)">
THIS THROWS ERROR
(Loading Data)
</h1>
In Activity:
@Override
protected void onCreate(Bundle savedInstanceState) {
image = (ImageView) findViewById(R.id.imageButton);
image.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
try {
SimpleDateFormat sdfPic = new SimpleDateFormat(DATE_FORMAT);
currentDateandTime = sdfPic.format(new Date()).replace(" ", "");
File imagesFolder = new File(IMAGE_PATH, currentDateandTime);
imagesFolder.mkdirs();
Random generator = new Random();
int n = 10000;
n = generator.nextInt(n);
String fname = IMAGE_NAME + n + IMAGE_FORMAT;
File file = new File(imagesFolder, fname);
outputFileUri = Uri.fromFile(file);
cameraIntent= new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
startActivityForResult(cameraIntent, CAMERA_DATA);
}catch(Exception e) {
e.printStackTrace();
}
}
});
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch(requestCode) {
case CAMERA_DATA :
final int IMAGE_MAX_SIZE = 300;
try {
// Bitmap bitmap;
File file = null;
FileInputStream fis;
BitmapFactory.Options opts;
int resizeScale;
Bitmap bmp;
file = new File(outputFileUri.getPath());
// This bit determines only the width/height of the
// bitmap
// without loading the contents
opts = new BitmapFactory.Options();
opts.inJustDecodeBounds = true;
fis = new FileInputStream(file);
BitmapFactory.decodeStream(fis, null, opts);
fis.close();
// Find the correct scale value. It should be a power of
// 2
resizeScale = 1;
if (opts.outHeight > IMAGE_MAX_SIZE
|| opts.outWidth > IMAGE_MAX_SIZE) {
resizeScale = (int) Math.pow(2, (int) Math.round(Math.log(IMAGE_MAX_SIZE/ (double) Math.max(opts.outHeight, opts.outWidth)) / Math.log(0.5)));
}
// Load pre-scaled bitmap
opts = new BitmapFactory.Options();
opts.inSampleSize = resizeScale;
fis = new FileInputStream(file);
bmp = BitmapFactory.decodeStream(fis, null, opts);
Bitmap getBitmapSize = BitmapFactory.decodeResource(
getResources(), R.drawable.male);
image.setLayoutParams(new RelativeLayout.LayoutParams(
200,200));//(width,height);
image.setImageBitmap(bmp);
image.setRotation(90);
fis.close();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 70, baos);
imageByte = baos.toByteArray();
break;
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
in layout.xml:
enter code here
<RelativeLayout
android:id="@+id/relativeLayout2"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/imageButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/XXXXXXX"
android:textAppearance="?android:attr/textAppearanceSmall" />
in manifest.xml:
<uses-permission android:name="android.permission.CAMERA" /> <uses-feature android:name="android.hardware.camera" />
As I read your question, I have tried without success to search on the Internet how Bearer tokens are encrypted or signed. I guess bearer tokens are not hashed (maybe partially, but not completely) because in that case, it will not be possible to decrypt it and retrieve users properties from it.
But your question seems to be trying to find answers on Bearer token functionality:
Suppose I am implementing an authorization provider, can I supply any kind of string for the bearer token? Can it be a random string? Does it has to be a base64 encoding of some attributes? Should it be hashed?
So, I'll try to explain how Bearer tokens and Refresh tokens work:
When user requests to the server for a token sending user and password through SSL, the server returns two things: an Access token and a Refresh token.
An Access token is a Bearer token that you will have to add in all request headers to be authenticated as a concrete user.
Authorization: Bearer <access_token>
An Access token is an encrypted string with all User properties, Claims and Roles that you wish. (You can check that the size of a token increases if you add more roles or claims). Once the Resource Server receives an access token, it will be able to decrypt it and read these user properties. This way, the user will be validated and granted along with all the application.
Access tokens have a short expiration (ie. 30 minutes). If access tokens had a long expiration it would be a problem, because theoretically there is no possibility to revoke it. So imagine a user with a role="Admin" that changes to "User". If a user keeps the old token with role="Admin" he will be able to access till the token expiration with Admin rights. That's why access tokens have a short expiration.
But, one issue comes in mind. If an access token has short expiration, we have to send every short period the user and password. Is this secure? No, it isn't. We should avoid it. That's when Refresh tokens appear to solve this problem.
Refresh tokens are stored in DB and will have long expiration (example: 1 month).
A user can get a new Access token (when it expires, every 30 minutes for example) using a refresh token, that the user had received in the first request for a token. When an access token expires, the client must send a refresh token. If this refresh token exists in DB, the server will return to the client a new access token and another refresh token (and will replace the old refresh token by the new one).
In case a user Access token has been compromised, the refresh token of that user must be deleted from DB. This way the token will be valid only till the access token expires because when the hacker tries to get a new access token sending the refresh token, this action will be denied.
tv_nsec
is the sleep time in nanoseconds. 500000us = 500000000ns, so you want:
nanosleep((const struct timespec[]){{0, 500000000L}}, NULL);
You can add a span to your html and css .
Here's an example from my code ...
HTML ( JSX ):
<input type="radio" name="AMPM" id="radiostyle1" value="AM" checked={this.state.AMPM==="AM"} onChange={this.handleChange}/>
<label for="radiostyle1"><span></span> am </label>
<input type="radio" name="AMPM" id="radiostyle2" value="PM" checked={this.state.AMPM==="PM"} onChange={this.handleChange}/>
<label for="radiostyle2"><span></span> pm </label>
CSS to make standard radio button vanish on screen and superimpose custom button image:
input[type="radio"] {
opacity:0;
}
input[type="radio"] + label {
font-size:1em;
text-transform: uppercase;
color: white ;
cursor: pointer;
margin:auto 15px auto auto;
}
input[type="radio"] + label span {
display:inline-block;
width:30px;
height:10px;
margin:1px 0px 0 -30px;
cursor:pointer;
border-radius: 20%;
}
input[type="radio"] + label span {
background-color: #FFFFFF
}
input[type="radio"]:checked + label span{
background-color: #660006;
}
function _showModalDialog(url, width, height, closeCallback) {
var modalDiv,
dialogPrefix = window.showModalDialog ? 'dialog' : '',
unit = 'px',
maximized = width === true || height === true,
w = width || 600,
h = height || 500,
border = 5,
taskbar = 40, // windows taskbar
header = 20,
x,
y;
if (maximized) {
x = 0;
y = 0;
w = screen.width;
h = screen.height;
} else {
x = window.screenX + (screen.width / 2) - (w / 2) - (border * 2);
y = window.screenY + (screen.height / 2) - (h / 2) - taskbar - border;
}
var features = [
'toolbar=no',
'location=no',
'directories=no',
'status=no',
'menubar=no',
'scrollbars=no',
'resizable=no',
'copyhistory=no',
'center=yes',
dialogPrefix + 'width=' + w + unit,
dialogPrefix + 'height=' + h + unit,
dialogPrefix + 'top=' + y + unit,
dialogPrefix + 'left=' + x + unit
],
showModal = function (context) {
if (context) {
modalDiv = context.document.createElement('div');
modalDiv.style.cssText = 'top:0;right:0;bottom:0;left:0;position:absolute;z-index:50000;';
modalDiv.onclick = function () {
if (context.focus) {
context.focus();
}
return false;
}
window.top.document.body.appendChild(modalDiv);
}
},
removeModal = function () {
if (modalDiv) {
modalDiv.onclick = null;
modalDiv.parentNode.removeChild(modalDiv);
modalDiv = null;
}
};
// IE
if (window.showModalDialog) {
window.showModalDialog(url, null, features.join(';') + ';');
if (closeCallback) {
closeCallback();
}
// Other browsers
} else {
var win = window.open(url, '', features.join(','));
if (maximized) {
win.moveTo(0, 0);
}
// When charging the window.
var onLoadFn = function () {
showModal(this);
},
// When you close the window.
unLoadFn = function () {
window.clearInterval(interval);
if (closeCallback) {
closeCallback();
}
removeModal();
},
// When you refresh the context that caught the window.
beforeUnloadAndCloseFn = function () {
try {
unLoadFn();
}
finally {
win.close();
}
};
if (win) {
// Create a task to check if the window was closed.
var interval = window.setInterval(function () {
try {
if (win == null || win.closed) {
unLoadFn();
}
} catch (e) { }
}, 500);
if (win.addEventListener) {
win.addEventListener('load', onLoadFn, false);
} else {
win.attachEvent('load', onLoadFn);
}
window.addEventListener('beforeunload', beforeUnloadAndCloseFn, false);
}
}
}
from pyspark.sql.types import IntegerType
data_df = data_df.withColumn("Plays", data_df["Plays"].cast(IntegerType()))
data_df = data_df.withColumn("drafts", data_df["drafts"].cast(IntegerType()))
You can run loop for each column but this is the simplest way to convert string column into integer.
Try to add next define at start of your .c file:
#define _GNU_SOURCE
It helped me with pipe2 function.
Inside your makefile:
target:
if test -d dir; then echo "hello world!"; else mkdir dir; fi
You need to use the library project located at: ANDROID-SDK-DIRECTORY/extras/google/google_play_services/libproject
This will fix your first issue.
I'm not sure about your second, but it may be a side effect of the first. I am still trying to get the map working in my own app :)
Yes, presumably it wants the path to the javadoc
command line tool that comes with the JDK (in the bin directory, same as java
and javac
).
Eclipse should be able to find it automatically; are you perhaps running it on a JRE? That would explain the request.
use Illuminate\Database\Eloquent\Builder;
$query = Customers::with('orders');
$query = $query->whereHas('orders', function (Builder $query) use ($request) {
$query = $query->where('orders.customer_id', 'NULL')
});
$query = $query->get();
For getting the buffer size in c/c++ program the following is the flow
int n;
unsigned int m = sizeof(n);
int fdsocket;
fdsocket = socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP); // example
getsockopt(fdsocket,SOL_SOCKET,SO_RCVBUF,(void *)&n, &m);
// now the variable n will have the socket size
You are asking about the &&
operator, not the if
statement.
&&
short-circuits, meaning that if while working it meets a condition which results in only one answer, it will stop working and use that answer.
So, 0 && x
will execute 0
, then terminate because there is no way for the expression to evaluate non-zero regardless of what is the second parameter to &&
.
