Check out Loom (http://theengine.co) is a new cross platform 2D game engine featuring hot swapping code & assets on devices. This means that you can work in Photoshop on your assets, you can update your code, modify the UI of your app/game and then see the changes on your device(s) while the app is running.

Thinking to the other cross platform game engines I’ve heard of or even played with, the Loom Game Engine is by far the best in my oppinion with lots of great features. Most of the other similar game engines (Corona SDK, MOAI SDK, Gideros Mobile) are Lua based (with an odd syntax, at least for me). The Loom Game Engine uses LoomScripts, a scripting language inspired from ActionScript 3, with a couple of features borrowed from C#. If you ever developed in ActionScript 3, C# or Java, LoomScript will look familiar to you (and I’m more comfortable with this syntax than with Lua’s syntax).

The 1 year license for the Loom Game Engine costs $500, and I think it’s an affordable price for any indie game developer. Couple of weeks ago the offered a 1 year license for free too. After the license expires, you can still use Loom to create and deploy your own games, but you won’t get any further updates. The creators of Loom are very confident and they promised to constantly improve their baby making it worthwile to purchase another license.

Without further ado, here are Loom’s great features:

1. Cross platform (iOS, Android, OS X, Windows, Linux/Ubuntu)

2. Rails-inspired workflow lets you spend your time working with your game (one command to create a new project, and another command to run it)

3. Fast compiler

4. Live code and assets editing

5. Possibility to integrate third party libraries

6. Uses Cocos2DX for rendering

7. XML, JSON support

8. LML (markup language) and CSS for styling UI elements

9. UI library

10. Dependency injection

11. Unit test framework

12. Chipmunk physics

13. Seeing your changes live makes multidevice development easy

14. Small download size

15. Built for teams

You can find more videos about Loom here: http://www.youtube.com/user/LoomEngine?feature=watch

Check out this 4 part in-depth tutorial too: http://www.gamefromscratch.com/post/2013/02/28/A-closer-look-at-the-Loom-game-engine-Part-one-getting-started.aspx

This will handle negative numbers, fractions, string, everything:

ORDER BY ISNUMERIC(col) DESC, Try_Parse(col AS decimal(10,2)), col;

Use this code for IE9 and above:

window.frames["printf"].focus();
window.frames["printf"].print();

For IE8:

window.frames[0].focus();
window.frames[0].print();

Details

xCode 9.1, Swift 4

Math oriented solution (1)

import Foundation

class Random {

    subscript<T>(_ min: T, _ max: T) -> T where T : BinaryInteger {
        get {
            return rand(min-1, max+1)
        }
    }
}

let rand = Random()

func rand<T>(_ min: T, _ max: T) -> T where T : BinaryInteger {
    let _min = min + 1
    let difference = max - _min
    return T(arc4random_uniform(UInt32(difference))) + _min
}

Usage of solution (1)

let x = rand(-5, 5)       // x = [-4, -3, -2, -1, 0, 1, 2, 3, 4]
let x = rand[0, 10]       // x = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

Programmers oriented solution (2)

Do not forget to add Math oriented solution (1) code here

import Foundation

extension CountableRange where Bound : BinaryInteger {

    var random: Bound {
        return rand(lowerBound-1, upperBound)
    }
}

extension CountableClosedRange where Bound : BinaryInteger {

    var random: Bound {
        return rand[lowerBound, upperBound]
    }
}

Usage of solution (2)

let x = (-8..<2).random           // x = [-8, -7, -6, -5, -4, -3, -2, -1, 0, 1]
let x = (0..<10).random           // x = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
let x = (-10 ... -2).random       // x = [-10, -9, -8, -7, -6, -5, -4, -3, -2]

Full Sample

Do not forget to add solution (1) and solution (2) codes here

private func generateRandNums(closure:()->(Int)) {

    var allNums = Set<Int>()
    for _ in 0..<100 {
        allNums.insert(closure())
    }
    print(allNums.sorted{ $0 < $1 })
}

generateRandNums {
    (-8..<2).random
}

generateRandNums {
    (0..<10).random
}

generateRandNums {
    (-10 ... -2).random
}

generateRandNums {
    rand(-5, 5)
}
generateRandNums {
    rand[0, 10]
}

Sample result

• The port number in the Eclipse configuration and the port number of your application might not be the same.

• You might not have been started your application with the right parameters.

  Those are the simple problems when I have faced "Connection refused" error.

Just append them to the options:

redirect_to controller: 'thing', action: 'edit', id: 3, something: 'else'

Would yield /thing/3/edit?something=else

They are:

• print only takes one parameter, while echo can have multiple parameters.
• print returns a value (1), so can be used as an expression.
• echo is slightly faster.

You can do it this way in python3:

print(a,b,end=" ")

Redux itself is a pretty verbose library, and for such stuff you would have to use something like Redux-thunk, which will give a dispatch function, so you will be able to dispatch closing of the notification after several seconds.

I have created a library to address issues like verbosity and composability, and your example will look like the following:

import { createTile, createSyncTile } from 'redux-tiles';
import { sleep } from 'delounce';

const notifications = createSyncTile({
  type: ['ui', 'notifications'],
  fn: ({ params }) => params.data,
  // to have only one tile for all notifications
  nesting: ({ type }) => [type],
});

const notificationsManager = createTile({
  type: ['ui', 'notificationManager'],
  fn: ({ params, dispatch, actions }) => {
    dispatch(actions.ui.notifications({ type: params.type, data: params.data }));
    await sleep(params.timeout || 5000);
    dispatch(actions.ui.notifications({ type: params.type, data: null }));
    return { closed: true };
  },
  nesting: ({ type }) => [type],
});

So we compose sync actions for showing notifications inside async action, which can request some info the background, or check later whether the notification was closed manually.

For complete M B answer, if you want to access to an specific attribute of this object already filtered from the array in your HTML, you will have to do it in this way:

{{ (myArray | filter : {'id':73})[0].name }}

So, in this case, it will print john in the HTML.

Regards!

Coming from JavaScript, this was something I was used to having "built-in" via Array.prototype.splice(), so I made a Python function that does the same:

def list_splice(target, start, delete_count=None, *items):
    """Remove existing elements and/or add new elements to a list.

    target        the target list (will be changed)
    start         index of starting position
    delete_count  number of items to remove (default: len(target) - start)
    *items        items to insert at start index

    Returns a new list of removed items (or an empty list)
    """
    if delete_count == None:
        delete_count = len(target) - start

    # store removed range in a separate list and replace with *items
    total = start + delete_count
    removed = target[start:total]
    target[start:total] = items

    return removed

Right click on Apache Tomcat under Services window. Stop the server, then start it again...both log and output window will reappear

I have multiple jars in a folder. The below command worked for me in JDK1.8 to include all jars present in the folder. Please note that to include in quotes if you have a space in the classpath

Windows

Compiling: javac -classpath "C:\My Jars\sdk\lib\*" c:\programs\MyProgram.java

Running: java -classpath "C:\My Jars\sdk\lib\*;c:\programs" MyProgram

Linux

Compiling: javac -classpath "/home/guestuser/My Jars/sdk/lib/*" MyProgram.java

Running: java -classpath "/home/guestuser/My Jars/sdk/lib/*:/home/guestuser/programs" MyProgram

I can confirm that mp4 just will not work in the video tag. No matter how much you try to mess with the type tag and the codec and the mime types from the server.

Crazy, because for the same exact video, on the same test page, the old embed tag for an mp4 works just fine in firefox. I spent all yesterday messing with this. Firefox is like IE all of a sudden, hours and hours of time, not billable. Yay.

Speaking of IE, it fails FAR MORE gracefully on this. When it can't match up the format it falls to the content between the tags, so it is possible to just put video around object around embed and everything works great. Firefox, nope, despite failing, it puts up the poster image (greyed out so that isn't even useful as a fallback) with an error message smack in the middle. So now the options are put in browser recognition code (meaning we've gained nothing on embedding videos in the last ten years) or ditch html5.

Append .done() to your ajax request.

$.ajax({
  url: "test.html",
  context: document.body
}).done(function() { //use this
  alert("DONE!");
});

See the JQuery Doc for .done()

Use:

File.Exists(path)

MSDN: http://msdn.microsoft.com/en-us/library/system.io.file.exists.aspx

Edit: In System.IO

This approach seems more straightforward, avoiding the need to individually select each file:

# keep remote files
git merge --strategy-option theirs
# keep local files
git merge --strategy-option ours

or

# keep remote files
git pull -Xtheirs
# keep local files
git pull -Xours

Copied directly from: Resolve Git merge conflicts in favor of their changes during a pull

As already mentioned, Chrome Extensions don't allow to have inline JavaScript due to security reasons so you can try this workaround as well.

HTML file

<!doctype html>
    <html>
        <head>
            <title>
                Getting Started Extension's Popup
            </title>
            <script src="popup.js"></script>
        </head>
        <body>
            <div id="text-holder">ha</div><br />
            <a class="clickableBtn">
                  hyhy
            </a>
        </body>
    </html>
<!doctype html>

popup.js

window.onclick = function(event) {
    var target = event.target ;
    if(target.matches('.clickableBtn')) {
        var clickedEle = document.activeElement.id ;
        var ele = document.getElementById(clickedEle);
        alert(ele.text);
    }
}

Or if you are having a Jquery file included then

window.onclick = function(event) {
    var target = event.target ;
    if(target.matches('.clickableBtn')) {
        alert($(target).text());
    }
}

In development
In your app folder create folder name 'static' and save your picture in that folder.
To use picture use:

<html>
    <head>
       {% load staticfiles %} <!-- Prepare django to load static files -->
    </head>
    <body>
        <img src={% static "image.jpg" %}>
    </body>
</html>

In production:
Everything same like in development, just add couple more parameters for Django:

1. add in settings.py
   STATIC_ROOT = os.path.join(BASE_DIR, "static/")(this will prepare folder where static files from all apps will be stored)

2. be sure your app is in INSTALLED_APPS = ['myapp',]

3. in terminall run command python manage.py collectstatic (this will make copy of static files from all apps included in INSTALLED_APPS to global static folder - STATIC_ROOT folder )
   
   Thats all what Django need, after this you need to make some web server side setup to make premissions for use static folder. E.g. in apache2 in configuration file httpd.conf (for windows) or sites-enabled/000-default.conf. (under site virtual host part for linux) add:

   Alias \static "path_to_your_project\static"

   Require all granted
   
   And that's all

You need to get the configuration file from the developer's site and paste it in the app level directory of your project.

Update:

Goto

1. https://console.firebase.google.com/

2. Select your project

3. On the left menu, click on settings > project settings

4. Add an app or download the google-services.json file under the Your Apps section.

If you need to be able to switch between more than two versions at a time, you can use the following to change the version of PHP manually.

MAMP automatically rewrites the following line in your /Applications/MAMP/conf/apache/httpd.conf file when it restarts based on the settings in preferences. You can comment out this line and add the second one to the end of your file:

# Comment this out just under all the modules loaded
# LoadModule php5_module        /Applications/MAMP/bin/php/php5.x.x/modules/libphp5.so

At the bottom of the httpd.conf file, you'll see where additional configurations are loaded from the extra folder. Add this to the bottom of the httpd.conf file

# PHP Version Change
Include /Applications/MAMP/conf/apache/extra/httpd-php.conf

Then create a new file here: /Applications/MAMP/conf/apache/extra/httpd-php.conf

# Uncomment the version of PHP you want to run with MAMP
# LoadModule php5_module /Applications/MAMP/bin/php/php5.2.17/modules/libphp5.so
# LoadModule php5_module /Applications/MAMP/bin/php/php5.3.27/modules/libphp5.so
# LoadModule php5_module /Applications/MAMP/bin/php/php5.4.19/modules/libphp5.so
LoadModule php5_module /Applications/MAMP/bin/php/php5.5.3/modules/libphp5.so

After you have this setup, just uncomment the version of PHP you want to use and restart the servers!

Using the index:

df[1:4,]

Where the values in the parentheses can be interpreted as either logical, numeric, or character (matching the respective names):

df[row.index, column.index]

Read help(`[`) for more detail on this subject, and also read about index matrices in the Introduction to R.