URL url = new URL(yourUrl, "/api/v1/status.xml");
According to the javadocs this constructor just appends whatever resource to the end of your domain, so you would want to create 2 urls:
URL domain = new URL("http://example.com");
URL url = new URL(domain + "/files/resource.xml");
Sources: http://docs.oracle.com/javase/6/docs/api/java/net/URL.html
What Mocha options are you using?
Maybe it is something to do with reporter (-R) or ui (-ui) being used?
console.log(msg);
works fine during my test runs, though sometimes mixed in a little goofy. Presumably due to the async nature of the test run.
Here are the options (mocha.opts) I'm using:
--require should
-R spec
--ui bdd
Hmm..just tested without any mocha.opts and console.log
still works.
I couldn't resist - the other answers are undoubtedly true, but you really can't walk past the following code:
var a? = 1;_x000D_
var a = 2;_x000D_
var ?a = 3;_x000D_
if(a?==1 && a== 2 &&?a==3) {_x000D_
console.log("Why hello there!")_x000D_
}
_x000D_
Note the weird spacing in the if
statement (that I copied from your question). It is the half-width Hangul (that's Korean for those not familiar) which is an Unicode space character that is not interpreted by ECMA script as a space character - this means that it is a valid character for an identifier. Therefore there are three completely different variables, one with the Hangul after the a, one with it before and the last one with just a. Replacing the space with _
for readability, the same code would look like this:
var a_ = 1;_x000D_
var a = 2;_x000D_
var _a = 3;_x000D_
if(a_==1 && a== 2 &&_a==3) {_x000D_
console.log("Why hello there!")_x000D_
}
_x000D_
Check out the validation on Mathias' variable name validator. If that weird spacing was actually included in their question, I feel sure that it's a hint for this kind of answer.
Don't do this. Seriously.
Edit: It has come to my attention that (although not allowed to start a variable) the Zero-width joiner and Zero-width non-joiner characters are also permitted in variable names - see Obfuscating JavaScript with zero-width characters - pros and cons?.
This would look like the following:
var a= 1;_x000D_
var a?= 2; //one zero-width character_x000D_
var a??= 3; //two zero-width characters (or you can use the other one)_x000D_
if(a==1&&a?==2&&a??==3) {_x000D_
console.log("Why hello there!")_x000D_
}
_x000D_
Another option, just for the heck of it would be:
if ( $('#myFav > *').length > 0 ) {
// do something
}
May actually be the fastest since it strictly uses the Sizzle engine and not necessarily any jQuery, as it were. Could be wrong though. Nevertheless, it works.
l[index] if index < len(l) else default
To support negative indices we can use:
l[index] if -len(l) <= index < len(l) else default
Actually Thread.start()
creates a new thread and have its own execution scenario.
Thread.start()
calls the run()
method asynchronously,which changes the state of new Thread to Runnable.
But Thread.run()
does not create any new thread. Instead it execute the run method in the current running thread synchronously.
If you are using Thread.run()
then you are not using the features of multi threading at all.
Many people have answered this correctly but here is another way which actually not only covers 1-99 but it actually goes above any data range but it does not cover decimals.
Note: this was tested using python 3.7
def convert(num):
units = ("", "one ", "two ", "three ", "four ","five ", "six ", "seven ","eight ", "nine ", "ten ", "eleven ", "twelve ", "thirteen ", "fourteen ", "fifteen ","sixteen ", "seventeen ", "eighteen ", "nineteen ")
tens =("", "", "twenty ", "thirty ", "forty ", "fifty ","sixty ","seventy ","eighty ","ninety ")
if num < 0:
return "minus "+convert(-num)
if num<20:
return units[num]
if num<100:
return tens[num // 10] +units[int(num % 10)]
if num<1000:
return units[num // 100] +"hundred " +convert(int(num % 100))
if num<1000000:
return convert(num // 1000) + "thousand " + convert(int(num % 1000))
if num < 1000000000:
return convert(num // 1000000) + "million " + convert(int(num % 1000000))
return convert(num // 1000000000)+ "billion "+ convert(int(num % 1000000000))
print(convert(100001333))
Steps using XAMPP GUI:
Step-1: Click on Config button
Step-2: Click on Service and Port Settings button
Final step: Change your port and Save
This is what i did. It works like butter.
1) Add CoreText.framework to your Frameworks.
2) import <CoreText/CoreText.h> in the class where you need underlined label.
3) Write the following code.
NSMutableAttributedString *attString = [[NSMutableAttributedString alloc] initWithString:@"My Messages"];
[attString addAttribute:(NSString*)kCTUnderlineStyleAttributeName
value:[NSNumber numberWithInt:kCTUnderlineStyleSingle]
range:(NSRange){0,[attString length]}];
self.myMsgLBL.attributedText = attString;
self.myMsgLBL.textColor = [UIColor whiteColor];
Per the developers, this error is not an actual failure, but rather "misleading error reports". This bug is fixed in version 40, which is available on the canary and dev channels as of 25 Oct.
No you can't do if in CSS, but you can choose which style sheet you will use
Here is an example :
<!--[if IE 6]>
Special instructions for IE 6 here
<![endif]-->
will use only for IE 6 here is the website where it is from http://www.quirksmode.org/css/condcom.html , only IE has conditional comments. Other browser do not, although there are some properties you can use for Firefox starting with -moz or for safari starting with -webkit. You can use javascript to detect which browser you're using and use javascript if for whatever actions you want to perform but that is a bad idea, since it can be disabled.
For setting the first color to be seen on screen, you can also do it in the relevant layout.xml (better design) by adding this property to the relevant View:
android:background="#FF00FF00"
You are trying to write to system folders. With ADB you have root (admin) access so you see the system folders of which sdcard is one of them so to send a picture you could use
D:\Program Files\Android\sdk\platform-tools\adb push am files\android sdk\adb.exe push C:\Downloads\anand.jpg /sdcard/pictures/
NB: C:\Downloads\anand.jpg replace with path and name to picture..
When your are trying to apply prod on string type of value like:
['-214' '-153' '-58' ..., '36' '191' '-37']
you will get the error.
Solution:
Append only integer value like [1,2,3]
, and you will get your expected output.
If the value is in string format before appending then, in the array you can convert the type into int
type and store it in a list
.
What I learn about promises is to use it only as return values avoid referencing them if possible. async/await syntax is particularly practical for that. Today all latest browsers and node support it: https://caniuse.com/#feat=async-functions , is a simple behavior and the code is like reading synchronous code, forget about callbacks...
In cases I do need to reference a promises is when creation and resolution happen at independent/not-related places. So instead an artificial association and probably an event listener just to resolve the "distant" promise, I prefer to expose the promise as a Deferred, which the following code implements it in valid es5
/**
* Promise like object that allows to resolve it promise from outside code. Example:
*
```
class Api {
fooReady = new Deferred<Data>()
private knower() {
inOtherMoment(data=>{
this.fooReady.resolve(data)
})
}
}
```
*/
var Deferred = /** @class */ (function () {
function Deferred(callback) {
var instance = this;
this.resolve = null;
this.reject = null;
this.status = 'pending';
this.promise = new Promise(function (resolve, reject) {
instance.resolve = function () { this.status = 'resolved'; resolve.apply(this, arguments); };
instance.reject = function () { this.status = 'rejected'; reject.apply(this, arguments); };
});
if (typeof callback === 'function') {
callback.call(this, this.resolve, this.reject);
}
}
Deferred.prototype.then = function (resolve) {
return this.promise.then(resolve);
};
Deferred.prototype.catch = function (r) {
return this.promise.catch(r);
};
return Deferred;
}());
transpiled form a typescript project of mine:
For more complex cases I often use these guy small promise utilities without dependencies tested and typed. p-map has been useful several times. I think he covered most use cases:
https://github.com/sindresorhus?utf8=%E2%9C%93&tab=repositories&q=promise&type=source&language=
I run into the same error message when trying to install SQL Developer from "Windows 64-bit with JDK 8 included" zip file in my Windows 10 Enterprise.
Launching the most recent SQL Developer version 4.1.3 in Windows 10 shows an error:
Unable to launch the Java Virtual Machine Located at path:
C:\Users\<USER>\Downloads\sqldeveloper-4.1.3.20.78-x64\sqldeveloper\jdk\jre\bin\server\jvm.dll
The path exists and is valid.
The same zip file works on Windows 7 Professional.
The problem was a missing msvcr100.dll
.
I simply copied C:\Program Files\Oracle\VirtualBox\msvrc100.dll
to C:\Users\<USER>\Downloads\sqldeveloper-4.1.3.20.78-x64\sqldeveloper\sqldeveloper\bin\
and SQL Developer started to work.
The details can be found from Issue running SQL Developer x64 4.1.3 with JDK.
Funny that Oracle VirtualBox team can include the dll into the installation package but Oracle SQL Developer team can't.
The <h:outputLink>
renders a fullworthy HTML <a>
element with the proper URL in the href
attribute which fires a bookmarkable GET request. It cannot directly invoke a managed bean action method.
<h:outputLink value="destination.xhtml">link text</h:outputLink>
The <h:commandLink>
renders a HTML <a>
element with an onclick
script which submits a (hidden) POST form and can invoke a managed bean action method. It's also required to be placed inside a <h:form>
.
<h:form>
<h:commandLink value="link text" action="destination" />
</h:form>
The ?faces-redirect=true
parameter on the <h:commandLink>
, which triggers a redirect after the POST (as per the Post-Redirect-Get pattern), only improves bookmarkability of the target page when the link is actually clicked (the URL won't be "one behind" anymore), but it doesn't change the href
of the <a>
element to be a fullworthy URL. It still remains #
.
<h:form>
<h:commandLink value="link text" action="destination?faces-redirect=true" />
</h:form>
Since JSF 2.0, there's also the <h:link>
which can take a view ID (a navigation case outcome) instead of an URL. It will generate a HTML <a>
element as well with the proper URL in href
.
<h:link value="link text" outcome="destination" />
So, if it's for pure and bookmarkable page-to-page navigation like the SO username link, then use <h:outputLink>
or <h:link>
. That's also better for SEO since bots usually doesn't cipher POST forms nor JS code. Also, UX will be improved as the pages are now bookmarkable and the URL is not "one behind" anymore.