You can do it using remote debugging, here is official documentation. Basic process:

1. Connect your android device
2. Select your device: More tools > Inspect devices* from dev tools on pc/mac.
3. Authorize on your mobile.
4. Happy debugging!!

* This is now "Remote devices".

SQL Server 2012:

right-click on the DB > Properties > Options > [Scroll down] State > RestrictAccess > select Multi_user and click OK.

Voila!

Using Following Code You Solve thisQuestion.... If you run a file using localhost server than this problem solve by following Jsp Page Code.This Code put Between Head Tag in jsp file

<style type="text/css">
    <%@include file="css/style.css" %>
</style>
<script type="text/javascript">
    <%@include file="js/script.js" %>
</script>

I had the Cannot edit in read-only editor error when trying to edit code after stopping the debug mode (for 2-3 minutes after pressing Shift+F5).

Turns out the default Node version (v9.11.1) wasn't exiting gracefully, leaving VScode stuck on read-only.
Simply adding "runtimeVersion": "12.4.0" to my launch.json file fixed it.

alternatively, change your default Node version to the latest stable version (you can see the current version on the DEBUG CONSOLE when starting debug mode).

As in the answer of Escobar Ceaser, I suggest to use quotes arround the whole path. It's the common way to wrap the whole path in "", not only separate directory names within the path.

I had a similar issue that it didn't work for me. But it was no option to use "" within the path for separate directory names because the path contained environment variables, which theirself cover more than one directory hierarchies. The conclusion was that I missed the space between the closing " and the (

The correct version, with the space before the bracket, would be

If NOT exist "C:\Documents and Settings\John\Start Menu\Programs\Software Folder" (
 start "\\filer\repo\lab\software\myapp\setup.exe"
 pause
) 

just for modifying certain property from object collection you could directly use forEach with a collection as follows

collection.forEach(c -> c.setXyz(c.getXyz + "a"))

If you are using Auto Layout then you can do it on the Story board.

Add a height constraint to the text field, then change the height constraint constant to any desired value. Steps are shown below:

Step 1: Create a height constraint for the text field

Step 2: Select Height Constraint

Step 3: Change Height Constraint's constant value

With latest versions of docker, this is enough:

docker run -ti --privileged ubuntu bash

It will give access to all system resources (in /dev for instance)

you can follow this tutorial

http://www.androidbegin.com/tutorial/android-google-cloud-messaging-gcm-tutorial/

it helped me to do a push notification; or you can follow this other tutorial

http://www.tutorialeshtml5.com/2013/10/tutorial-simple-de-gcm-traves-de-php.html

but it's in spanish but you can download the code.

Just wanted to summarize everything:

.unselectable {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

<div class="unselectable" unselectable="yes" onselectstart="return false;"/>

The Symfony project tries to keep its HTTP methods joined up with CRUD methods, and their list associates them as follows:

• GET Retrieve the resource from the server
• POST Create a resource on the server
• PUT Update the resource on the server
• DELETE Delete the resource from the server

It's worth noting that, as they say on that page, "In reality, many modern browsers don't support the PUT and DELETE methods."

From what I remember, Symfony "fakes" PUT and DELETE for those browsers that don't support them when generating its forms, in order to try to be as close to using the theoretically-correct HTTP method even when a browser doesn't support it.

Surprised no one mentioned:

<select id="selectVehicle">
     <option value="1" data-year="2011">Mazda</option>
     <option value="2" data-year="2015">Honda</option>
     <option value="3" data-year="2008">Mercedes</option>
     <option value="4" data-year="2005">Toyota</option>
    </select>

$("#selectVehicle").change(function () {
     alert($(this).find(':selected').data("year"));
});

Here is the working example: https://jsfiddle.net/ed5axgvk/1/

Error-Handling with SQL Stored Procedures

TRY/CATCH error handling can take place either within or outside of a procedure (or both). The examples below demonstrate error handling in both cases.

If you want to experiment further, you can fork the query on Stack Exchange Data Explorer.

_{(This uses a temporary stored procedure... we can't create regular SP's on SEDE, but the functionality is the same.)}

--our Stored Procedure
create procedure #myProc as --we can only create #temporary stored procedures on SEDE. 
  begin
    BEGIN TRY
      print 'This is our Stored Procedure.'
      print 1/0                          --<-- generate a "Divide By Zero" error.
      print 'We are not going to make it to this line.'
    END TRY

    BEGIN CATCH
      print 'This is the CATCH block within our Stored Procedure:'
          + ' Error Line #'+convert(varchar,ERROR_LINE())
          + ' of procedure '+isnull(ERROR_PROCEDURE(),'(Main)')
      --print 1/0                        --<-- generate another "Divide By Zero" error.
        -- uncomment the line above to cause error within the CATCH ¹ 
    END CATCH
  end
go

--our MAIN code block:
BEGIN TRY
  print 'This is our MAIN Procedure.'
  execute #myProc  --execute the Stored Procedure
      --print 1/0                        --<-- generate another "Divide By Zero" error.
        -- uncomment the line above to cause error within the MAIN Procedure ²
  print 'Now our MAIN sql code block continues.'
END TRY

BEGIN CATCH
  print 'This is the CATCH block for our MAIN sql code block:'
          + ' Error Line #'+convert(varchar,ERROR_LINE())
          + ' of procedure '+isnull(ERROR_PROCEDURE(),'(Main)')
END CATCH

Here's the result of running the above sql as-is:

This is our MAIN Procedure.
This is our Stored Procedure.
This is the CATCH block within our Stored Procedure: Error Line #5 of procedure #myProc
Now our MAIN sql code block continues.

¹ Uncommenting the "additional error line" from the Stored Procedure's CATCH block will produce:

This is our MAIN procedure.
This is our Stored Procedure.
This is the CATCH block within our Stored Procedure: Error Line #5 of procedure #myProc
This is the CATCH block for our MAIN sql code block: Error Line #13 of procedure #myProc

² Uncommenting the "additional error line" from the MAIN procedure will produce:

This is our MAIN Procedure.
This is our Stored Pprocedure.
This is the CATCH block within our Stored Procedure: Error Line #5 of procedure #myProc
This is the CATCH block for our MAIN sql code block: Error Line #4 of procedure (Main)

Use a single procedure for error handling

On topic of stored procedures and error handling, it can be helpful (and tidier) to use a single, dynamic, stored procedure to handle errors for multiple other procedures or code sections.

Here's an example:

--our error handling procedure
create procedure #myErrorHandling as
  begin
    print ' Error #'+convert(varchar,ERROR_NUMBER())+': '+ERROR_MESSAGE()  
    print ' occurred on line #'+convert(varchar,ERROR_LINE())
         +' of procedure '+isnull(ERROR_PROCEDURE(),'(Main)')
    if ERROR_PROCEDURE() is null       --check if error was in MAIN Procedure
      print '*Execution cannot continue after an error in the MAIN Procedure.'
  end
go

create procedure #myProc as     --our test Stored Procedure
  begin
    BEGIN TRY
      print 'This is our Stored Procedure.'
      print 1/0                       --generate a "Divide By Zero" error.
      print 'We will not make it to this line.'
    END TRY
    BEGIN CATCH
     execute #myErrorHandling
    END CATCH
  end
go

BEGIN TRY                       --our MAIN Procedure
  print 'This is our MAIN Procedure.'
  execute #myProc                     --execute the Stored Procedure
  print '*The error halted the procedure, but our MAIN code can continue.'
  print 1/0                           --generate another "Divide By Zero" error.
  print 'We will not make it to this line.'
END TRY
BEGIN CATCH
  execute #myErrorHandling
END CATCH

Example Output: _{^{(This query can be forked on SEDE here.)}}

This is our MAIN procedure.
This is our stored procedure.
 Error #8134: Divide by zero error encountered.
 occurred on line #5 of procedure #myProc
*The error halted the procedure, but our MAIN code can continue.
 Error #8134: Divide by zero error encountered.
 occurred on line #5 of procedure (Main)
*Execution cannot continue after an error in the MAIN procedure.

Documentation:

In the scope of a TRY/CATCH block, the following system functions can be used to obtain information about the error that caused the CATCH block to be executed:

• ERROR_NUMBER() returns the number of the error.
• ERROR_SEVERITY() returns the severity.
• ERROR_STATE() returns the error state number.
• ERROR_PROCEDURE() returns the name of the stored procedure or trigger where the error occurred.
• ERROR_LINE() returns the line number inside the routine that caused the error.
• ERROR_MESSAGE() returns the complete text of the error message. The text includes the values supplied for any substitutable parameters, such as lengths, object names, or times.

^(Source)

Note that there are two types of SQL errors: Terminal and Catchable. TRY/CATCH will [obviously] only catch the "Catchable" errors. This is one of a number of ways of learning more about your SQL errors, but it probably the most useful.

It's "better to fail now" (during development) compared to later because, as Homer says . . .

You may need to add a JDK (Java Development Kit) to the installed JRE's within Eclipse

Go to Window->Preferences->Java->Installed JRE's

In the Name column if you do not have a JDK as your default, then you will need to add it.

Click the "Add" Button and locate the JDK on your machine. You may find it in this location: C:\Program Files\Java\jdk1.x.y
Where x and y are numbers.

If there are no JDK's installed on your machine then download and install the Java SE (Standard Edition) from the Oracle website.

Then do the steps above again. Be sure that it is set as the default JRE to use.

Then go back to the Projects->Generate Javadoc... dialog

Now it should work.

Good Luck.

You could use something like this:

import re
s = #that big string
# the parenthesis create a group with what was matched
# and '\w' matches only alphanumeric charactes
p = re.compile("name +(\w+) +is valid", re.flags)
# use search(), so the match doesn't have to happen 
# at the beginning of "big string"
m = p.search(s)
# search() returns a Match object with information about what was matched
if m:
    name = m.group(1)
else:
    raise Exception('name not found')

Setting this attribute to ObjectMapper instance works,

objectMapper.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY);

As noted by other answers, the general solution is to use an index expression in an assignment of the special form:

v, ok = a[x]
v, ok := a[x]
var v, ok = a[x]
var v, ok T = a[x]

This is nice and clean. It has some restrictions though: it must be an assignment of special form. Right-hand side expression must be the map index expression only, and the left-hand expression list must contain exactly 2 operands, first to which the value type is assignable, and a second to which a bool value is assignable. The first value of the result of this special form will be the value associated with the key, and the second value will tell if there is actually an entry in the map with the given key (if the key exists in the map). The left-hand side expression list may also contain the blank identifier if one of the results is not needed.

It's important to know that if the indexed map value is nil or does not contain the key, the index expression evaluates to the zero value of the value type of the map. So for example:

m := map[int]string{}
s := m[1] // s will be the empty string ""
var m2 map[int]float64 // m2 is nil!
f := m2[2] // f will be 0.0

fmt.Printf("%q %f", s, f) // Prints: "" 0.000000

Try it on the Go Playground.

So if we know that we don't use the zero value in our map, we can take advantage of this.

For example if the value type is string, and we know we never store entries in the map where the value is the empty string (zero value for the string type), we can also test if the key is in the map by comparing the non-special form of the (result of the) index expression to the zero value:

m := map[int]string{
    0: "zero",
    1: "one",
}

fmt.Printf("Key 0 exists: %t\nKey 1 exists: %t\nKey 2 exists: %t",
    m[0] != "", m[1] != "", m[2] != "")

Output (try it on the Go Playground):

Key 0 exists: true
Key 1 exists: true
Key 2 exists: false

In practice there are many cases where we don't store the zero-value value in the map, so this can be used quite often. For example interfaces and function types have a zero value nil, which we often don't store in maps. So testing if a key is in the map can be achieved by comparing it to nil.

Using this "technique" has another advantage too: you can check existence of multiple keys in a compact way (you can't do that with the special "comma ok" form). More about this: Check if key exists in multiple maps in one condition

Getting the zero value of the value type when indexing with a non-existing key also allows us to use maps with bool values conveniently as sets. For example:

set := map[string]bool{
    "one": true,
    "two": true,
}

fmt.Println("Contains 'one':", set["one"])

if set["two"] {
    fmt.Println("'two' is in the set")
}
if !set["three"] {
    fmt.Println("'three' is not in the set")
}

It outputs (try it on the Go Playground):

Contains 'one': true
'two' is in the set
'three' is not in the set

See related: How can I create an array that contains unique strings?

To fix this problem, you must edit your php.ini (or extensions.ini) file and comment-out the extensions that are already compiled-in. For example, after editing, your ini file may look like the lines below:

;extension=pcre.so
;extension=spl.so

Source: http://www.somacon.com/p520.php

This simple combination of COALESCE and NULLIF should do the trick:

SELECT             
  Coalesce(NULLIF(listing.OfferText, ''), company.OfferText) As Offer_Text
...

Note: Add another empty string as the last COALESCE argument if you want the statement to return an empty string instead of NULL if both values are NULL.

@IBAction func back(_ sender: Any) {
        self.dismiss(animated: false, completion: nil)
    }

Sample Mat-table column and corresponding CSS:

HTML/Template

<ng-container matColumnDef="">
  <mat-header-cell *matHeaderCellDef>
     Wider Column Header
  </mat-header-cell>
  <mat-cell *matCellDef="let displayData">
    {{ displayData.value}}
  </mat-cell>`enter code here`
</ng-container>

CSS

.mat-column-courtFolderId {
    flex: 0 0 35%;
}

One shortcoming of the accepted solution is that its output is very python specific. I.e. its raw json output cannot be observed by a human or loaded by another language (e.g. javascript). example:

db = {
        "a": [ 44, set((4,5,6)) ],
        "b": [ 55, set((4,3,2)) ]
        }

j = dumps(db, cls=PythonObjectEncoder)
print(j)

Will get you:

{"a": [44, {"_python_object": "gANjYnVpbHRpbnMKc2V0CnEAXXEBKEsESwVLBmWFcQJScQMu"}], "b": [55, {"_python_object": "gANjYnVpbHRpbnMKc2V0CnEAXXEBKEsCSwNLBGWFcQJScQMu"}]}

I can propose a solution which downgrades the set to a dict containing a list on the way out, and back to a set when loaded into python using the same encoder, therefore preserving observability and language agnosticism:

from decimal import Decimal
from base64 import b64encode, b64decode
from json import dumps, loads, JSONEncoder
import pickle

class PythonObjectEncoder(JSONEncoder):
    def default(self, obj):
        if isinstance(obj, (list, dict, str, int, float, bool, type(None))):
            return super().default(obj)
        elif isinstance(obj, set):
            return {"__set__": list(obj)}
        return {'_python_object': b64encode(pickle.dumps(obj)).decode('utf-8')}

def as_python_object(dct):
    if '__set__' in dct:
        return set(dct['__set__'])
    elif '_python_object' in dct:
        return pickle.loads(b64decode(dct['_python_object'].encode('utf-8')))
    return dct

db = {
        "a": [ 44, set((4,5,6)) ],
        "b": [ 55, set((4,3,2)) ]
        }

j = dumps(db, cls=PythonObjectEncoder)
print(j)
ob = loads(j)
print(ob["a"])

Which gets you:

{"a": [44, {"__set__": [4, 5, 6]}], "b": [55, {"__set__": [2, 3, 4]}]}
[44, {'__set__': [4, 5, 6]}]

Note that serializing a dictionary which has an element with a key "__set__" will break this mechanism. So __set__ has now become a reserved dict key. Obviously feel free to use another, more deeply obfuscated key.

No need to do the loop, and using just standard Java library classes:

protected String getStringWithLengthAndFilledWithCharacter(int length, char charToFill) {
  if (length > 0) {
    char[] array = new char[length];
    Arrays.fill(array, charToFill);
    return new String(array);
  }
  return "";
}

As you can see, I also added suitable code for the length == 0 case.

If the string is empty, comboBox.getSelectedItem().toString() will give a NullPointerException. So better to typecast by (String).

From the Java Documentation:

[...] More surprisingly, class Class has been generified. Class literals now function as type tokens, providing both run-time and compile-time type information. This enables a style of static factories exemplified by the getAnnotation method in the new AnnotatedElement interface:

<T extends Annotation> T getAnnotation(Class<T> annotationType); 

This is a generic method. It infers the value of its type parameter T from its argument, and returns an appropriate instance of T, as illustrated by the following snippet:

Author a = Othello.class.getAnnotation(Author.class);

Prior to generics, you would have had to cast the result to Author. Also you would have had no way to make the compiler check that the actual parameter represented a subclass of Annotation. [...]

Well, I never had to use this kind of stuff. Anyone?

FOR NEOVIM

Due to problems with interactive calls (https://github.com/neovim/neovim/issues/1716), I am using this for neovim, based on Dr Beco's answer:

cnoremap w!! execute 'silent! write !SUDO_ASKPASS=`which ssh-askpass` sudo tee % >/dev/null' <bar> edit!

This will open a dialog using ssh-askpass asking for the sudo password.

The byte1 & 0xff ensures that only the 8 least significant bits of byte1 can be non-zero.

if byte1 is already an unsigned type that has only 8 bits (e.g., char in some cases, or unsigned char in most) it won't make any difference/is completely unnecessary.

If byte1 is a type that's signed or has more than 8 bits (e.g., short, int, long), and any of the bits except the 8 least significant is set, then there will be a difference (i.e., it'll zero those upper bits before oring with the other variable, so this operand of the or affects only the 8 least significant bits of the result).

First you have to decode your json :

$array = json_decode($the_json_code);

Then after the json decoded you have to do the foreach

foreach ($array as $key => $jsons) { // This will search in the 2 jsons
     foreach($jsons as $key => $value) {
         echo $value; // This will show jsut the value f each key like "var1" will print 9
                       // And then goes print 16,16,8 ...
    }
}

If you want something specific just ask for a key like this. Put this between the last foreach.

if($key == 'var1'){
 echo $value;
}

Right click on the project, "Properties", "Application" tab, change "Output Type" to "Console Application", and then it will also have a console.

If it's a server socket, you should call listen() on your socket, and then getsockname() to find the port number on which it is listening:

struct sockaddr_in sin;
socklen_t len = sizeof(sin);
if (getsockname(sock, (struct sockaddr *)&sin, &len) == -1)
    perror("getsockname");
else
    printf("port number %d\n", ntohs(sin.sin_port));

As for the IP address, if you use INADDR_ANY then the server socket can accept connections to any of the machine's IP addresses and the server socket itself does not have a specific IP address. For example if your machine has two IP addresses then you might get two incoming connections on this server socket, each with a different local IP address. You can use getsockname() on the socket for a specific connection (which you get from accept()) in order to find out which local IP address is being used on that connection.

Charles

I came across Charles the web debugging proxy application and had great success in emulating network latency. It works on Windows, Mac, and Linux.

Bandwidth throttle / Bandwidth simulator

Charles can be used to adjust the bandwidth and latency of your Internet connection. This enables you to simulate modem conditions using your high-speed connection.

The bandwidth may be throttled to any arbitrary bytes per second. This enables any connection speed to be simulated.

The latency may also be set to any arbitrary number of milliseconds. The latency delay simulates the latency experienced on slower connections, that is the delay between making a request and the request being received at the other end.

DummyNet

You could also use vmware to run BSD or Linux and try this article (DummyNet) or this one.

If you are using Express, the cleanest complete answer is this

const express = require('express')
const app     = express()

app.get('*', (req, res) => {
  // REDIRECT goes here
  res.redirect('https://www.YOUR_URL.com/')
})

app.set('port', (process.env.PORT || 3000))
const server = app.listen(app.get('port'), () => {})

Interesting...

Removing the gutter in Twitter Bootstrap's Default grid, that is, 940px wide. And that the default grid has a 940px wide container and has the bootstrap-responsive.css in it's stylesheet.

If I got your question right, this is how I did it...

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Stackoverflow Question</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="">
    <meta name="author" content="">

    <!-- Le styles -->
    <link rel="stylesheet" href="assets/css/bootstrap.css">
    <link rel="stylesheet" href="assets/css/bootstrap-responsive.css">

    <!-- HTML5 shim, for IE6-8 support of HTML5 elements -->
    <!--[if lt IE 9]>
      <script src="assets/js/html5shiv.js"></script>
    <![endif]-->




    <style type="text/css">
        #main_content [class*="span"] {
            margin-left: 0;
            width: 25%;
        }

        @media (min-width: 768px) and (max-width: 979px) {
            #main_content [class*="span"] {
            margin-left: 0;
            width: 25%;
            }
        }


        @media (max-width: 767px) {
            #main_content [class*="span"] {
            margin-left: 0;
            width: 100%;
            }
        }

        @media (max-width: 480px) {
            #main_content [class*="span"] {
            margin-left: 0;
            width: 100%;
            }
        }

        <!-- For Visual Aid Only -->
        .bg1 {
            background-color: #C2C2C2;
        }

        .bg2 {
            background-color: #D2D2D2;
        }
    </style>
  <body>
    <div id="wrap">
        <div class="container">
            <div class="row-fluid">
                <div class="span1 text-center bg1">01</div>
                <div class="span1 text-center bg2">02</div>
                <div class="span1 text-center bg1">03</div>
                <div class="span1 text-center bg2">04</div>
                <div class="span1 text-center bg1">05</div>
                <div class="span1 text-center bg2">06</div>
                <div class="span1 text-center bg1">07</div>
                <div class="span1 text-center bg2">08</div>
                <div class="span1 text-center bg1">09</div>
                <div class="span1 text-center bg2">10</div>
                <div class="span1 text-center bg1">11</div>
                <div class="span1 text-center bg2">12</div>
            </div>



            <div id="main_content">
                <div class="row-fluid">
                    <div class="span3 text-center bg1">1</div>
                    <div class="span3 text-center bg2">2</div>
                    <div class="span3 text-center bg1">3</div>
                    <div class="span3 text-center bg2">4</div>
                </div>
            </div>
        </div><!--/container-->
    </div>
  </body>
</html>

And the result is..

The 4 div span with no gutter will remain spanned for Small tablet landscape (800x600). Anything size smaller than that will collapse the 4 divs and it will be stacked vertically. Of course you will have to tweak it to fit your needs.

There is a Headers property in the HttpRequestMessage class. You can add custom headers there, which will be sent with each HTTP request. The DefaultRequestHeaders in the HttpClient class, on the other hand, sets headers to be sent with each request sent using that client object, hence the name Default Request Headers.

Hope this makes things more clear, at least for someone seeing this answer in future.

Use Activtiy Context

Replace this

  final EditText input = new EditText(this);

By

  final EditText input = new EditText(MainActivity.this);  
  LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                        LinearLayout.LayoutParams.MATCH_PARENT,
                        LinearLayout.LayoutParams.MATCH_PARENT);
  input.setLayoutParams(lp);
  alertDialog.setView(input); // uncomment this line

Since your desired output is sorted, you also need to sort it:

>>> j=[4, 5, 6, 7, 1, 3, 7, 5]
>>> sorted(x for x in j if x >= 5)
[5, 5, 6, 7, 7]

Use Date.Now instead of DateTime.Now

Try this module: http://pypi.python.org/pypi/interruptingcow/

from interruptingcow import timeout
try:
    with timeout(60*5, exception=RuntimeError):
        while True:
            test = 0
            if test == 5:
                break
            test = test - 1
except RuntimeError:
    pass

From .Net 3.5 you can use LINQ extension method that (sometimes) makes code flow a bit better.

Usage looks like this:

using System.Linq; 

// ...

public void My()
{
    var myArray = new[] { "abc", "123", "zyx" };
    List<string> myList = myArray.ToList();
}

PS. There's also ToArray() method that works in other way.

You can use the AssemblyName class to get the assembly name, provided you have the full name for the assembly:

AssemblyName.GetAssemblyName(Assembly.GetExecutingAssembly().FullName).Name

or

AssemblyName.GetAssemblyName(e.Source).Name

MSDN Reference - AssemblyName Class

UCanAccess is a pure Java JDBC driver that allows us to read from and write to Access databases without using ODBC. It uses two other packages, Jackcess and HSQLDB, to perform these tasks. The following is a brief overview of how to get it set up.