When necessary, you can do the preprocessing job in the constructor or @PostConstruct
of a @RequestScoped
or @ViewScoped
@ManagedBean
which is attached to the destination page in question. You can make use of @ManagedProperty
or <f:viewParam>
to set GET parameters as bean properties.
You have to do some encoding before using fit. As it was told fit() does not accept Strings but you solve this.
There are several classes that can be used :
Personally I have post almost the same question on StackOverflow some time ago. I wanted to have a scalable solution but didn't get any answer. I selected OneHotEncoder that binarize all the strings. It is quite effective but if you have a lot different strings the matrix will grow very quickly and memory will be required.
Using the AWS SDK use the getObjectMetadata method. The method will throw an AmazonServiceException if the key doesn't exist.
private AmazonS3 s3;
...
public boolean exists(String path, String name) {
try {
s3.getObjectMetadata(bucket, getS3Path(path) + name);
} catch(AmazonServiceException e) {
return false;
}
return true;
}
I used this code where you subtract 0.5 from the number and when you round it, it is the original number rounded down.
round(a-0.5)
A more general approach:
if ( ($("body").hasClass("homepage") || $("body").hasClass("contact")) && (theLanguage == 'en-gb') ) {
// Do something
}
Because of the thousand separator, the data will have been read as 'non-numeric'. So you need to convert it:
we <- gsub(",", "", we) # remove comma
we <- as.numeric(we) # turn into numbers
and now you can do
hist(we)
and other numeric operations.
As seen in Install crontab on CentOS, the crontab package in CentOS is vixie-cron
. Hence, do install it with:
yum install vixie-cron
And then start it with:
service crond start
To make it persistent, so that it starts on boot, use:
chkconfig crond on
On CentOS 7 you need to use cronie
:
yum install cronie
On CentOS 6 you can install vixie-cron
, but the real package is cronie
:
yum install vixie-cron
and
yum install cronie
In both cases you get the same output:
.../...
==================================================================
Package Arch Version Repository Size
==================================================================
Installing:
cronie x86_64 1.4.4-12.el6 base 73 k
Installing for dependencies:
cronie-anacron x86_64 1.4.4-12.el6 base 30 k
crontabs noarch 1.10-33.el6 base 10 k
exim x86_64 4.72-6.el6 epel 1.2 M
Transaction Summary
==================================================================
Install 4 Package(s)
For setting the name of an existing anonymous function:
(Based on @Marcosc's answer)
var anonymous = function() { return true; }
var name = 'someName';
var strFn = anonymous.toString().replace('function ', 'return function ' + name);
var fn = new Function(strFn)();
console.log(fn()); // —> true
Demo.
Note: Don't do it ;/
I would recommend 422. It's not part of the main HTTP spec, but it is defined by a public standard (WebDAV) and it should be treated by browsers the same as any other 4xx status code.
From RFC 4918:
The 422 (Unprocessable Entity) status code means the server understands the content type of the request entity (hence a 415(Unsupported Media Type) status code is inappropriate), and the syntax of the request entity is correct (thus a 400 (Bad Request) status code is inappropriate) but was unable to process the contained instructions. For example, this error condition may occur if an XML request body contains well-formed (i.e., syntactically correct), but semantically erroneous, XML instructions.
Most easy way..
//div[@class="Test"]
Assuming you want to find <div class="Test">
as described.
I believe you want to use DATEPART('hour', datetime)
.
Reference is here:
SELECT product FROM Your_table_name WHERE Product LIKE '%XYZ%';
The above statement will show result from a single table. If you want to add more tables then simply use the UNION statement.
SELECT product FROM Table_name_1
WHERE Product LIKE '%XYZ%'
UNION
SELECT product FROM Table_name_2
WHERE Product LIKE '%XYZ%'
UNION
SELECT product FROM Table_name_3
WHERE Product LIKE '%XYZ%'
... and so on
Use numpy.dot
or a.dot(b)
. See the documentation here.
>>> a = np.array([[ 5, 1 ,3],
[ 1, 1 ,1],
[ 1, 2 ,1]])
>>> b = np.array([1, 2, 3])
>>> print a.dot(b)
array([16, 6, 8])
This occurs because numpy arrays are not matrices, and the standard operations *, +, -, /
work element-wise on arrays. Instead, you could try using numpy.matrix
, and *
will be treated like matrix multiplication.
Also know there are other options:
As noted below, if using python3.5+ the @
operator works as you'd expect:
>>> print(a @ b)
array([16, 6, 8])
If you want overkill, you can use numpy.einsum
. The documentation will give you a flavor for how it works, but honestly, I didn't fully understand how to use it until reading this answer and just playing around with it on my own.
>>> np.einsum('ji,i->j', a, b)
array([16, 6, 8])
As of mid 2016 (numpy 1.10.1), you can try the experimental numpy.matmul
, which works like numpy.dot
with two major exceptions: no scalar multiplication but it works with stacks of matrices.
>>> np.matmul(a, b)
array([16, 6, 8])
numpy.inner
functions the same way as numpy.dot
for matrix-vector multiplication but behaves differently for matrix-matrix and tensor multiplication (see Wikipedia regarding the differences between the inner product and dot product in general or see this SO answer regarding numpy's implementations).
>>> np.inner(a, b)
array([16, 6, 8])
# Beware using for matrix-matrix multiplication though!
>>> b = a.T
>>> np.dot(a, b)
array([[35, 9, 10],
[ 9, 3, 4],
[10, 4, 6]])
>>> np.inner(a, b)
array([[29, 12, 19],
[ 7, 4, 5],
[ 8, 5, 6]])
If you have tensors (arrays of dimension greater than or equal to one), you can use numpy.tensordot
with the optional argument axes=1
:
>>> np.tensordot(a, b, axes=1)
array([16, 6, 8])
Don't use numpy.vdot
if you have a matrix of complex numbers, as the matrix will be flattened to a 1D array, then it will try to find the complex conjugate dot product between your flattened matrix and vector (which will fail due to a size mismatch n*m
vs n
).
the lockforConfiguration
is set in your code, where you declare your AVCaptureDevice
is a property.
[videoCaptureDevice lockForConfiguration:nil];
use hibernate annotation
@ColumnDefault("-1")
private Long clientId;
See docs.python.org:
When you’re done with a file, call f.close() to close it and free up any system resources taken up by the open file. After calling f.close(), attempts to use the file object will automatically fail.
Hence use close()
elegantly with try/finally
:
f = open('file.txt', 'r')
try:
# do stuff with f
finally:
f.close()
This ensures that even if # do stuff with f
raises an exception, f
will still be closed properly.
Note that open
should appear outside of the try
. If open
itself raises an exception, the file wasn't opened and does not need to be closed. Also, if open
raises an exception its result is not assigned to f
and it is an error to call f.close()
.
I had the same exception in the simulator (Android Studio on OSX) but connecting to the same URL on the iOS simulator worked fine... Looks like it all stemmed from the fact I'd be running the simulator whilst connected to a personal hotspot for my internet connection and then came back later while connected to wifi and the simulator didn't like the new internet connection for some reason, seems like it thought the old hotspot was the current connection, which was no longer working..
Closing and relaunching the simulator worked!
A Python 2/3 portable solution
To calculate a checksum (md5, sha1, etc.), you must open the file in binary mode, because you'll sum bytes values:
To be py27/py3 portable, you ought to use the io
packages, like this:
import hashlib
import io
def md5sum(src):
md5 = hashlib.md5()
with io.open(src, mode="rb") as fd:
content = fd.read()
md5.update(content)
return md5
If your files are big, you may prefer to read the file by chunks to avoid storing the whole file content in memory:
def md5sum(src, length=io.DEFAULT_BUFFER_SIZE):
md5 = hashlib.md5()
with io.open(src, mode="rb") as fd:
for chunk in iter(lambda: fd.read(length), b''):
md5.update(chunk)
return md5
The trick here is to use the iter()
function with a sentinel (the empty string).
The iterator created in this case will call o [the lambda function] with no arguments for each call to its
next()
method; if the value returned is equal to sentinel,StopIteration
will be raised, otherwise the value will be returned.
If your files are really big, you may also need to display progress information. You can do that by calling a callback function which prints or logs the amount of calculated bytes:
def md5sum(src, callback, length=io.DEFAULT_BUFFER_SIZE):
calculated = 0
md5 = hashlib.md5()
with io.open(src, mode="rb") as fd:
for chunk in iter(lambda: fd.read(length), b''):
md5.update(chunk)
calculated += len(chunk)
callback(calculated)
return md5
I just want to add that if the constructor is called from a different file, then something as simple as forgetting to export the constructor with
module.exports = NAME_OF_CONSTRUCTOR
will also cause the "Not a constructor" exception.
It's true that Messagebox.show("dd");
is not a part of using System.Web;
,
I felt the same situation for most of time. If you want to do this then do the following steps.
go for add reference, then choose .NET tab
And select, System.windows.forms (press 's' to find quickly)
u can get the namespace, now u can use Messagebox.show("dd");
But I recommend to go with javascript alert for this.
I think autocomplete=off
is supported in HTML 5.
Ask yourself why you want to do this though - it may make sense in some situations but don't do it just for the sake of doing it.
It's less convenient for users and not even a security issue in OS X (mentioned by Soren below). If you're worried about people having their passwords stolen remotely - a keystroke logger could still do it even though your app uses autcomplete=off
.
As a user who chooses to have a browser remember (most of) my information, I'd find it annoying if your site didn't remember mine.
As an alternative to writing to a file, how about writing to a table? Instead of calling DBMS_OUTPUT.PUT_LINE you could call your own DEBUG.OUTPUT procedure something like:
procedure output (p_text varchar2) is
pragma autonomous_transaction;
begin
if g_debugging then
insert into debug_messages (username, datetime, text)
values (user, sysdate, p_text);
commit;
end if;
end;
The use of an autonomous transaction allows you to retain debug messages produced from transactions that get rolled back (e.g. after an exception is raised), as would happen if you were using a file.
The g_debugging boolean variable is a package variable that can be defaulted to false and set to true when debug output is required.
Of course, you need to manage that table so that it doesn't grow forever! One way would be a job that runs nightly/weekly and deletes any debug messages that are "old".
This is what i just used, i like how clean it is :-)
$('select').val(function(){
var nextOption = $(this).children(':selected').next();
return $(nextOption).val();
}).change();
You can't manipulate :after
, because it's not technically part of the DOM and therefore is inaccessible by any JavaScript. But you can add a new class with a new :after
specified.
CSS:
.pageMenu .active.changed:after {
/* this selector is more specific, so it takes precedence over the other :after */
border-top-width: 22px;
border-left-width: 22px;
border-right-width: 22px;
}
JS:
$('.pageMenu .active').toggleClass('changed');
UPDATE: while it's impossible to directly modify the :after
content, there are ways to read and/or override it using JavaScript. See "Manipulating CSS pseudo-elements using jQuery (e.g. :before and :after)" for a comprehensive list of techniques.
I think this is best link for your solution to update postgres to 9.6
https://sandymadaan.wordpress.com/2017/02/21/upgrade-postgresql9-3-9-6-in-ubuntu-retaining-the-databases/
You can use: Thread.currentThread().isAlive();
. Returns true if this thread is alive; false otherwise.
Does React re-render all components and sub-components every time setState is called?
By default - yes.
There is a method boolean shouldComponentUpdate(object nextProps, object nextState), each component has this method and it's responsible to determine "should component update (run render function)?" every time you change state or pass new props from parent component.
You can write your own implementation of shouldComponentUpdate method for your component, but default implementation always returns true - meaning always re-run render function.
Quote from official docs http://facebook.github.io/react/docs/component-specs.html#updating-shouldcomponentupdate
By default, shouldComponentUpdate always returns true to prevent subtle bugs when the state is mutated in place, but if you are careful to always treat the state as immutable and to read-only from props and state in render() then you can override shouldComponentUpdate with an implementation that compares the old props and state to their replacements.
Next part of your question:
If so, why? I thought the idea was that React only rendered as little as needed - when the state changed.
There are two steps of what we may call "render":
Virtual DOM renders: when render method is called it returns a new virtual dom structure of the component. As I mentioned before, this render method is called always when you call setState(), because shouldComponentUpdate always returns true by default. So, by default, there is no optimization here in React.
Native DOM renders: React changes real DOM nodes in your browser only if they were changed in the Virtual DOM and as little as needed - this is that great React's feature which optimizes real DOM mutation and makes React fast.
Laravel 5 uses .env
file to configure your app. .env
should not be committed on your repository, like github or bitbucket. On your local environment your .env
will look like the following:
# .env
APP_ENV=local
For your production server, you might have the following config:
# .env
APP_ENV=production
As serialization doesn't work generally (only when the order of properties matches: JSON.stringify({a:1,b:2}) !== JSON.stringify({b:2,a:1})
) you have to check the count of properties and compare each property as well:
const objectsEqual = (o1, o2) =>_x000D_
Object.keys(o1).length === Object.keys(o2).length _x000D_
&& Object.keys(o1).every(p => o1[p] === o2[p]);_x000D_
_x000D_
const obj1 = { name: 'John', age: 33};_x000D_
const obj2 = { age: 33, name: 'John' };_x000D_
const obj3 = { name: 'John', age: 45 };_x000D_
_x000D_
console.log(objectsEqual(obj1, obj2)); // true_x000D_
console.log(objectsEqual(obj1, obj3)); // false
_x000D_
If you need a deep comparison, you can call the function recursively:
const obj1 = { name: 'John', age: 33, info: { married: true, hobbies: ['sport', 'art'] } };_x000D_
const obj2 = { age: 33, name: 'John', info: { hobbies: ['sport', 'art'], married: true } };_x000D_
const obj3 = { name: 'John', age: 33 };_x000D_
_x000D_
const objectsEqual = (o1, o2) => _x000D_
typeof o1 === 'object' && Object.keys(o1).length > 0 _x000D_
? Object.keys(o1).length === Object.keys(o2).length _x000D_
&& Object.keys(o1).every(p => objectsEqual(o1[p], o2[p]))_x000D_
: o1 === o2;_x000D_
_x000D_
console.log(objectsEqual(obj1, obj2)); // true_x000D_
console.log(objectsEqual(obj1, obj3)); // false
_x000D_
Then it's easy to use this function to compare objects in arrays:
const arr1 = [obj1, obj1];
const arr2 = [obj1, obj2];
const arr3 = [obj1, obj3];
const arraysEqual = (a1, a2) =>
a1.length === a2.length && a1.every((o, idx) => objectsEqual(o, a2[idx]));
console.log(arraysEqual(arr1, arr2)); // true
console.log(arraysEqual(arr1, arr3)); // false
Please make sure the names are correct, thus changing component
in boot.js to components
.
Call parent.remove(panel)
, where parent
is the container that you want the frame in and panel
is the panel you want to add.
I know this is a bit old, but in case another beginner is going through this, I'll share some code that covers a bit more of the basic operations, here is another example that also includes the option to cancel the process and also report to the user the status of the process. I'm going to add on top of the code given by Alex Aza in the solution above
public Form1()
{
InitializeComponent();
backgroundWorker1.DoWork += backgroundWorker1_DoWork;
backgroundWorker1.ProgressChanged += backgroundWorker1_ProgressChanged;
backgroundWorker1.RunWorkerCompleted += backgroundWorker1_RunWorkerCompleted; //Tell the user how the process went
backgroundWorker1.WorkerReportsProgress = true;
backgroundWorker1.WorkerSupportsCancellation = true; //Allow for the process to be cancelled
}
//Start Process
private void button1_Click(object sender, EventArgs e)
{
backgroundWorker1.RunWorkerAsync();
}
//Cancel Process
private void button2_Click(object sender, EventArgs e)
{
//Check if background worker is doing anything and send a cancellation if it is
if (backgroundWorker1.IsBusy)
{
backgroundWorker1.CancelAsync();
}
}
private void backgroundWorker1_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e)
{
for (int i = 0; i < 100; i++)
{
Thread.Sleep(1000);
backgroundWorker1.ReportProgress(i);
//Check if there is a request to cancel the process
if (backgroundWorker1.CancellationPending)
{
e.Cancel = true;
backgroundWorker1.ReportProgress(0);
return;
}
}
//If the process exits the loop, ensure that progress is set to 100%
//Remember in the loop we set i < 100 so in theory the process will complete at 99%
backgroundWorker1.ReportProgress(100);
}
private void backgroundWorker1_ProgressChanged(object sender, System.ComponentModel.ProgressChangedEventArgs e)
{
progressBar1.Value = e.ProgressPercentage;
}
private void backgroundWorker1_RunWorkerCompleted(object sender, System.ComponentModel.RunWorkerCompletedEventArgs e)
{
if (e.Cancelled)
{
lblStatus.Text = "Process was cancelled";
}
else if (e.Error != null)
{
lblStatus.Text = "There was an error running the process. The thread aborted";
}
else
{
lblStatus.Text = "Process was completed";
}
}
I got here trying to run a program I just compiled using CMake. When I try to run it, it complains saying:
dyld: Library not loaded: libboost_system.dylib
Referenced from: /Users/path/to/my/executable
Reason: image not found
I circumvented the problem telling CMake to use the static version of Boost, instead of letting it use the dynamic one:
set(Boost_USE_STATIC_LIBS ON)
I tried the solution priyanka.sarkar mentioned and the didn't quite get it working as the OP asked. Here's the solution I ended up with:
SELECT ID,
SUBSTRING((
SELECT ',' + T2.SomeColumn
FROM @T T2
WHERE WHERE T1.id = T2.id
FOR XML PATH('')), 2, 1000000)
FROM @T T1
GROUP BY ID
Here is the Koltin style, I use this in my project and it works very well:
this.yourview.setOnTouchListener(View.OnTouchListener { _, event ->
val x = event.x
val y = event.y
when(event.action) {
MotionEvent.ACTION_DOWN -> {
Log.d(TAG, "ACTION_DOWN \nx: $x\ny: $y")
}
MotionEvent.ACTION_MOVE -> {
Log.d(TAG, "ACTION_MOVE \nx: $x\ny: $y")
}
MotionEvent.ACTION_UP -> {
Log.d(TAG, "ACTION_UP \nx: $x\ny: $y")
}
}
return@OnTouchListener true
})
This does it:
Do
c = c + 1
Loop While Cells(c, "A").Value <> ""
'prints the last empty row
Debug.Print c
try
link_with 'YouTarget1', 'YouTarget2' ...
My project worked, the targets suddenly stopped compiling. Then added "link_with" and returned to normal.
Apparently, now it just connects to the first target, is what the link says:
TextBox1.ForeColor = Color.Red;
TextBox1.Font.Bold = True;
Or this can be done using a CssClass (recommended):
.highlight
{
color:red;
font-weight:bold;
}
TextBox1.CssClass = "highlight";
Or the styles can be added inline:
TextBox1.Attributes["style"] = "color:red; font-weight:bold;";
You can insert into a table from a SELECT.
INSERT INTO
Employee (emp_id, emp_name, emp_address, emp_state, emp_position, emp_manager)
SELECT
001,
'John Doe',
'1 River Walk, Green Street',
(SELECT id FROM state WHERE name = 'New York'),
(SELECT id FROM positions WHERE name = 'Sales Executive'),
(SELECT id FROM manager WHERE name = 'Barry Green')
FROM
dual
Or, similarly...
INSERT INTO
Employee (emp_id, emp_name, emp_address, emp_state, emp_position, emp_manager)
SELECT
001,
'John Doe',
'1 River Walk, Green Street',
state.id,
positions.id,
manager.id
FROM
state
CROSS JOIN
positions
CROSS JOIN
manager
WHERE
state.name = 'New York'
AND positions.name = 'Sales Executive'
AND manager.name = 'Barry Green'
Though this one does assume that all the look-ups exist. If, for example, there is no position name 'Sales Executive', nothing would get inserted with this version.
This writes a Byte Order Mark at the start of the file, which is unnecessary in a UTF-8 file and some applications (in my case, SAP) don't like it. Solution here: Can I export excel data with UTF-8 without BOM?
I'm not sure if this will work exactly, but I thought of
var docwrite = function(doc) {
document.write(doc);
};
This solved the problem with the error messages for me.
Same issue on a Galaxy Tab and on a Xperia S, after uninstall and install again it seems that disappear.