Option 1: Using Maven

If your project uses Maven you can simply include UCanAccess via the following coordinates:

groupId: net.sf.ucanaccess
artifactId: ucanaccess

The following is an excerpt from pom.xml, you may need to update the <version> to get the most recent release:

  <dependencies>
    <dependency>
        <groupId>net.sf.ucanaccess</groupId>
        <artifactId>ucanaccess</artifactId>
        <version>4.0.4</version>
    </dependency>
  </dependencies>

Option 2: Manually adding the JARs to your project

As mentioned above, UCanAccess requires Jackcess and HSQLDB. Jackcess in turn has its own dependencies. So to use UCanAccess you will need to include the following components:

UCanAccess (ucanaccess-x.x.x.jar)
HSQLDB (hsqldb.jar, version 2.2.5 or newer)
Jackcess (jackcess-2.x.x.jar)
commons-lang (commons-lang-2.6.jar, or newer 2.x version)
commons-logging (commons-logging-1.1.1.jar, or newer 1.x version)

Fortunately, UCanAccess includes all of the required JAR files in its distribution file. When you unzip it you will see something like

ucanaccess-4.0.1.jar  
  /lib/
    commons-lang-2.6.jar  
    commons-logging-1.1.1.jar  
    hsqldb.jar  
    jackcess-2.1.6.jar

All you need to do is add all five (5) JARs to your project.

NOTE: Do not add loader/ucanload.jar to your build path if you are adding the other five (5) JAR files. The UcanloadDriver class is only used in special circumstances and requires a different setup. See the related answer here for details.

Eclipse: Right-click the project in Package Explorer and choose Build Path > Configure Build Path.... Click the "Add External JARs..." button to add each of the five (5) JARs. When you are finished your Java Build Path should look something like this

NetBeans: Expand the tree view for your project, right-click the "Libraries" folder and choose "Add JAR/Folder...", then browse to the JAR file.

After adding all five (5) JAR files the "Libraries" folder should look something like this:

IntelliJ IDEA: Choose File > Project Structure... from the main menu. In the "Libraries" pane click the "Add" (+) button and add the five (5) JAR files. Once that is done the project should look something like this:

That's it!

Now "U Can Access" data in .accdb and .mdb files using code like this

// assumes...
//     import java.sql.*;
Connection conn=DriverManager.getConnection(
        "jdbc:ucanaccess://C:/__tmp/test/zzz.accdb");
Statement s = conn.createStatement();
ResultSet rs = s.executeQuery("SELECT [LastName] FROM [Clients]");
while (rs.next()) {
    System.out.println(rs.getString(1));
}

Disclosure

At the time of writing this Q&A I had no involvement in or affiliation with the UCanAccess project; I just used it. I have since become a contributor to the project.

static class Constants
{
    public const int MIN_LENGTH = 5;
    public const int MIN_WIDTH  = 5; 
    public const int MIN_HEIGHT = 6;
}

// elsewhere
public CBox()
{
    length = Constants.MIN_LENGTH; 
    width  = Constants.MIN_WIDTH; 
    height = Constants.MIN_HEIGHT;  
}

A very readable example from another post on similar topic:

var args = [ 'p0', 'p1', 'p2' ];

function call_me (param0, param1, param2 ) {
    // ...
}

// Calling the function using the array with apply()
call_me.apply(this, args);

And here a link to the original post that I personally liked for its readability

wait and notify operations work on implicit lock, and implicit lock is something that make inter thread communication possible. And all objects have got their own copy of implicit object. so keeping wait and notify where implicit lock lives is a good decision.

Alternatively wait and notify could have lived in Thread class as well. than instead of wait() we may have to call Thread.getCurrentThread().wait(), same with notify. For wait and notify operations there are two required parameters, one is thread who will be waiting or notifying other is implicit lock of the object . both are these could be available in Object as well as thread class as well. wait() method in Thread class would have done the same as it is doing in Object class, transition current thread to waiting state wait on the lock it had last acquired.

So yes i think wait and notify could have been there in Thread class as well but its more like a design decision to keep it in object class.

Simple solution to emit and show message by Exception.

try {
  throw new TypeError("Error message");
}
catch (e){
  console.log((<Error>e).message);//conversion to Error type
}

Caution

Above is not a solution if we don't know what kind of error can be emitted from the block. In such cases type guards should be used and proper handling for proper error should be done - take a look on @Moriarty answer.

You can use a range to do that.

git log master..

If you've checked out your my_experiment branch. This will compare where master is at to HEAD (the tip of my_experiment).

It would help if you posted what SQL database you're using. For MySQL you probably want auto_increment:

ALTER TABLE tableName ADD id MEDIUMINT NOT NULL AUTO_INCREMENT KEY

Not sure if this applies the values retroactively though. If it doesn't you should just be able to iterate over your values with a stored procedure or in a simple program (as long as no one else is writing to the database) and set use the LAST_INSERT_ID() function to generate the id value.

How about \A[a-z]*Id\z? [This makes characters before Id optional. Use \A[a-z]+Id\z if there needs to be one or more characters preceding Id.]

Probably the best high level description I have found for tail calls, recursive tail calls and tail call optimization is the blog post

"What the heck is: A tail call"

by Dan Sugalski. On tail call optimization he writes:

Consider, for a moment, this simple function:

sub foo (int a) {
  a += 15;
  return bar(a);
}

So, what can you, or rather your language compiler, do? Well, what it can do is turn code of the form return somefunc(); into the low-level sequence pop stack frame; goto somefunc();. In our example, that means before we call bar, foo cleans itself up and then, rather than calling bar as a subroutine, we do a low-level goto operation to the start of bar. Foo's already cleaned itself out of the stack, so when bar starts it looks like whoever called foo has really called bar, and when bar returns its value, it returns it directly to whoever called foo, rather than returning it to foo which would then return it to its caller.

And on tail recursion:

Tail recursion happens if a function, as its last operation, returns the result of calling itself. Tail recursion is easier to deal with because rather than having to jump to the beginning of some random function somewhere, you just do a goto back to the beginning of yourself, which is a darned simple thing to do.

So that this:

sub foo (int a, int b) {
  if (b == 1) {
    return a;
  } else {
    return foo(a*a + a, b - 1);
  }

gets quietly turned into:

sub foo (int a, int b) {
  label:
    if (b == 1) {
      return a;
    } else {
      a = a*a + a;
      b = b - 1;
      goto label;
   }

What I like about this description is how succinct and easy it is to grasp for those coming from an imperative language background (C, C++, Java)

You can use bootstrap tooltip. Do not forget to initialize it.

<span class="tooltip-r" data-toggle="tooltip" data-placement="left" title="Explanation">
inside span
</span>

Will be shown text Explanation on the left side.

and run it with js:

$('.tooltip-r').tooltip();

    tempData.push( data[index] );

I agree with the correct answer above, but.... your still not giving the index value for the data that you want to add to tempData. Without the [index] value the whole array will be added.

You could install Charles - an HTTP proxy / HTTP monitor / Reverse Proxy that enables a developer to view all of the HTTP and SSL / HTTPS traffic between their machine and the Internet - on your PC or MAC.

Config steps:

• Let your phone and PC or MAC in a same LAN
• Launch Charles which you installed (default proxy port is 8888)
• Setup your phone's wifi configuration: set the ip of delegate to your PC or MAC's ip, port of delegate to 8888
• Lauch your app in your phone. And monitor http requests on Charles.

Try this simple command:

console.log(window)

Remove static keyword in method definition. Keep it just in your class definition.

static keyword placed in .cpp file means that a certain function has a static linkage, ie. it is accessible only from other functions in the same file.

some thing as follows ::

Add this After the body tag

This is a rough sketch, you will need to modify it according to your needs.

<script>
var f = document.createElement("form");
f.setAttribute('method',"post");
f.setAttribute('action',"submit.php");

var i = document.createElement("input"); //input element, text
i.setAttribute('type',"text");
i.setAttribute('name',"username");

var s = document.createElement("input"); //input element, Submit button
s.setAttribute('type',"submit");
s.setAttribute('value',"Submit");

f.appendChild(i);
f.appendChild(s);

//and some more input elements here
//and dont forget to add a submit button

document.getElementsByTagName('body')[0].appendChild(f);

</script>

I think you misunderstand Unicode and its relationship to Perl. No matter which way you store data, Unicode, ISO-8859-1, or many other things, your program has to know how to interpret the bytes it gets as input (decoding) and how to represent the information it wants to output (encoding). Get that interpretation wrong and you garble the data. There isn't some magic default setup inside your program that's going to tell the stuff outside your program how to act.

You think it's hard, most likely, because you are used to everything being ASCII. Everything you should have been thinking about was simply ignored by the programming language and all of the things it had to interact with. If everything used nothing but UTF-8 and you had no choice, then UTF-8 would be just as easy. But not everything does use UTF-8. For instance, you don't want your input handle to think that it's getting UTF-8 octets unless it actually is, and you don't want your output handles to be UTF-8 if the thing reading from them can't handle UTF-8. Perl has no way to know those things. That's why you are the programmer.

I don't think Unicode in Perl 5 is too complicated. I think it's scary and people avoid it. There's a difference. To that end, I've put Unicode in Learning Perl, 6th Edition, and there's a lot of Unicode stuff in Effective Perl Programming. You have to spend the time to learn and understand Unicode and how it works. You're not going to be able to use it effectively otherwise.

here is simple code

List <String> list = new ArrayList <String>();
list.add("a");
list.add("b");
JSONArray array = new JSONArray();
for (int i = 0; i < list.size(); i++) {
        array.put(list.get(i));
}
JSONObject obj = new JSONObject();
try {
    obj.put("result", array);
} catch (JSONException e) {
 // TODO Auto-generated catch block
e.printStackTrace();
}
pw.write(obj.toString());

I like these commands as they use svn status to find the new or missing files, which respects files that are ignored.

svn add $( svn status | sed -e '/^?/!d' -e 's/^?//' )

svn rm $( svn status | sed -e '/^!/!d' -e 's/^!//' )

Choose the project in eclipse - > Select run as -> Choose Java application. This displays a popup forcing you to select something, try searching your class having the main method in the search box. Once you find it, select it and hit ok. This will launch the spring boot application.

I do not have the spring tool suite installed in eclipse yet and still, it works. I hope this helps.

Further reading:

• App Launch time & Themed launch screens (Android Performance Patterns Season 6 Ep. 4)
• Splash screen in Android: The right way

Old answer:

HOW TO: Simple splash screen

This answers shows you how to display a splash screen for a fixed amount of time when your app starts for e.g. branding reasons. E.g. you might choose to show the splash screen for 3 seconds. However if you want to show the spash screen for a variable amount of time (e.g. app startup time) you should check out Abdullah's answer https://stackoverflow.com/a/15832037/401025. However be aware that app startup might be very fast on new devices so the user will just see a flash which is bad UX.

First you need to define the spash screen in your layout.xml file

  <?xml version="1.0" encoding="utf-8"?>
  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:orientation="vertical" android:layout_width="fill_parent"
          android:layout_height="fill_parent">

          <ImageView android:id="@+id/splashscreen" android:layout_width="wrap_content"
                  android:layout_height="fill_parent"
                  android:src="@drawable/splash"
                  android:layout_gravity="center"/>

          <TextView android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:text="Hello World, splash"/>

  </LinearLayout>

And your activity:

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;

public class Splash extends Activity {

    /** Duration of wait **/
    private final int SPLASH_DISPLAY_LENGTH = 1000;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.splashscreen);

        /* New Handler to start the Menu-Activity 
         * and close this Splash-Screen after some seconds.*/
        new Handler().postDelayed(new Runnable(){
            @Override
            public void run() {
                /* Create an Intent that will start the Menu-Activity. */
                Intent mainIntent = new Intent(Splash.this,Menu.class);
                Splash.this.startActivity(mainIntent);
                Splash.this.finish();
            }
        }, SPLASH_DISPLAY_LENGTH);
    }
}

Thats all ;)

FWIW, htpasswd -n username will output the result directly to stdout, and avoid touching files altogether.