The code that suddenly appear to raise this problem is this:
public void unlockMainActivity() {
SharedPreferences prefs = getSharedPreferences("CALCULATOR_PREFS", 0);
boolean hasCode = prefs.getBoolean("HAS_CODE", false);
Context context = this.getApplicationContext();
Intent intent = null;
if (!hasCode) {
intent = new Intent(context, WellcomeActivity.class);
} else {
intent = new Intent(context, CalculatingActivity.class);
}
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
(context).startActivity(intent);
}
This is working fine in firefox at least.
The problem I was facing is, that I got an XML object in stead of a plain text string. Reading an xml-file from my local drive works fine (same directory as the html), so I do not see why reading a text file would be an issue.
I figured that I need to tell jquery to pass a string in stead of an XML object. Which is what I did, and it finally worked:
function readFiles()
{
$.get('file.txt', function(data) {
alert(data);
}, "text");
}
Note the addition of '"text"' at the end. This tells jquery to pass the contents of 'file.txt' as a string in stead of an XML object. The alert box will show the contents of the text file. If you remove the '"text"' at the end, the alert box will say 'XML object'.
I liked user4101525's answer best in theory but it doesn't actually work. Selection is not an overlay so you see whatever is under the control
Ramgy Borja's answer doesn't deal with the fact that default style is not actually a color at all so applying it doesn't help. This handles the default style and works if applying your own colors (which may be what edhubbell refers to as nasty results)
dgv.RowsDefaultCellStyle.SelectionBackColor = dgv.RowsDefaultCellStyle.BackColor.IsEmpty ? System.Drawing.Color.White : dgv.RowsDefaultCellStyle.BackColor;
dgv.RowsDefaultCellStyle.SelectionForeColor = dgv.RowsDefaultCellStyle.ForeColor.IsEmpty ? System.Drawing.Color.Black : dgv.RowsDefaultCellStyle.ForeColor;
Validate the INPUT.
$time = strtotime($_POST['dateFrom']);
if ($time) {
$new_date = date('Y-m-d', $time);
echo $new_date;
} else {
echo 'Invalid Date: ' . $_POST['dateFrom'];
// fix it.
}
Iterative solution as an alternative:
def traverse_nested_dict(d):
iters = [d.iteritems()]
while iters:
it = iters.pop()
try:
k, v = it.next()
except StopIteration:
continue
iters.append(it)
if isinstance(v, dict):
iters.append(v.iteritems())
else:
yield k, v
d = {"a": 1, "b": 2, "c": {"d": 3, "e": {"f": 4}}}
for k, v in traverse_nested_dict(d):
print k, v
output=[]
trends=list(set(trends))
If you don't want to be IDE dependent and want to work directly with the command line, you can use 'jdb' (Java Debugger)
As mentioned by Samuel with small modification (set suspend=y instead of suspend=n, y means yes which suspends the program and not run it so you that can set breakpoints to debug it, if suspend=n means it may run the program to completion before you can even debug it)
On the directory which contains your pom.xml, execute:
mvn exec:exec -Dexec.executable="java" -Dexec.args="-classpath %classpath -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=1044 com.mycompany.app.App"
Then, open up a new terminal and execute:
jdb -attach 1044
You can then use jdb to debug your program!=)
There are a lot of answer above which will definitely help you but (after 2 days of afford and research on adb memory tools) I think i can help with my opinion too.
As Hackbod says : Thus if you were to take all of the physical RAM actually mapped in to each process, and add up all of the processes, you would probably end up with a number much greater than the actual total RAM. so there is no way you can get exact amount of memory per process.
But you can get close to it by some logic..and I will tell how..
There are some API like
android.os.Debug.MemoryInfo
andActivityManager.getMemoryInfo()
mentioned above which you already might have being read about and used but I will talk about other way
So firstly you need to be a root user to get it work. Get into console with root privilege by executing su
in process and get its output and input stream
. Then pass id\n
(enter) in ouputstream and write it to process output, If will get an inputstream containing uid=0
, you are root user.
Now here is the logic which you will use in above process
When you get ouputstream of process pass you command (procrank, dumpsys meminfo etc...) with \n
instead of id and get its inputstream
and read, store the stream in bytes[ ] ,char[ ] etc.. use raw data..and you are done!!!!!
permission :
<uses-permission android:name="android.permission.FACTORY_TEST"/>
Check if you are root user :
// su command to get root access
Process process = Runtime.getRuntime().exec("su");
DataOutputStream dataOutputStream =
new DataOutputStream(process.getOutputStream());
DataInputStream dataInputStream =
new DataInputStream(process.getInputStream());
if (dataInputStream != null && dataOutputStream != null) {
// write id to console with enter
dataOutputStream.writeBytes("id\n");
dataOutputStream.flush();
String Uid = dataInputStream.readLine();
// read output and check if uid is there
if (Uid.contains("uid=0")) {
// you are root user
}
}
Execute your command with su
Process process = Runtime.getRuntime().exec("su");
DataOutputStream dataOutputStream =
new DataOutputStream(process.getOutputStream());
if (dataOutputStream != null) {
// adb command
dataOutputStream.writeBytes("procrank\n");
dataOutputStream.flush();
BufferedInputStream bufferedInputStream =
new BufferedInputStream(process.getInputStream());
// this is important as it takes times to return to next line so wait
// else you with get empty bytes in buffered stream
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
e.printStackTrace();
}
// read buffered stream into byte,char etc.
byte[] bff = new byte[bufferedInputStream.available()];
bufferedInputStream.read(bff);
bufferedInputStream.close();
}
}
You get a raw data in a single string from console instead of in some instance from any API,which is complex to store as you will need to separate it manually.
This is just a try, please suggest me if I missed something
There's no need to use a third-party library since Google introduced the TextInputLayout
as part of the design-support-library
.
Following a basic example:
<android.support.design.widget.TextInputLayout
android:id="@+id/text_input_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:errorEnabled="true">
<android.support.design.widget.TextInputEditText
android:id="@+id/edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter your name" />
</android.support.design.widget.TextInputLayout>
Note: By setting app:errorEnabled="true"
as an attribute of the TextInputLayout
it won't change it's size once an error is displayed - so it basically blocks the space.
In order to show the Error below the EditText
you simply need to call #setError
on the TextInputLayout
(NOT on the child EditText
):
TextInputLayout til = (TextInputLayout) findViewById(R.id.text_input_layout);
til.setError("You need to enter a name");
To hide the error and reset the tint simply call til.setError(null)
.
In order to use the TextInputLayout
you have to add the following to your build.gradle
dependencies:
dependencies {
compile 'com.android.support:design:25.1.0'
}
By default the line of the EditText
will be red. If you need to display a different color you can use the following code as soon as you call setError
.
editText.getBackground().setColorFilter(getResources().getColor(R.color.red_500_primary), PorterDuff.Mode.SRC_ATOP);
To clear it simply call the clearColorFilter
function, like this:
editText.getBackground().clearColorFilter();
It should be noted that if you use push --force
with mutiple refs, they will ALL be modified as a result. Make sure to pay attention to where your git repo is configured to push to. Fortunately there is a way to safeguard the process slightly, by specifying a single branch to update. Read from the git man pages:
Note that --force applies to all the refs that are pushed, hence using it with push.default set to matching or with multiple push destinations configured with remote.*.push may overwrite refs other than the current branch (including local refs that are strictly behind their remote counterpart). To force a push to only one branch, use a + in front of the refspec to push (e.g git push origin +master to force a push to the master branch).
American currency can easily be represented with dollar and cent amounts. Integers are 100% precise, while floating point binary numbers do not exactly match floating point decimals.
You do it exactly as you showed with this line:
get.setHeader("Content-Type", "application/x-zip");
So your header is fine and the problem is some other input to the web service. You'll want to debug that on the server side.
I had this problem. Couldn't install apk via the Downloads app. However opening the apk in a file manager app allowed me to install it fine. Using OI File Manager on stock Nexus 7 4.2.1
I finally found my maven repo mirror is down. I changed to another one, problem solved.
Best C# Telnet Lib I've found is called Minimalistic Telnet. Very easy to understand, use and modify. It works great for the Cisco routers I need to configure.
You can use an optional parameter of JSON.stringify()
JSON.stringify(value[, replacer [, space]])
Parameters
- value The value to convert to a JSON string.
- replacer If a function, transforms values and properties encountered while stringifying; if an array, specifies the set of properties included in objects in the final string. A detailed description of the replacer function is provided in the javaScript guide article Using native JSON.
- space Causes the resulting string to be pretty-printed.
For example:
JSON.stringify({a:1,b:2,c:{d:3, e:4}},null," ")
will give you following result:
"{
"a": 1,
"b": 2,
"c": {
"d": 3,
"e": 4
}
}"
The global variable should be declare in config/initializers
directory
COLOURS = %w(white blue black red green)
If you loaded the resource using the visual studio UI, then you should be able to do this:
picturebox.Image = project.Properties.Resources.imgfromresource
If you are trying to create a File from some ready path (saved in database, per example) using Linux separator, what should I do?
Maybe just use the path do create the file:
new File("/shared/folder/file.jpg");
But Windows use a different separator (\
). So, is the alternative convert the slash separator to platform independent? Like:
new File(convertPathToPlatformIndependent("/shared/folder"));
This method convertPathToPlatformIndependent
probably will have some kind of split by "/" and join with File.separator.
Well, for me, that's not nice for a language that is platform independent (right?) and Java already support the use of /
on Windows or Linux. But if you are working with paths and need to remember to this conversion every single time this will be a nightmare and you won't have any real gain for the application on the future (maybe in the universe that @Pointy described).
What I need is to use Docker with MariaDb on different port /3301/ on my Ubuntu machine because I already had MySql installed and running on 3306.
To do this after half day searching did it using:
docker run -it -d -p 3301:3306 -v ~/mdbdata/mariaDb:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=root --name mariaDb mariadb
This pulls the image with latest MariaDb, creates container called mariaDb, and run mysql on port 3301. All data of which is located in home directory in /mdbdata/mariaDb.
To login in mysql after that can use:
mysql -u root -proot -h 127.0.0.1 -P3301
Used sources are:
The answer of Iarks in this article /using -it -d was the key :) /
how-to-install-and-use-docker-on-ubuntu-16-04
installing-and-using-mariadb-via-docker
mariadb-and-docker-use-cases-part-1
Good luck all!
I solved my case with this solution. Did just insert a new parameter createDatabaseIfNotExist=true on a spring.datasource.url property on an application.properties file, like this:
spring.datasource.url=jdbc:mysql://localhost:3306/minhasenha?autoReconnect=true&useSSL=false&createDatabaseIfNotExist=true
I have the src/main/resources/Schema.sql with DDL to create the database schema. And I did use flyaway to create and maintain the tables.
I founded this solution here: original answer
Alternatively, you can use some java-to-c translator (e.g., JCGO) and compile the generated C files to a native binary (.exe) file for the target platform.
cat /opt/gitlab/version-manifest.txt |grep gitlab-ce|awk '{print $2}'
Yet another free 3rd party tool that is capable of minimizing the console window at any time (not only when starting the script) is Tcl with the TWAPI extension:
echo package require twapi;twapi::minimize_window [twapi::get_console_window] | tclkitsh -
here tclkitsh.exe
is in the PATH and is one of the tclkit-cli-*-twapi-*.exe
files downloadable from sourceforge.net/projects/twapi/files/Tcl binaries/Tclkits with TWAPI/. I prefer it to the much lighter min.exe
mentioned in Bernard Chen's answer because I use TWAPI for countless other purposes already.
First, you'll need to add session_start()
at the top of any page that you wish to use SESSION
variables on.
Also, you should check to make sure the variable is set first before using it:
if(isset($_SESSION['SESS_fname'])){
echo $_SESSION['SESS_fname'];
}
Or, simply:
echo (isset($_SESSION['SESS_fname']) ? $_SESSION['SESS_fname'] : "Visitor");
Basic Availability: The database appears to work most of the time.
Soft State: Stores don’t have to be write-consistent or mutually consistent all the time.
Eventual consistency: Data should always be consistent, with regards how any number of changes are performed.
If an URL pattern starts with /
, then it's relative to the context root. The /Admin/*
URL pattern would only match pages on http://localhost:8080/EMS2/Admin/*
(assuming that /EMS2
is the context path), but you have them actually on http://localhost:8080/EMS2/faces/Html/Admin/*
, so your URL pattern never matches.
You need to prefix your URL patterns with /faces/Html
as well like so:
<url-pattern>/faces/Html/Admin/*</url-pattern>
You can alternatively also just reconfigure your web project structure/configuration so that you can get rid of the /faces/Html
path in the URLs so that you can just open the page by for example http://localhost:8080/EMS2/Admin/Upload.xhtml
.
Your filter mapping syntax is all fine. However, a simpler way to specify multiple URL patterns is to just use only one <filter-mapping>
with multiple <url-pattern>
entries:
<filter-mapping>
<filter-name>LoginFilter</filter-name>
<url-pattern>/faces/Html/Employee/*</url-pattern>
<url-pattern>/faces/Html/Admin/*</url-pattern>
<url-pattern>/faces/Html/Supervisor/*</url-pattern>
</filter-mapping>
If "remove duplicates" means "remove duplicates, but let one there", a solution might be to apply the array_unique(...)
on the "identifier column" first and then to remove in the original array all the keys, that have been removed from the column array:
$array = [
[
'id' => '123',
'foo' => 'aaa',
'bar' => 'bbb'
],
[
'id' => '123',
'foo' => 'ccc',
'bar' => 'ddd'
],
[
'id' => '567',
'foo' => 'eee',
'bar' => 'fff'
]
];
$ids = array_column($array, 'id');
$ids = array_unique($ids);
$array = array_filter($array, function ($key, $value) use ($ids) {
return in_array($value, array_keys($ids));
}, ARRAY_FILTER_USE_BOTH);
The result is:
Array
(
[0] => Array
(
[id] => 123
[foo] => aaa
[bar] => bbb
)
[2] => Array
(
[id] => 567
[foo] => eee
[bar] => fff
)
)
Use std::find
, something like:
if (std::find(std::begin(my_list), std::end(my_list), my_var) != std::end(my_list))
// my_list has my_var
Yes, you can enforce the constraint only when the value is not NULL. This can be easily tested with the following example:
CREATE DATABASE t;
USE t;
CREATE TABLE parent (id INT NOT NULL,
PRIMARY KEY (id)
) ENGINE=INNODB;
CREATE TABLE child (id INT NULL,
parent_id INT NULL,
FOREIGN KEY (parent_id) REFERENCES parent(id)
) ENGINE=INNODB;
INSERT INTO child (id, parent_id) VALUES (1, NULL);
-- Query OK, 1 row affected (0.01 sec)
INSERT INTO child (id, parent_id) VALUES (2, 1);
-- ERROR 1452 (23000): Cannot add or update a child row: a foreign key
-- constraint fails (`t/child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY
-- (`parent_id`) REFERENCES `parent` (`id`))
The first insert will pass because we insert a NULL in the parent_id
. The second insert fails because of the foreign key constraint, since we tried to insert a value that does not exist in the parent
table.
Avoid using event.persist()
- you want to let React recycle the synthetic event. I think the cleanest way whether you use classes or hooks is to split the callback into two pieces:
Classes
handleMouseOver = throttle(target => {
console.log(target);
}, 1000);
onMouseOver = e => {
this.handleMouseOver(e.target);
};
<div onMouseOver={this.onMouseOver} />
Functions
const handleMouseOver = useRef(throttle(target => {
console.log(target);
}, 1000));
function onMouseOver(e) {
handleMouseOver.current(e.target);
}
<div onMouseOver={this.onMouseOver} />
Note that if your handleMouseOver
function uses state from within the component, you should use useMemo
instead of useRef
and pass those as dependencies otherwise you will be working with stale data (does not apply to classes of course).
The accepted answer did not take into account single digit returned hexadecimal codes. This is easily adjusted by:
function numHex(s)
{
var a = s.toString(16);
if ((a.length % 2) > 0) {
a = "0" + a;
}
return a;
}
and
function strHex(s)
{
var a = "";
for (var i=0; i<s.length; i++) {
a = a + numHex(s.charCodeAt(i));
}
return a;
}
I believe the above answers have been posted numerous times by others in one form or another. I wrap these in a toHex() function like so:
function toHex(s)
{
var re = new RegExp(/^\s*(\+|-)?((\d+(\.\d+)?)|(\.\d+))\s*$/);
if (re.test(s)) {
return '#' + strHex( s.toString());
}
else {
return 'A' + strHex(s);
}
}
Note that the numeric regular expression came from 10+ Useful JavaScript Regular Expression Functions to improve your web applications efficiency.
Update: After testing this thing several times I found an error (double quotes in the RegExp), so I fixed that. HOWEVER! After quite a bit of testing and having read the post by almaz - I realized I could not get negative numbers to work.
Further - I did some reading up on this and since all JavaScript numbers are stored as 64 bit words no matter what - I tried modifying the numHex code to get the 64 bit word. But it turns out you can not do that. If you put "3.14159265" AS A NUMBER into a variable - all you will be able to get is the "3", because the fractional portion is only accessible by multiplying the number by ten(IE:10.0) repeatedly. Or to put that another way - the hexadecimal value of 0xF causes the floating point value to be translated into an integer before it is ANDed which removes everything behind the period. Rather than taking the value as a whole (i.e.: 3.14159265) and ANDing the floating point value against the 0xF value.
So the best thing to do, in this case, is to convert the 3.14159265 into a string and then just convert the string. Because of the above, it also makes it easy to convert negative numbers because the minus sign just becomes 0x26 on the front of the value.
So what I did was on determining that the variable contains a number - just convert it to a string and convert the string. This means to everyone that on the server side you will need to unhex the incoming string and then to determine the incoming information is numeric. You can do that easily by just adding a "#" to the front of numbers and "A" to the front of a character string coming back. See the toHex() function.
Have fun!
After another year and a lot of thinking, I decided that the "toHex" function (and I also have a "fromHex" function) really needed to be revamped. The whole question was "How can I do this more efficiently?" I decided that a to/from hexadecimal function should not care if something is a fractional part but at the same time it should ensure that fractional parts are included in the string.
So then the question became, "How do you know you are working with a hexadecimal string?". The answer is simple. Use the standard pre-string information that is already recognized around the world.
In other words - use "0x". So now my toHex function looks to see if that is already there and if it is - it just returns the string that was sent to it. Otherwise, it converts the string, number, whatever. Here is the revised toHex function:
/////////////////////////////////////////////////////////////////////////////
// toHex(). Convert an ASCII string to hexadecimal.
/////////////////////////////////////////////////////////////////////////////
toHex(s)
{
if (s.substr(0,2).toLowerCase() == "0x") {
return s;
}
var l = "0123456789ABCDEF";
var o = "";
if (typeof s != "string") {
s = s.toString();
}
for (var i=0; i<s.length; i++) {
var c = s.charCodeAt(i);
o = o + l.substr((c>>4),1) + l.substr((c & 0x0f),1);
}
return "0x" + o;
}
This is a very fast function that takes into account single digits, floating point numbers, and even checks to see if the person is sending a hex value over to be hexed again. It only uses four function calls and only two of those are in the loop. To un-hex the values you use:
/////////////////////////////////////////////////////////////////////////////
// fromHex(). Convert a hex string to ASCII text.
/////////////////////////////////////////////////////////////////////////////
fromHex(s)
{
var start = 0;
var o = "";
if (s.substr(0,2).toLowerCase() == "0x") {
start = 2;
}
if (typeof s != "string") {
s = s.toString();
}
for (var i=start; i<s.length; i+=2) {
var c = s.substr(i, 2);
o = o + String.fromCharCode(parseInt(c, 16));
}
return o;
}
Like the toHex() function, the fromHex() function first looks for the "0x" and then it translates the incoming information into a string if it isn't already a string. I don't know how it wouldn't be a string - but just in case - I check. The function then goes through, grabbing two characters and translating those in to ASCII characters. If you want it to translate Unicode, you will need to change the loop to going by four(4) characters at a time. But then you also need to ensure that the string is NOT divisible by four. If it is - then it is a standard hexadecimal string. (Remember the string has "0x" on the front of it.)
A simple test script to show that -3.14159265, when converted to a string, is still -3.14159265.