If you have a column called "col1" which is int, you cast it to String like this:

CONVERT(col1,char)

e.g. this allows you to check an int value is containing another value (here 9) like this:

CONVERT(col1,char) LIKE '%9%'

IF EXISTS(SELECT TOP 1 1 FROM sys.default_constraints WHERE parent_object_id = OBJECT_ID(N'[dbo].[ChannelPlayerSkins]') AND name = 'FK_ChannelPlayerSkins_Channels')
BEGIN
    DROP CONSTRAINT FK_ChannelPlayerSkins_Channels
END
GO

try:

public ActionResult MyNextAction()
{
    return Redirect(Request.UrlReferrer.ToString());
}

alternatively, touching on what darin said, try this:

public ActionResult MyFirstAction()
{
    return RedirectToAction("MyNextAction",
        new { r = Request.Url.ToString() });
}

then:

public ActionResult MyNextAction()
{
    return Redirect(Request.QueryString["r"]);
}

The empty string is distinct from a null reference in that in an object-oriented programming language a null reference to a string type doesn't point to a string object and will cause an error were one to try to perform any operation on it. The empty string is still a string upon which string operations may be attempted.

From the wikipedia article on empty string.

The first bin in the FFT is DC (0 Hz), the second bin is Fs / N, where Fs is the sample rate and N is the size of the FFT. The next bin is 2 * Fs / N. To express this in general terms, the nth bin is n * Fs / N.

So if your sample rate, Fs is say 44.1 kHz and your FFT size, N is 1024, then the FFT output bins are at:

  0:   0 * 44100 / 1024 =     0.0 Hz
  1:   1 * 44100 / 1024 =    43.1 Hz
  2:   2 * 44100 / 1024 =    86.1 Hz
  3:   3 * 44100 / 1024 =   129.2 Hz
  4: ...
  5: ...
     ...
511: 511 * 44100 / 1024 = 22006.9 Hz

Note that for a real input signal (imaginary parts all zero) the second half of the FFT (bins from N / 2 + 1 to N - 1) contain no useful additional information (they have complex conjugate symmetry with the first N / 2 - 1 bins). The last useful bin (for practical aplications) is at N / 2 - 1, which corresponds to 22006.9 Hz in the above example. The bin at N / 2 represents energy at the Nyquist frequency, i.e. Fs / 2 ( = 22050 Hz in this example), but this is in general not of any practical use, since anti-aliasing filters will typically attenuate any signals at and above Fs / 2.

<asp:GridView ID="grd_item_list" runat="server" AutoGenerateColumns="false" Width="100%" CssClass="table table-bordered table-hover" OnRowCommand="grd_item_list_RowCommand">
    <Columns>
        <asp:TemplateField HeaderText="No">
            <ItemTemplate>
                <%# Container.DataItemIndex + 1 %>
            </ItemTemplate>
        </asp:TemplateField>            
        <asp:TemplateField HeaderText="Actions">
            <ItemTemplate>                    
                <asp:Button ID="remove_itemIndex" OnClientClick="if(confirm('Are You Sure to delete?')==true){ return true;} else{ return false;}" runat="server" class="btn btn-primary" Text="REMOVE" CommandName="REMOVE_ITEM" CommandArgument='<%# Container.DataItemIndex+1 %>' />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

 **This is the row binding event**

protected void grd_item_list_RowCommand(object sender, GridViewCommandEventArgs e) {

    item_list_bind_structure();

    if (ViewState["item_list"] != null)
        dt = (DataTable)ViewState["item_list"];


    if (e.CommandName == "REMOVE_ITEM") {
        var RowNum = Convert.ToInt32(e.CommandArgument.ToString()) - 1;

        DataRow dr = dt.Rows[RowNum];
        dr.Delete();

    }

    grd_item_list.DataSource = dt;
    grd_item_list.DataBind();
}

I don't know if you resolved your problem, but a simple way to resolve this is rebuilding the DataSource (it is a property) of your datagridview. For example:

grdPatient.DataSource = MethodThatReturnList();

So, in that MethodThatReturnList() you can build a List (List is a class) with all the items you need. In my case, I have a method that return the values for two columns that I have on my datagridview.

Pasch.

I think you will want to use ThreadSafeClientConnManager.

You can see how it works here: http://foo.jasonhudgins.com/2009/08/http-connection-reuse-in-android.html

Or in the AndroidHttpClient which uses it internally.

According to seppo0010 comment, I used the rename function to do that.

http://nodejs.org/docs/latest/api/fs.html#fs_fs_rename_oldpath_newpath_callback

fs.rename(oldPath, newPath, callback)

Added in: v0.0.2

oldPath <String> | <Buffer>
newPath <String> | <Buffer>
callback <Function>

Asynchronous rename(2). No arguments other than a possible exception are given to the completion callback.

The Object.entries() method has been specified in ES2017 (and is supported in all modern browsers):

for (const [ key, value ] of Object.entries(dictionary)) {
    // do something with `key` and `value`
}

Explanation:

• Object.entries() takes an object like { a: 1, b: 2, c: 3 } and turns it into an array of key-value pairs: [ [ 'a', 1 ], [ 'b', 2 ], [ 'c', 3 ] ].

• With for ... of we can loop over the entries of the so created array.

• Since we are guaranteed that each of the so iterated array items is itself a two-entry array, we can use destructuring to directly assign variables key and value to its first and second item.

Host your service in any cloud service provider.

$blog is an object, not an array, so you should access it like so:

$blog->id;
$blog->title;
$blog->content;

Example of a Boolean (AND) plus Wildcard search, which I'm using inside a javascript Autocomplete plugin:

String to match: "my word"

String to search: "I'm searching for my funny words inside this text"

You need the following regex: /^(?=.*my)(?=.*word).*$/im

Explaining:

^ assert position at start of a line

?= Positive Lookahead

.* matches any character (except newline)

() Groups

$ assert position at end of a line

i modifier: insensitive. Case insensitive match (ignores case of [a-zA-Z])

m modifier: multi-line. Causes ^ and $ to match the begin/end of each line (not only begin/end of string)

Test the Regex here: https://regex101.com/r/iS5jJ3/1

So, you can create a javascript function that:

1. Replace regex reserved characters to avoid errors
2. Split your string at spaces
3. Encapsulate your words inside regex groups
4. Create a regex pattern
5. Execute the regex match

Example:

function fullTextCompare(myWords, toMatch){_x000D_
    //Replace regex reserved characters_x000D_
    myWords=myWords.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');_x000D_
    //Split your string at spaces_x000D_
    arrWords = myWords.split(" ");_x000D_
    //Encapsulate your words inside regex groups_x000D_
    arrWords = arrWords.map(function( n ) {_x000D_
        return ["(?=.*"+n+")"];_x000D_
    });_x000D_
    //Create a regex pattern_x000D_
    sRegex = new RegExp("^"+arrWords.join("")+".*$","im");_x000D_
    //Execute the regex match_x000D_
    return(toMatch.match(sRegex)===null?false:true);_x000D_
}_x000D_
_x000D_
//Using it:_x000D_
console.log(_x000D_
    fullTextCompare("my word","I'm searching for my funny words inside this text")_x000D_
);_x000D_
_x000D_
//Wildcards:_x000D_
console.log(_x000D_
    fullTextCompare("y wo","I'm searching for my funny words inside this text")_x000D_
);

I had the same problem and it was due to the end of line. I had copied from another document. I put everythng on the same line, then split them again and it worked.

It is the container of the Grid that is imposing on its width. In this case, that's a ListBoxItem, which is left-aligned by default. You can set it to stretch as follows:

<ListBox>
    <!-- other XAML omitted, you just need to add the following bit -->
    <ListBox.ItemContainerStyle>
        <Style TargetType="ListBoxItem">
            <Setter Property="HorizontalAlignment" Value="Stretch"/>
        </Style>
    </ListBox.ItemContainerStyle>
</ListBox>

To add to @luke-west 's excellent answer:

When using CocoaPods

After step 2:

1. Quit XCode.
2. In the master folder, rename OLD.xcworkspace to NEW.xcworkspace.

After step 4:

1. In XCode: choose and edit Podfile from the project navigator. You should see a target clause with the OLD name. Change it to NEW.
2. Quit XCode.
3. In the project folder, delete the OLD.podspec file.
4. rm -rf Pods/
5. Run pod install.
6. Open XCode.
7. Click on your project name in the project navigator.
8. In the main pane, switch to the Build Phases tab.
9. Under Link Binary With Libraries, look for libPods-OLD.a and delete it.
10. If you have an objective-c Bridging header go to Build settings and change the location of the header from OLD/OLD-Bridging-Header.h to NEW/NEW-Bridging-Header.h
11. Clean and run.

There is HTML and URI encodings. & is & encoded in HTML while %26 is & in URI encoding.

So before URI encoding your string you might want to HTML decode and then URI encode it :)

var div = document.createElement('div');
div.innerHTML = '&AndOtherHTMLEncodedStuff';
var htmlDecoded = div.firstChild.nodeValue;
var urlEncoded = encodeURIComponent(htmlDecoded);

result %26AndOtherHTMLEncodedStuff

Hope this saves you some time

There is no way to do this in the GitHub web application. I believe to only way to do this is in the command line using git mv <old name> <new name> or by using a Git client(like SourceTree).

Just store a regular datetime and ignore everything else. Why spend extra time writing code that loads an int, manipulates it, and converts it into a datetime, when you could just load a datetime?

This works in May 2020 using PDFminer six in Python3.

Installing the package

$ pip install pdfminer.six

Importing the package

from pdfminer.high_level import extract_text

Using a PDF saved on disk

text = extract_text('report.pdf')

Or alternatively:

with open('report.pdf','rb') as f:
    text = extract_text(f)

Using PDF already in memory

If the PDF is already in memory, for example if retrieved from the web with the requests library, it can be converted to a stream using the io library:

import io

response = requests.get(url)
text = extract_text(io.BytesIO(response.content))

Performance and Reliability compared with PyPDF2

PDFminer.six works more reliably than PyPDF2 (which fails with certain types of PDFs), in particular PDF version 1.7

However, text extraction with PDFminer.six is significantly slower than PyPDF2 by a factor of 6.

I timed text extraction with timeit on a 15" MBP (2018), timing only the extraction function (no file opening etc.) with a 10 page PDF and got the following results:

PDFminer.six: 2.88 sec
PyPDF2:       0.45 sec

pdfminer.six also has a huge footprint, requiring pycryptodome which needs GCC and other things installed pushing a minimal install docker image on Alpine Linux from 80 MB to 350 MB. PyPDF2 has no noticeable storage impact.

You can do this by writing a manifest for your jar. Have a look at the Class-Path header. Eclipse has an option for choosing your own manifest on export.

The alternative is to add the dependency to the classpath at the time you invoke the application:

win32: java.exe -cp app.jar;dependency.jar foo.MyMainClass
*nix:  java -cp app.jar:dependency.jar foo.MyMainClass

To add to x4u answer, which gives you the floor of the binary log of a number, this function return the ceil of the binary log of a number :

public static int ceilbinlog(int number) // returns 0 for bits=0
{
    int log = 0;
    int bits = number;
    if ((bits & 0xffff0000) != 0) {
        bits >>>= 16;
        log = 16;
    }
    if (bits >= 256) {
        bits >>>= 8;
        log += 8;
    }
    if (bits >= 16) {
        bits >>>= 4;
        log += 4;
    }
    if (bits >= 4) {
        bits >>>= 2;
        log += 2;
    }
    if (1 << log < number)
        log++;
    return log + (bits >>> 1);
}

For those who are searching for a light answer, you can get a simple working example from here:

html {
    position: relative;
    min-height: 100%;
}
body {
    margin-bottom: 60px /* Height of the footer */
}
footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 60px /* Example value */
}

Just play with the body's margin-bottom for adding space between the content and footer.

As mentioned in other answers ORDER BY 1 orders by the first column.

I came across another example of where you might use it though. We have certain queries which need to be ordered select the same column. You would get a SQL error if ordering by Name in the below.

SELECT Name, Name FROM Segment ORDER BY 1

You can create the PDF document using PdfSharp. It is an open source .NET library.

When trying to print the document it get worse. I have looked allover for a open source way of doing it. There are some ways do do it using AcroRd32.exe but it all depends on the version, and it cannot be done without acrobat reader staying open.

I finally ended up using VintaSoftImaging.NET SDK. It costs some money but is much cheaper than the alternative and it solves the problem really easy.

var doc = new Vintasoft.Imaging.Print.ImagePrintDocument { DocumentName = @"C:\Test.pdf" };
doc.Print();

That just prints to the default printer without showing. There are several alternatives and options.

If you're looking to get promise in resource call, you should use

Regions.query().$q.then(function(){ .... })

Update : the promise syntax is changed in current versions which reads

Regions.query().$promise.then(function(){ ..... })

Those who have downvoted don't know what it was and who first added this promise to resource object. I used this feature in late 2012 - yes 2012.

Use the following query:

SELECT * FROM SAMPLE_TABLE ORDER BY ROWID ASC LIMIT 1

Note: Sqlite's row id references are detailed here.

Both the field name and the value should be url encoded. format of the post data and query string are the same

The .net way of doing is something like this

NameValueCollection outgoingQueryString = HttpUtility.ParseQueryString(String.Empty);
outgoingQueryString.Add("field1","value1");
outgoingQueryString.Add("field2", "value2");
string postdata = outgoingQueryString.ToString();

This will take care of encoding the fields and the value names

Try this.

function getElementsByIdStartsWith(container, selectorTag, prefix) {
    var items = [];
    var myPosts = document.getElementById(container).getElementsByTagName(selectorTag);
    for (var i = 0; i < myPosts.length; i++) {
        //omitting undefined null check for brevity
        if (myPosts[i].id.lastIndexOf(prefix, 0) === 0) {
            items.push(myPosts[i]);
        }
    }
    return items;
}

Sample HTML Markup.

<div id="posts">
    <div id="post-1">post 1</div>
    <div id="post-12">post 12</div>
    <div id="post-123">post 123</div>
    <div id="pst-123">post 123</div>
</div>

Call it like

var postedOnes = getElementsByIdStartsWith("posts", "div", "post-");

Demo here: http://jsfiddle.net/naveen/P4cFu/

Are you also validating server-side? This is very important.

Using regular expressions for e-mail isn't considered best practice since it's almost impossible to properly encapsulate all of the standards surrounding email. If you do have to use regular expressions I'll usually go down the route of something like:

^.+@.+$

which basically checks you have a value that contains an @. You would then back that up with verification by sending an e-mail to that address.

Any other kind of regex means you risk turning down completely valid e-mail addresses, other than that I agree with the answer provided by @Ben.

I came across this error by writing a Build script that would put MSBuild on the %PATH% after recursively digging through the C:\Windows\Microsoft.NET folder for any found MSBuild.exe files. The last found hit was the directory that was put on the path. Since the dir command would hit the Framework64 folder after Framework I was getting one of the 64bit MSBuilds put on my path. I was trying to build a Visual Studio 2010 solution and wound up altering my search string from C:\Windows\Microsoft.NET to C:\Windows\Microsoft.NET\Framework so that I would wind up with a 32bit MSBuild.exe. Now my solution file builds.

That's all fine and good -- but what if you want to select an existing element as the default? In my issue there is no "--select a value--" option.

Here's my code -- you could make it into a one liner if you didn't want to check for no results I suppose...

private void LoadCombo(ComboBox cb, string itemType, string defVal = "")
{
    cb.DisplayMember = "Name";
    cb.ValueMember = "ItemCode";
    cb.DataSource = db.Items.Where(q => q.ItemTypeId == itemType).ToList();

    if (!string.IsNullOrEmpty(defVal))
    {
        var i = ((List<GCC_Pricing.Models.Item>)cb.DataSource).FindIndex(q => q.ItemCode == defVal);
        if (i>=0) cb.SelectedIndex = i;
    }
}

It would be neater to create a folder named "c:\programs writable\" and put you app below that one. That way a jungle of low c-folders can be avoided.

The underlying trade-off is security versus ease-of-use. If you know what you are doing you want to be god on you own pc. If you must maintain healthy systems for your local anarchistic society, you may want to add some security.

The Miro video converter does a beautiful job and is drag-n-drop. http://www.mirovideoconverter.com/

BTW it's FREE and also very good for mobile device encoding.

I was looking for an easier-to-read time-loop when I encountered this question here. Something like:

for sec in max_seconds(10):
      do_something()

So I created this helper:

# allow easy time-boxing: 'for sec in max_seconds(42): do_something()'
def max_seconds(max_seconds, *, interval=1):
    interval = int(interval)
    start_time = time.time()
    end_time = start_time + max_seconds
    yield 0
    while time.time() < end_time:
        if interval > 0:
            next_time = start_time
            while next_time < time.time():
                next_time += interval
            time.sleep(int(round(next_time - time.time())))
        yield int(round(time.time() - start_time))
        if int(round(time.time() + interval)) > int(round(end_time)): 
            return

It only works with full seconds which was OK for my use-case.

Examples:

for sec in max_seconds(10) # -> 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
for sec in max_seconds(10, interval=3) # -> 0, 3, 6, 9
for sec in max_seconds(7): sleep(1.5) # -> 0, 2, 4, 6
for sec in max_seconds(8): sleep(1.5) # -> 0, 2, 4, 6, 8

Be aware that interval isn't that accurate, as I only wait full seconds (sleep never was any good for me with times < 1 sec). So if your job takes 500 ms and you ask for an interval of 1 sec, you'll get called at: 0, 500ms, 2000ms, 2500ms, 4000ms and so on. One could fix this by measuring time in a loop rather than sleep() ...

take a look at Trim() which returns a new string with whitespace removed from the beginning and end of the string it is called on.

I will suggest using time.RFC3339 constant from time package. You can check other constants from time package. https://golang.org/pkg/time/#pkg-constants

package main

import (
    "fmt"
    "time"
)

func main() {
    fmt.Println("Time parsing");
    dateString := "2014-11-12T11:45:26.371Z"
    time1, err := time.Parse(time.RFC3339,dateString);
    if err!=nil {
    fmt.Println("Error while parsing date :", err);
    }
    fmt.Println(time1); 
}

Adding to what David Whittaker posted, I have created a query that generates the complete table and columns alter statement that will convert each table. It may be a good idea to run

SET SESSION group_concat_max_len = 100000;

first to make sure your group concat doesn't go over the very small limit as seen here.

     SELECT a.table_name, concat('ALTER TABLE ', a.table_schema, '.', a.table_name, ' DEFAULT CHARACTER SET utf8mb4 DEFAULT COLLATE utf8mb4_unicode_ci, ',
        group_concat(distinct(concat(' MODIFY ',  column_name, ' ', column_type, ' CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ', if (is_nullable = 'NO', ' NOT', ''), ' NULL ',
        if (COLUMN_DEFAULT is not null, CONCAT(' DEFAULT \'', COLUMN_DEFAULT, '\''), ''), if (EXTRA != '', CONCAT(' ', EXTRA), '')))), ';') as alter_statement
    FROM information_schema.columns a
    INNER JOIN INFORMATION_SCHEMA.TABLES b ON a.TABLE_CATALOG = b.TABLE_CATALOG
        AND a.TABLE_SCHEMA = b.TABLE_SCHEMA
        AND a.TABLE_NAME = b.TABLE_NAME
        AND b.table_type != 'view'
    WHERE a.table_schema = ? and (collation_name = 'latin1_swedish_ci' or collation_name = 'utf8mb4_general_ci')
    GROUP BY table_name;

A difference here between the previous answer is it was using utf8 instead of ut8mb4 and using t1.data_type with t1.CHARACTER_MAXIMUM_LENGTH didn't work for enums. Also, my query excludes views since those will have to altered separately.

I simply used a Perl script to return all these alters as an array and iterated over them, fixed the columns that were too long (generally they were varchar(256) when the data generally only had 20 characters in them so that was an easy fix).

I found some data was corrupted when altering from latin1 -> utf8mb4. It appeared to be utf8 encoded latin1 characters in columns would get goofed in the conversion. I simply held data from the columns I knew was going to be an issue in memory from before and after the alter and compared them and generated update statements to fix the data.

In my case setting AppPool->AdvancedSettings->Maximum Worker Proccesses to 1 helped.

my example would be:

<div id="showTime"></div>

    function x() {
    var showTime = document.getElementById("showTime");
    var myTime = new Date();
    var hour = myTime.getHours();
    var minu = myTime.getMinutes();
    var secs = myTime.getSeconds();
    if (hour < 10) {
        hour = "0" + hour
    };
    if (minu < 10) {
        minu = "0" + minu
    };
    if (secs < 10) {
        secs = "0" + secs
    };

    showTime.innerHTML = hour + ":" + minu + ":" + secs;
}

setInterval("x()", 1000)

I started getting this error after converting my project into a typescript project. From what I understand, the problem stems from async/await not being recognized.

For me the error was fixed by adding two things to my setup:

1. As mentioned above many times, I needed to add babel-polyfill into my webpack entry array:

   ...
   
   entry: ['babel-polyfill', './index.js'],
   
   ...

2. I needed to update my .babelrc to allow the complilation of async/await into generators:

   {
     "presets": ["es2015"],
     "plugins": ["transform-async-to-generator"]
   }

DevDependencies:

I had to install a few things into my devDependencies in my package.json file as well. Namely, I was missing the babel-plugin-transform-async-to-generator, babel-polyfill and the babel-preset-es2015:

 "devDependencies": {
    "babel-loader": "^6.2.2",
    "babel-plugin-transform-async-to-generator": "^6.5.0",
    "babel-polyfill": "^6.5.0",
    "babel-preset-es2015": "^6.5.0",
    "webpack": "^1.12.13"
 }

Full Code Gist:

I got the code from a really helpful and concise GitHub gist you can find here.

Using hamishmcn's answer as a template I was able to search for a line in a file that match my regex and replacing it with empty string.

import re 

fin = open("in.txt", 'r') # in file
fout = open("out.txt", 'w') # out file
for line in fin:
    p = re.compile('[-][0-9]*[.][0-9]*[,]|[-][0-9]*[,]') # pattern
    newline = p.sub('',line) # replace matching strings with empty string
    print newline
    fout.write(newline)
fin.close()
fout.close()

A ClassNotFoundException is thrown when the reported class is not found by the ClassLoader. This typically means that the class is missing from the CLASSPATH. It could also mean that the class in question is trying to be loaded from another class which was loaded in a parent classloader and hence the class from the child classloader is not visible. This is sometimes the case when working in more complex environments like an App Server (WebSphere is infamous for such classloader issues).

People often tend to confuse java.lang.NoClassDefFoundError with java.lang.ClassNotFoundException however there's an important distinction. For example an exception (an error really since java.lang.NoClassDefFoundError is a subclass of java.lang.Error) like

java.lang.NoClassDefFoundError:
org/apache/activemq/ActiveMQConnectionFactory

does not mean that the ActiveMQConnectionFactory class is not in the CLASSPATH. Infact its quite the opposite. It means that the class ActiveMQConnectionFactory was found by the ClassLoader however when trying to load the class, it ran into an error reading the class definition. This typically happens when the class in question has static blocks or members which use a Class that's not found by the ClassLoader. So to find the culprit, view the source of the class in question (ActiveMQConnectionFactory in this case) and look for code using static blocks or static members. If you don't have access the the source, then simply decompile it using JAD.

On examining the code, say you find a line of code like below, make sure that the class SomeClass in in your CLASSPATH.

private static SomeClass foo = new SomeClass();

Tip : To find out which jar a class belongs to, you can use the web site jarFinder . This allows you to specify a class name using wildcards and it searches for the class in its database of jars. jarhoo allows you to do the same thing but its no longer free to use.

If you would like to locate the which jar a class belongs to in a local path, you can use a utility like jarscan ( http://www.inetfeedback.com/jarscan/ ). You just specify the class you'd like to locate and the root directory path where you'd like it to start searching for the class in jars and zip files.