<?php
echo <<<EOD
<html>
<head><title>Test</title>
<script>
var a = -3.14159265;
alert( "A = " + a );
var b = a.toString();
alert( "B = " + b );
</script>
</head>
<body>
</body>
</html>
EOD;
?>
Because of how JavaScript works in respect to the toString() function, all of those problems can be eliminated which before were causing problems. Now all strings and numbers can be converted easily. Further, such things as objects will cause an error to be generated by JavaScript itself. I believe this is about as good as it gets. The only improvement left is for W3C to just include a toHex() and fromHex() function in JavaScript.
You should read the documentation about DesiredCapabilities. There is also a different page for the ChromeDriver. Javadoc from Capabilities
:
Capabilities: Describes a series of key/value pairs that encapsulate aspects of a browser.
Basically, the DesiredCapabilities
help to set properties for the WebDriver. A typical usecase would be to set the path for the FirefoxDriver
if your local installation doesn't correspond to the default settings.
You can also use the following command:
echo toto; history -d $(history | sed -n '$s/\s*\([0-9]*\)\s*.*$/\1/p')
I think it's a very portable command.
To answer your question I look at it this way practically: a lot of programmers (not all) invoke namespace std. Therefore one should be in the habit of NOT using things that impinge or use the same names as what is in the namespace std. That is a great deal granted, but not so much compared to the number of possible coherent words and pseudonyms that can be come up with strictly speaking.
I mean really... saying "don't rely on this being present" is just setting you up to rely on it NOT being present. You are constantly going to have issues borrowing code snippets and constantly repairing them. Just keep your user-defined and borrowed stuff in limited scope as they should be and be VERY sparing with globals (honestly globals should almost always be a last resort for purposes of "compile now, sanity later"). Truly I think it is bad advice from your teacher because using std will work for both "cout" and "std::cout" but NOT using std will only work for "std::cout". You will not always be fortunate enough to write all your own code.
NOTE: Don't focus too much on efficiency issues until you actually learn a little about how compilers work. With a little experience coding you don't have to learn that much about them before you realize how much they are able to generalize good code into something something simple. Every bit as simple as if you wrote the whole thing in C. Good code is only as complex as it needs to be.
Try to invoke your code from the dispatcher:
Application.Current.Dispatcher.Invoke((Action)delegate{
// your code
});
Provide a User-Agent
header:
import requests
url = 'http://www.ichangtou.com/#company:data_000008.html'
headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36'}
response = requests.get(url, headers=headers)
print(response.content)
FYI, here is a list of User-Agent strings for different browsers:
As a side note, there is a pretty useful third-party package called fake-useragent that provides a nice abstraction layer over user agents:
fake-useragent
Up to date simple useragent faker with real world database
Demo:
>>> from fake_useragent import UserAgent
>>> ua = UserAgent()
>>> ua.chrome
u'Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1667.0 Safari/537.36'
>>> ua.random
u'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.67 Safari/537.36'
For those coming into 2017, this is the new solution with IndexRedirect
:
<Route path="/" component={App}>
<IndexRedirect to="/welcome" />
<Route path="welcome" component={Welcome} />
<Route path="about" component={About} />
</Route>
From the Maven docs, sounds like it's just a difference in which repository you install the package into:
Maybe there is some confusion in that "install" to the CI server installs it to it's local repository, which then you as a user are sharing?
You can use the following to make type="number"
accept positive numbers only:
input type="number" step="1" pattern="\d+"
Full option searchable select box
This also supports Control buttons keyboards such as ArrowDown
ArrowUp
and Enter
keys
function filterFunction(that, event) {_x000D_
let container, input, filter, li, input_val;_x000D_
container = $(that).closest(".searchable");_x000D_
input_val = container.find("input").val().toUpperCase();_x000D_
_x000D_
if (["ArrowDown", "ArrowUp", "Enter"].indexOf(event.key) != -1) {_x000D_
keyControl(event, container)_x000D_
} else {_x000D_
li = container.find("ul li");_x000D_
li.each(function (i, obj) {_x000D_
if ($(this).text().toUpperCase().indexOf(input_val) > -1) {_x000D_
$(this).show();_x000D_
} else {_x000D_
$(this).hide();_x000D_
}_x000D_
});_x000D_
_x000D_
container.find("ul li").removeClass("selected");_x000D_
setTimeout(function () {_x000D_
container.find("ul li:visible").first().addClass("selected");_x000D_
}, 100)_x000D_
}_x000D_
}_x000D_
_x000D_
function keyControl(e, container) {_x000D_
if (e.key == "ArrowDown") {_x000D_
_x000D_
if (container.find("ul li").hasClass("selected")) {_x000D_
if (container.find("ul li:visible").index(container.find("ul li.selected")) + 1 < container.find("ul li:visible").length) {_x000D_
container.find("ul li.selected").removeClass("selected").nextAll().not('[style*="display: none"]').first().addClass("selected");_x000D_
}_x000D_
_x000D_
} else {_x000D_
container.find("ul li:first-child").addClass("selected");_x000D_
}_x000D_
_x000D_
} else if (e.key == "ArrowUp") {_x000D_
_x000D_
if (container.find("ul li:visible").index(container.find("ul li.selected")) > 0) {_x000D_
container.find("ul li.selected").removeClass("selected").prevAll().not('[style*="display: none"]').first().addClass("selected");_x000D_
}_x000D_
} else if (e.key == "Enter") {_x000D_
container.find("input").val(container.find("ul li.selected").text()).blur();_x000D_
onSelect(container.find("ul li.selected").text())_x000D_
}_x000D_
_x000D_
container.find("ul li.selected")[0].scrollIntoView({_x000D_
behavior: "smooth",_x000D_
});_x000D_
}_x000D_
_x000D_
function onSelect(val) {_x000D_
alert(val)_x000D_
}_x000D_
_x000D_
$(".searchable input").focus(function () {_x000D_
$(this).closest(".searchable").find("ul").show();_x000D_
$(this).closest(".searchable").find("ul li").show();_x000D_
});_x000D_
$(".searchable input").blur(function () {_x000D_
let that = this;_x000D_
setTimeout(function () {_x000D_
$(that).closest(".searchable").find("ul").hide();_x000D_
}, 300);_x000D_
});_x000D_
_x000D_
$(document).on('click', '.searchable ul li', function () {_x000D_
$(this).closest(".searchable").find("input").val($(this).text()).blur();_x000D_
onSelect($(this).text())_x000D_
});_x000D_
_x000D_
$(".searchable ul li").hover(function () {_x000D_
$(this).closest(".searchable").find("ul li.selected").removeClass("selected");_x000D_
$(this).addClass("selected");_x000D_
});
_x000D_
div.searchable {_x000D_
width: 300px;_x000D_
float: left;_x000D_
margin: 0 15px;_x000D_
}_x000D_
_x000D_
.searchable input {_x000D_
width: 100%;_x000D_
height: 50px;_x000D_
font-size: 18px;_x000D_
padding: 10px;_x000D_
-webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */_x000D_
-moz-box-sizing: border-box; /* Firefox, other Gecko */_x000D_
box-sizing: border-box; /* Opera/IE 8+ */_x000D_
display: block;_x000D_
font-weight: 400;_x000D_
line-height: 1.6;_x000D_
color: #495057;_x000D_
background-color: #fff;_x000D_
background-clip: padding-box;_x000D_
border: 1px solid #ced4da;_x000D_
border-radius: .25rem;_x000D_
transition: border-color .15s ease-in-out, box-shadow .15s ease-in-out;_x000D_
background: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3E%3Cpath fill='%23343a40' d='M2 0L0 2h4zm0 5L0 3h4z'/%3E%3C/svg%3E") no-repeat right .75rem center/8px 10px;_x000D_
}_x000D_
_x000D_
.searchable ul {_x000D_
display: none;_x000D_
list-style-type: none;_x000D_
background-color: #fff;_x000D_
border-radius: 0 0 5px 5px;_x000D_
border: 1px solid #add8e6;_x000D_
border-top: none;_x000D_
max-height: 180px;_x000D_
margin: 0;_x000D_
overflow-y: scroll;_x000D_
overflow-x: hidden;_x000D_
padding: 0;_x000D_
}_x000D_
_x000D_
.searchable ul li {_x000D_
padding: 7px 9px;_x000D_
border-bottom: 1px solid #e1e1e1;_x000D_
cursor: pointer;_x000D_
color: #6e6e6e;_x000D_
}_x000D_
_x000D_
.searchable ul li.selected {_x000D_
background-color: #e8e8e8;_x000D_
color: #333;_x000D_
}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<div class="searchable">_x000D_
<input type="text" placeholder="search countries" onkeyup="filterFunction(this,event)">_x000D_
<ul>_x000D_
<li>Algeria</li>_x000D_
<li>Bulgaria</li>_x000D_
<li>Canada</li>_x000D_
<li>Egypt</li>_x000D_
<li>Fiji</li>_x000D_
<li>India</li>_x000D_
<li>Japan</li>_x000D_
<li>Iran (Islamic Republic of)</li>_x000D_
<li>Lao People's Democratic Republic</li>_x000D_
<li>Micronesia (Federated States of)</li>_x000D_
<li>Nicaragua</li>_x000D_
<li>Senegal</li>_x000D_
<li>Tajikistan</li>_x000D_
<li>Yemen</li>_x000D_
</ul>_x000D_
</div>
_x000D_
All u need is just use one of the attribute of CSS , which is---->
cursor:pointer
just use this property in css , no matter its inline or internal or external
for example(for inline css)
<form>
<input type="submit" style= "cursor:pointer" value="Button" name="Button">
</form>
The parseInt function has a "radix" parameter which defines the numeral system used on the conversion, so calling parseInt(jQuery('#something').css('margin-left'), 10);
returns the left margin as an Integer.
This is what JSizes use.
It might be the standard error. You can redirect it:
... > out.txt 2>&1
You can retrieve all of the Map
's keys using the method keySet()
. Now, if what you need is to get a key given its value, that's an entirely different matter and Map
won't help you there; you'd need a specialized data structure, like BidiMap
(a map that allows bidirectional lookup between key and values) from Apache's Commons Collections - also be aware that several different keys could be mapped to the same value.
You can access IE8 script console by launching the "Developer Tools" (F12). Click the "Script" tab, then click "Console" on the right.