In C# you can use the backslash to put special characters to your string. For example, to put ", you need to write \". There are a lot of characters that you write using the backslash: Backslash with a number:

• \000 null
• \010 backspace
• \011 horizontal tab
• \012 new line
• \015 carriage return
• \032 substitute
• \042 double quote
• \047 single quote
• \134 backslash
• \140 grave accent

Backslash with othe character

• \a Bell (alert)
• \b Backspace
• \f Formfeed
• \n New line
• \r Carriage return
• \t Horizontal tab
• \v Vertical tab
• \' Single quotation mark
• \" Double quotation mark
• \ Backslash
• \? Literal question mark
• \ ooo ASCII character in octal notation
• \x hh ASCII character in hexadecimal notation
• \x hhhh Unicode character in hexadecimal notation if this escape sequence is used in a wide-character constant or a Unicode string literal. For example, WCHAR f = L'\x4e00' or WCHAR b[] = L"The Chinese character for one is \x4e00".

I use this on my macbook:

" configure expanding of tabs for various file types
au BufRead,BufNewFile *.py set expandtab
au BufRead,BufNewFile *.c set expandtab
au BufRead,BufNewFile *.h set expandtab
au BufRead,BufNewFile Makefile* set noexpandtab

" --------------------------------------------------------------------------------
" configure editor with tabs and nice stuff...
" --------------------------------------------------------------------------------
set expandtab           " enter spaces when tab is pressed
set textwidth=120       " break lines when line length increases
set tabstop=4           " use 4 spaces to represent tab
set softtabstop=4
set shiftwidth=4        " number of spaces to use for auto indent
set autoindent          " copy indent from current line when starting a new line

" make backspaces more powerfull
set backspace=indent,eol,start

set ruler                           " show line and column number
syntax on               " syntax highlighting
set showcmd             " show (partial) command in status line

(edited to only show stuff related to indent / tabs)

Image provides an abstract access to an arbitrary image , it defines a set of methods that can loggically be applied upon any implementation of Image. Its not bounded to any particular image format or implementation . Bitmap is a specific implementation to the image abstract class which encapsulate windows GDI bitmap object. Bitmap is just a specific implementation to the Image abstract class which relay on the GDI bitmap Object.

You could for example , Create your own implementation to the Image abstract , by inheriting from the Image class and implementing the abstract methods.

Anyway , this is just a simple basic use of OOP , it shouldn't be hard to catch.

Yes, there are several ways to do it. For instance, you can convert the list to a string and then remove the first and last characters:

l = ['a', 2, 'c']
print str(l)[1:-1]
'a', 2, 'c'

If your list contains only strings and you want remove the quotes too then you can use the join method as has already been said.

As the error message is trying very hard to tell you, you can't deserialize a single object into a collection (List<>).

You want to deserialize into a single RootObject.

I have faced this problem in many occassions when I try to start an old rails 2.3.5 project after having worked with rails 3>. In my case to solve the problem, I must do a rubygems update to version 1.4.2, this is:

sudo gem update --system 1.4.2

I know this thread is little old, but would like to add my 2 cents. We had the same "connection reset" error right after our one of the releases.

The root cause was, our apache server was brought down for deployment. All our third party traffic goes thru apache and we were getting connection reset error because of it being down.

As you comment in your question, awk is really the way to go. To use cut is possible together with tr -s to squeeze spaces, as kev's answer shows.

Let me however go through all the possible combinations for future readers. Explanations are at the Test section.

tr | cut

tr -s ' ' < file | cut -d' ' -f4

awk

awk '{print $4}' file

bash

while read -r _ _ _ myfield _
do
   echo "forth field: $myfield"
done < file

sed

sed -r 's/^([^ ]*[ ]*){3}([^ ]*).*/\2/' file

Tests

Given this file, let's test the commands:

$ cat a
this   is    line     1 more text
this      is line    2     more text
this    is line 3     more text
this is   line 4            more    text

tr | cut

$ cut -d' ' -f4 a
is
                        # it does not show what we want!


$ tr -s ' ' < a | cut -d' ' -f4
1
2                       # this makes it!
3
4
$

awk

$ awk '{print $4}' a
1
2
3
4

bash

This reads the fields sequentially. By using _ we indicate that this is a throwaway variable as a "junk variable" to ignore these fields. This way, we store $myfield as the 4th field in the file, no matter the spaces in between them.

$ while read -r _ _ _ a _; do echo "4th field: $a"; done < a
4th field: 1
4th field: 2
4th field: 3
4th field: 4

sed

This catches three groups of spaces and no spaces with ([^ ]*[ ]*){3}. Then, it catches whatever coming until a space as the 4th field, that it is finally printed with \1.

$ sed -r 's/^([^ ]*[ ]*){3}([^ ]*).*/\2/' a
1
2
3
4

Make sure your tests are properly marked with the Test attribute. If all of the tests are marked with only the Explicit attribute, the TestAdapter doesn't recognize the fixture.

You don't define the vector, url, before trying to subset it. url is also a function in the base package, so url[i] is attempting to subset that function... which doesn't make sense.

You probably defined url in your prior R session, but forgot to copy that code to your script.

I think the proxy_set_header directive could help:

location / {
    proxy_pass http://my_app_upstream;
    proxy_set_header Host $host;
    # ...
}

None of the older answers describe exit status 2 correctly. Contrary to what they claim, status 2 is what your command line utilities actually return when called improperly. (Yes, an answer can be nine years old, have hundreds of upvotes, and still be wrong.)

Here is the real, long-standing exit status convention for normal termination, i.e. not by signal:

• Exit status 0: success
• Exit status 1: "failure", as defined by the program
• Exit status 2: command line usage error

For example, diff returns 0 if the files it compares are identical, and 1 if they differ. By long-standing convention, unix programs return exit status 2 when called incorrectly (unknown options, wrong number of arguments, etc.) For example, diff -N, grep -Y or diff a b c will all result in $? being set to 2. This is and has been the practice since the early days of Unix in the 1970s.

The accepted answer explains what happens when a command is terminated by a signal. In brief, termination due to an uncaught signal results in exit status 128+[<signal number>. E.g., termination by SIGINT (signal 2) results in exit status 130.

Notes

1. Several answers define exit status 2 as "Misuse of bash builtins". This applies only when bash (or a bash script) exits with status 2. Consider it a special case of incorrect usage error.

2. In sysexits.h, mentioned in the most popular answer, exit status EX_USAGE ("command line usage error") is defined to be 64. But this does not reflect reality: I am not aware of any common Unix utility that returns 64 on incorrect invocation (examples welcome). Careful reading of the source code reveals that sysexits.h is aspirational, rather than a reflection of true usage:

    *    This include file attempts to categorize possible error
    *    exit statuses for system programs, notably delivermail
    *    and the Berkeley network.
   
    *    Error numbers begin at EX__BASE [64] to reduce the possibility of 
    *    clashing with oth­er exit statuses that random programs may 
    *    already return. 
   

   In other words, these definitions do not reflect the common practice at the time (1993) but were intentionally incompatible with it. More's the pity.

This has already been answered, but I think the simplest syntax is:

CREATE TABLE History (
    ID int primary key IDENTITY(1,1) NOT NULL,
    . . .

The more complicated constraint index is useful when you actually want to change the options.

By the way, I prefer to name such a column HistoryId, so it matches the names of the columns in foreign key relationships.

These answers are very helpful, but i want to add another answer, that may help you build full URL. This can help you concat base url, path, hash and parameters.

var url = buildUrl('http://mywebsite.com', {
        path: 'about',
        hash: 'contact',
        queryParams: {
            'var1': 'value',
            'var2': 'value2',
            'arr[]' : 'foo'
        }
    });
    console.log(url);

You can download via npm https://www.npmjs.com/package/build-url

Demo:

;(function () {_x000D_
  'use strict';_x000D_
_x000D_
  var root = this;_x000D_
  var previousBuildUrl = root.buildUrl;_x000D_
_x000D_
  var buildUrl = function (url, options) {_x000D_
    var queryString = [];_x000D_
    var key;_x000D_
    var builtUrl;_x000D_
    var caseChange; _x000D_
    _x000D_
    // 'lowerCase' parameter default = false,  _x000D_
    if (options && options.lowerCase) {_x000D_
        caseChange = !!options.lowerCase;_x000D_
    } else {_x000D_
        caseChange = false;_x000D_
    }_x000D_
_x000D_
    if (url === null) {_x000D_
      builtUrl = '';_x000D_
    } else if (typeof(url) === 'object') {_x000D_
      builtUrl = '';_x000D_
      options = url;_x000D_
    } else {_x000D_
      builtUrl = url;_x000D_
    }_x000D_
_x000D_
    if(builtUrl && builtUrl[builtUrl.length - 1] === '/') {_x000D_
      builtUrl = builtUrl.slice(0, -1);_x000D_
    } _x000D_
_x000D_
    if (options) {_x000D_
      if (options.path) {_x000D_
          var localVar = String(options.path).trim(); _x000D_
          if (caseChange) {_x000D_
            localVar = localVar.toLowerCase();_x000D_
          }_x000D_
          if (localVar.indexOf('/') === 0) {_x000D_
              builtUrl += localVar;_x000D_
          } else {_x000D_
            builtUrl += '/' + localVar;_x000D_
          }_x000D_
      }_x000D_
_x000D_
      if (options.queryParams) {_x000D_
        for (key in options.queryParams) {_x000D_
          if (options.queryParams.hasOwnProperty(key) && options.queryParams[key] !== void 0) {_x000D_
            var encodedParam;_x000D_
            if (options.disableCSV && Array.isArray(options.queryParams[key]) && options.queryParams[key].length) {_x000D_
              for(var i = 0; i < options.queryParams[key].length; i++) {_x000D_
                encodedParam = encodeURIComponent(String(options.queryParams[key][i]).trim());_x000D_
                queryString.push(key + '=' + encodedParam);_x000D_
              }_x000D_
            } else {              _x000D_
              if (caseChange) {_x000D_
                encodedParam = encodeURIComponent(String(options.queryParams[key]).trim().toLowerCase());_x000D_
              }_x000D_
              else {_x000D_
                encodedParam = encodeURIComponent(String(options.queryParams[key]).trim());_x000D_
              }_x000D_
              queryString.push(key + '=' + encodedParam);_x000D_
            }_x000D_
          }_x000D_
        }_x000D_
        builtUrl += '?' + queryString.join('&');_x000D_
      }_x000D_
_x000D_
      if (options.hash) {_x000D_
        if(caseChange)_x000D_
            builtUrl += '#' + String(options.hash).trim().toLowerCase();_x000D_
        else_x000D_
            builtUrl += '#' + String(options.hash).trim();_x000D_
      }_x000D_
    } _x000D_
    return builtUrl;_x000D_
  };_x000D_
_x000D_
  buildUrl.noConflict = function () {_x000D_
    root.buildUrl = previousBuildUrl;_x000D_
    return buildUrl;_x000D_
  };_x000D_
_x000D_
  if (typeof(exports) !== 'undefined') {_x000D_
    if (typeof(module) !== 'undefined' && module.exports) {_x000D_
      exports = module.exports = buildUrl;_x000D_
    }_x000D_
    exports.buildUrl = buildUrl;_x000D_
  } else {_x000D_
    root.buildUrl = buildUrl;_x000D_
  }_x000D_
}).call(this);_x000D_
_x000D_
_x000D_
var url = buildUrl('http://mywebsite.com', {_x000D_
  path: 'about',_x000D_
  hash: 'contact',_x000D_
  queryParams: {_x000D_
   'var1': 'value',_x000D_
   'var2': 'value2',_x000D_
   'arr[]' : 'foo'_x000D_
  }_x000D_
 });_x000D_
 console.log(url);

Click on Attach Debuger to Android Process and Click On Restart ADB.

u could try this it produces randomly generated array of true and false :

a=[bool(i) for i in np.array(np.random.randint(0,2,10))]

out: [True, True, True, True, True, False, True, False, True, False]

To add to the solutions, here is a LINQ statement that might help

Utilities.DIMENSION_MemTbl.Where(a => a.DIMENSION_ID == format.ContentBrief.DimensionID).Select(a=>a.DIMENSION1).DefaultIfEmpty("").FirstOrDefault();

The result will be an empty string if the result of the query is a null..