From within your JavaScript code, you can do any of the following:
<script type="text/javascript">
console.log('some msg');
console.info('information');
console.warn('some warning');
console.error('some error');
console.assert(false, 'YOU FAIL');
</script>
Also, you can clear the Console by calling console.clear()
.
NOTE: It appears you must launch the Developer Tools first then refresh your page for this to work.
Here's something that will do what you'd want when using a string array for the ChildPath.
$path = "C:"
@( "Program Files", "Microsoft Office" ) | %{ $path = Join-Path $path $_ }
Write-Host $path
Which outputs
C:\Program Files\Microsoft Office
The only caveat I found is that the initial value for $path must have a value (cannot be null or empty).
Use the createFromFormat
method:
$start_date = DateTime::createFromFormat("U", $dbResult->db_timestamp);
UPDATE
I now recommend the use of Carbon
You can try with:
df = pd.read_csv('./file_name.csv', encoding='gbk')
When dealing with a hash {}
, use both the key and value to the block inside the ||
.
details.map {|key,item|"" == item}
=>[false, false, true, false, false]
Use the xattr
command. You can inspect the extended attributes:
$ xattr s.7z
com.apple.metadata:kMDItemWhereFroms
com.apple.quarantine
and use the -d
option to delete one extended attribute:
$ xattr -d com.apple.quarantine s.7z
$ xattr s.7z
com.apple.metadata:kMDItemWhereFroms
you can also use the -c
option to remove all extended attributes:
$ xattr -c s.7z
$ xattr s.7z
xattr -h
will show you the command line options, and xattr has a man page.
First in your terminal:
rails g migration change_date_format_in_my_table
Then in your migration file:
For Rails >= 3.2:
class ChangeDateFormatInMyTable < ActiveRecord::Migration
def up
change_column :my_table, :my_column, :datetime
end
def down
change_column :my_table, :my_column, :date
end
end
It's a reserved keyword (like return, filter, function, break).
Also, as per Section 7.6.4 of Bruce Payette's Powershell in Action:
But what happens when you want a script to exit from within a function defined in that script? ... To make this easier, Powershell has the exit keyword.
Of course, as other have pointed out, it's not hard to do what you want by wrapping exit in a function:
PS C:\> function ex{exit}
PS C:\> new-alias ^D ex
You don't need jQuery for this. You can use JavaScript's .childNodes.length
.
Just make sure to subtract 1 if you don't want to include the default text node (which is empty by default). Thus, you'd use the following:
var count = elem.childNodes.length - 1;
A simple possible syntax will be:
<div className={`wrapper searchDiv ${this.state.something}`}>
Activity has six states
Activity lifecycle has seven methods
onCreate()
onStart()
onResume()
onPause()
onStop()
onRestart()
onDestroy()
Situations
When open the app
onCreate() --> onStart() --> onResume()
When back button pressed and exit the app
onPaused() -- > onStop() --> onDestory()
When home button pressed
onPaused() --> onStop()
After pressed home button when again open app from recent task list or clicked on icon
onRestart() --> onStart() --> onResume()
When open app another app from notification bar or open settings
onPaused() --> onStop()
Back button pressed from another app or settings then used can see our app
onRestart() --> onStart() --> onResume()
When any dialog open on screen
onPause()
After dismiss the dialog or back button from dialog
onResume()
Any phone is ringing and user in the app
onPause() --> onResume()
When user pressed phone's answer button
onPause()
After call end
onResume()
When phone screen off
onPaused() --> onStop()
When screen is turned back on
onRestart() --> onStart() --> onResume()
sorry for the sudo code..I'm on a phone. ;)
between = (time < string2 && time > string1);
if (string1 > string2) between = !between;
if they are timestamps or strings this works. just change the variable names to match
I was facing an issue with PJSIP libraries,
Tried the following in other linker flags in project and able to resolve the error: -framework Foundation -framework UIKit
Above linker flags are used in Siphone Project over github. These settings will help you resolve problems related to linking of C++ libraries.
sounds like you're looking for setInterval. It's as easy as this:
function FetchData() {
// do something
}
setInterval(FetchData, 60000);
if you only want to call something once, theres setTimeout.
I'm using the /Console
parameter in the Visual Studio project Debug ? Start Options ? Command line arguments:
public static class Program
{
[STAThread]
public static void Main(string[] args)
{
var runMode = args.Contains(@"/Console")
? WindowsService.RunMode.Console
: WindowsService.RunMode.WindowsService;
new WinodwsService().Run(runMode);
}
}
public class WindowsService : ServiceBase
{
public enum RunMode
{
Console,
WindowsService
}
public void Run(RunMode runMode)
{
if (runMode.Equals(RunMode.Console))
{
this.StartService();
Console.WriteLine("Press <ENTER> to stop service...");
Console.ReadLine();
this.StopService();
Console.WriteLine("Press <ENTER> to exit.");
Console.ReadLine();
}
else if (runMode.Equals(RunMode.WindowsService))
{
ServiceBase.Run(new[] { this });
}
}
protected override void OnStart(string[] args)
{
StartService(args);
}
protected override void OnStop()
{
StopService();
}
/// <summary>
/// Logic to Start Service
/// Public accessibility for running as a console application in Visual Studio debugging experience
/// </summary>
public virtual void StartService(params string[] args){ ... }
/// <summary>
/// Logic to Stop Service
/// Public accessibility for running as a console application in Visual Studio debugging experience
/// </summary>
public virtual void StopService() {....}
}
This is helpfull, its work for me..
$('.bd-example-modal-sm').on('hidden.bs.modal', function () {
$(this).find("select").val('').end(); // Clear dropdown content
$("ul").empty(); // Clear li content
});
Follow the below
ng-click="anyFunction()"
anyFunction() {
// call another function here
anotherFunction();
}
You will find complete list of time zone with its GMToffsets
here and you can use "Name of Time Zone" column value to find time zone by ID
e.g
TimeZoneInfo objTimeZoneInfo = TimeZoneInfo.FindTimeZoneById("Dateline Standard Time");
You will get time zone info class that contains dateline standard time time zone which is used for GMT-12:00.
No. That is not possible. You should use an array instead:
name[i] = i;
In this case, your name+i
is name[i]
.
There are two options for cross thread operations.
Control.InvokeRequired Property
and second one is to use
SynchronizationContext Post Method
Control.InvokeRequired is only useful when working controls inherited from Control class while SynchronizationContext can be used anywhere. Some useful information is as following links
Another common use-case is manipulating/testing file permissions. See the Python stat module: http://docs.python.org/library/stat.html.
For example, to compare a file's permissions to a desired permission set, you could do something like:
import os
import stat
#Get the actual mode of a file
mode = os.stat('file.txt').st_mode
#File should be a regular file, readable and writable by its owner
#Each permission value has a single 'on' bit. Use bitwise or to combine
#them.
desired_mode = stat.S_IFREG|stat.S_IRUSR|stat.S_IWUSR
#check for exact match:
mode == desired_mode
#check for at least one bit matching:
bool(mode & desired_mode)
#check for at least one bit 'on' in one, and not in the other:
bool(mode ^ desired_mode)
#check that all bits from desired_mode are set in mode, but I don't care about
# other bits.
not bool((mode^desired_mode)&desired_mode)
I cast the results as booleans, because I only care about the truth or falsehood, but it would be a worthwhile exercise to print out the bin() values for each one.
This is a nice 5-part tutorial that covers a lot of useful material: http://mobile.tutsplus.com/tutorials/phonegap/phonegap-from-scratch/
(Anyone else noticing a trend forming here??? hehehee )
And this will definitely be of use to all developers:
http://blip.tv/mobiletuts/weinre-demonstration-5922038
=)
Todd
Edit I just finished a nice four part tutorial building an app to write, save, edit, & delete notes using jQuery mobile (only), it was very practical & useful, but it was also only for jQM. So, I looked to see what else they had on DZone.
I'm now going to start sorting through these search results. At a glance, it looks really promising. I remembered this post; so I thought I'd steer people to it. ?
Of all the options above I would use
if (mysql_num_rows($result)==0) { PERFORM ACTION }
checking against the result like below
if (!$result) { PERFORM ACTION }
This will be true if a mysql_error occurs so effectively if an error occurred you could then enter a duplicate user-name...
All versions of .Net:
if (String.IsNullOrEmpty(strSearch) || strSearch.Trim().Length == 0)
.Net 4.0 or later:
if (String.IsNullOrWhitespace(strSearch))
Try this simple permission library. It will handle all operations related to permission in 3 easy steps. It saved my time. You can finish all permission related work in 15 mins.
It can handle Deny, It can handle Never ask again, It can call app settings for permission, It can give a Rational message, It can give a Denial message, It can give a list of accepted permissions, It can give a list of denied permissions and etc.
https://github.com/ParkSangGwon/TedPermission
Step 1: add your dependency
dependencies {
compile 'gun0912.ted:tedpermission:2.1.1'
//check the above link for latest libraries
}
Step2: Ask permissions
TedPermission.with(this)
.setPermissionListener(permissionlistener)
.setDeniedMessage("If you reject permission,you can not use this service\n\nPlease turn on permissions at [Setting] > [Permission]")
.setPermissions(Manifest.permission.READ_CONTACTS, Manifest.permission.ACCESS_FINE_LOCATION)
.check();
Step 3: Handle permission response
PermissionListener permissionlistener = new PermissionListener() {
@Override
public void onPermissionGranted() {
Toast.makeText(MainActivity.this, "Permission Granted", Toast.LENGTH_SHORT).show();
}
@Override
public void onPermissionDenied(ArrayList<String> deniedPermissions) {
Toast.makeText(MainActivity.this, "Permission Denied\n" + deniedPermissions.toString(), Toast.LENGTH_SHORT).show();
}
};
that's so simple
var element = querySelector("div")
var nextelement = element.ParentElement.querySelector("div+div")
Here is the browser supports https://caniuse.com/queryselector
In my case this error came up when the Sub name was identical to the Module name.
Temporary workaround: unicode(urllib2.urlopen(url).read(), 'utf8')
- this should work if what is returned is UTF-8.
urlopen().read()
return bytes and you have to decode them to unicode strings. Also it would be helpful to check the patch from http://bugs.python.org/issue4733