When you write your script on windows environment and you want to run it on unix environnement you need to be careful about the encodage :

dos2unix $filePath

WITHOUT USING JAVASCRIPT

Just add #t=[(start_time), (end_time)] to the end of your media URL. The only setback (if you want to see it that way) is you'll need to know how long your video is to indicate the end time. Example:

<video>
    <source src="splash.mp4#t=10,20" type="video/mp4">
</video>

Notes: Not supported in IE

SELECT @LastChangeDate = GETDATE()

It might be obvious, but make sure that you are sending to the parser URL object not a String containing www adress. This will not work:

    ObjectMapper mapper = new ObjectMapper();
    String www = "www.sample.pl";
    Weather weather = mapper.readValue(www, Weather.class);

But this will:

    ObjectMapper mapper = new ObjectMapper();
    URL www = new URL("http://www.oracle.com/");
    Weather weather = mapper.readValue(www, Weather.class);

? 1. Can I set state inside a useEffect hook?

In principle, you can set state freely where you need it - including inside useEffect and even during rendering. Just make sure to avoid infinite loops by settting Hook deps properly and/or state conditionally.

? 2. Lets say I have some state that is dependent on some other state. Is it appropriate to create a hook that observes A and sets B inside the useEffect hook?

You just described the classic use case for useReducer:

useReducer is usually preferable to useState when you have complex state logic that involves multiple sub-values or when the next state depends on the previous one. (React docs)

When setting a state variable depends on the current value of another state variable, you might want to try replacing them both with useReducer. [...] When you find yourself writing setSomething(something => ...), it’s a good time to consider using a reducer instead. (Dan Abramov, Overreacted blog)

let MyComponent = () => {_x000D_
  let [state, dispatch] = useReducer(reducer, { a: 1, b: 2 });_x000D_
_x000D_
  useEffect(() => {_x000D_
    console.log("Some effect with B");_x000D_
  }, [state.b]);_x000D_
_x000D_
  return (_x000D_
    <div>_x000D_
      <p>A: {state.a}, B: {state.b}</p>_x000D_
      <button onClick={() => dispatch({ type: "SET_A", payload: 5 })}>_x000D_
        Set A to 5 and Check B_x000D_
      </button>_x000D_
      <button onClick={() => dispatch({ type: "INCREMENT_B" })}>_x000D_
        Increment B_x000D_
      </button>_x000D_
    </div>_x000D_
  );_x000D_
};_x000D_
_x000D_
// B depends on A. If B >= A, then reset B to 1._x000D_
function reducer(state, { type, payload }) {_x000D_
  const someCondition = state.b >= state.a;_x000D_
_x000D_
  if (type === "SET_A")_x000D_
    return someCondition ? { a: payload, b: 1 } : { ...state, a: payload };_x000D_
  else if (type === "INCREMENT_B") return { ...state, b: state.b + 1 };_x000D_
  return state;_x000D_
}_x000D_
_x000D_
ReactDOM.render(<MyComponent />, document.getElementById("root"));

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.13.0/umd/react.production.min.js" integrity="sha256-32Gmw5rBDXyMjg/73FgpukoTZdMrxuYW7tj8adbN8z4=" crossorigin="anonymous"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.13.0/umd/react-dom.production.min.js" integrity="sha256-bjQ42ac3EN0GqK40pC9gGi/YixvKyZ24qMP/9HiGW7w=" crossorigin="anonymous"></script>_x000D_
<div id="root"></div>_x000D_
<script>var { useReducer, useEffect } = React</script>

? 3. Will the effects cascade such that, when I click the button, the first effect will fire, causing b to change, causing the second effect to fire, before the next render?

useEffect always runs after the render is committed and DOM changes are applied. The first effect fires, changes b and causes a re-render. After this render has completed, second effect will run due to b changes.

let MyComponent = props => {_x000D_
  console.log("render");_x000D_
  let [a, setA] = useState(1);_x000D_
  let [b, setB] = useState(2);_x000D_
_x000D_
  let isFirstRender = useRef(true);_x000D_
_x000D_
  useEffect(() => {_x000D_
    console.log("useEffect a, value:", a);_x000D_
    if (isFirstRender.current) isFirstRender.current = false;_x000D_
    else setB(3);_x000D_
    return () => {_x000D_
      console.log("unmount useEffect a, value:", a);_x000D_
    };_x000D_
  }, [a]);_x000D_
  useEffect(() => {_x000D_
    console.log("useEffect b, value:", b);_x000D_
    return () => {_x000D_
      console.log("unmount useEffect b, value:", b);_x000D_
    };_x000D_
  }, [b]);_x000D_
_x000D_
  return (_x000D_
    <div>_x000D_
      <p>a: {a}, b: {b}</p>_x000D_
      <button_x000D_
        onClick={() => {_x000D_
          console.log("Clicked!");_x000D_
          setA(5);_x000D_
        }}_x000D_
      >_x000D_
        click me_x000D_
      </button>_x000D_
    </div>_x000D_
  );_x000D_
};_x000D_
_x000D_
ReactDOM.render(<MyComponent />, document.getElementById("root"));

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.13.0/umd/react.production.min.js" integrity="sha256-32Gmw5rBDXyMjg/73FgpukoTZdMrxuYW7tj8adbN8z4=" crossorigin="anonymous"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.13.0/umd/react-dom.production.min.js" integrity="sha256-bjQ42ac3EN0GqK40pC9gGi/YixvKyZ24qMP/9HiGW7w=" crossorigin="anonymous"></script>_x000D_
<div id="root"></div>_x000D_
<script>var { useReducer, useEffect, useState, useRef } = React</script>

? 4. Are there any performance downsides to structuring code like this?

Yes. By wrapping the state change of b in a separate useEffect for a, the browser has an additional layout/paint phase - these effects are potentially visible for the user. If there is no way you want give useReducer a try, you could change b state together with a directly:

let MyComponent = () => {_x000D_
  console.log("render");_x000D_
  let [a, setA] = useState(1);_x000D_
  let [b, setB] = useState(2);_x000D_
_x000D_
  useEffect(() => {_x000D_
    console.log("useEffect b, value:", b);_x000D_
    return () => {_x000D_
      console.log("unmount useEffect b, value:", b);_x000D_
    };_x000D_
  }, [b]);_x000D_
_x000D_
  const handleClick = () => {_x000D_
    console.log("Clicked!");_x000D_
    setA(5);_x000D_
    b >= 5 ? setB(1) : setB(b + 1);_x000D_
  };_x000D_
_x000D_
  return (_x000D_
    <div>_x000D_
      <p>_x000D_
        a: {a}, b: {b}_x000D_
      </p>_x000D_
      <button onClick={handleClick}>click me</button>_x000D_
    </div>_x000D_
  );_x000D_
};_x000D_
_x000D_
ReactDOM.render(<MyComponent />, document.getElementById("root"));

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.13.0/umd/react.production.min.js" integrity="sha256-32Gmw5rBDXyMjg/73FgpukoTZdMrxuYW7tj8adbN8z4=" crossorigin="anonymous"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.13.0/umd/react-dom.production.min.js" integrity="sha256-bjQ42ac3EN0GqK40pC9gGi/YixvKyZ24qMP/9HiGW7w=" crossorigin="anonymous"></script>_x000D_
<div id="root"></div>_x000D_
<script>var { useReducer, useEffect, useState, useRef } = React</script>

jQuery methods returns the set they were applied on.

Use .appendTo:

var $div = $('<div />').appendTo('body');
$div.attr('id', 'holdy');

Git repository friendly method

git-tab-to-space() (
  d="$(mktemp -d)"
  git grep --cached -Il '' | grep -E "${1:-.}" | \
    xargs -I'{}' bash -c '\
    f="${1}/f" \
    && expand -t 4 "$0" > "$f" && \
    chmod --reference="$0" "$f" && \
    mv "$f" "$0"' \
    '{}' "$d" \
  ;
  rmdir "$d"
)

Act on all files under the current directory:

git-tab-to-space

Act only on C or C++ files:

git-tab-to-space '\.(c|h)(|pp)$'

You likely want this notably because of those annoying Makefiles which require tabs.

The command git grep --cached -Il '':

• lists only the tracked files, so nothing inside .git
• excludes directories, binary files (would be corrupted), and symlinks (would be converted to regular files)

as explained at: How to list all text (non-binary) files in a git repository?

chmod --reference keeps the file permissions unchanged: https://unix.stackexchange.com/questions/20645/clone-ownership-and-permissions-from-another-file Unfortunately I can't find a succinct POSIX alternative.

If your codebase had the crazy idea to allow functional raw tabs in strings, use:

expand -i

and then have fun going over all non start of line tabs one by one, which you can list with: Is it possible to git grep for tabs?

Tested on Ubuntu 18.04.

For duplicating large files, xopy with /J switch is a good choice. In this case, simply pipe an F for file or a D for directory. Also, you can save jobs in an array for future references. For example:

$MyScriptBlock = {
    Param ($SOURCE, $DESTINATION) 
    'F' | XCOPY $SOURCE $DESTINATION /J/Y 
    #DESTINATION IS FILE, COPY WITHOUT PROMPT IN DIRECT BUFFER MODE
}
JOBS +=START-JOB -SCRIPTBLOCK $MyScriptBlock -ARGUMENTLIST $SOURCE,$DESTIBNATION
$JOBS | WAIT-JOB | REMOVE-JOB

Thanks to Chand with a bit modifications: https://stackoverflow.com/users/3705330/chand

Base on @rap-2-h answer,Here the code for using text on doughnut chart on Chart.js for using in dashboard like. It has dynamic font-size for responsive option.

HTML:

<div>text
<canvas id="chart-area" width="300" height="300" style="border:1px solid"/><div>

Script:

var doughnutData = [
            {
                value: 100,
                color:"#F7464A",
                highlight: "#FF5A5E",
                label: "Red"
            },
            {
                value: 50,
                color: "#CCCCCC",
                highlight: "#5AD3D1",
                label: "Green"
            }
        ];

$(document).ready(function(){
  var ctx = $('#chart-area').get(0).getContext("2d");

  var myDoughnut = new Chart(ctx).Doughnut(doughnutData,{
     animation:true,
     responsive: true,
     showTooltips: false,
     percentageInnerCutout : 70,
     segmentShowStroke : false,
     onAnimationComplete: function() {

     var canvasWidthvar = $('#chart-area').width();
     var canvasHeight = $('#chart-area').height();
     //this constant base on canvasHeight / 2.8em
     var constant = 114;
     var fontsize = (canvasHeight/constant).toFixed(2);
     ctx.font=fontsize +"em Verdana";
     ctx.textBaseline="middle"; 
     var total = 0;
     $.each(doughnutData,function() {
       total += parseInt(this.value,10);
   });
  var tpercentage = ((doughnutData[0].value/total)*100).toFixed(2)+"%";
  var textWidth = ctx.measureText(tpercentage).width;

   var txtPosx = Math.round((canvasWidthvar - textWidth)/2);
    ctx.fillText(tpercentage, txtPosx, canvasHeight/2);
  }
 });
});

Here the sample code.try to resize the window. http://jsbin.com/wapono/13/edit

insert into AGREGADORES_AGREGADORES (IDAGREGADOR,NOMBRE,URL)
values (2,'Netvibes',
'http://www.netvibes.com/subscribe.php?type=rss' || chr(38) || 'amp;url=');

I have come to similar question when I execute the bulk insert in SSMS it's working but it failed and returned with "Operation system failure code 5" when converting the task into SQL Server Agent.

After browsing lots of solutions posted previously, this way solved my problem by granting the NT SERVER/SQLSERVERAGENT with the 'full control" access right to the source folder. Hope it would bring some light to these people who are still struggling with the error message.

select table1.price, table2.price as other_price .....

I think the point of those different types of logging is if you want your app to basically self filter its own logs. So Verbose could be to log absolutely everything of importance in your app, then the debug level would log a subset of the verbose logs, and then Info level will log a subset of the debug logs. When you get down to the Error logs, then you just want to log any sort of errors that may have occured. There is also a debug level called Fatal for when something really hits the fan in your app.

In general, you're right, it's basically arbitrary, and it's up to you to define what is considered a debug log versus informational, versus and error, etc. etc.

In your RecyclerView adapter, you should have an ArrayList and also one method addItemsToList(items) to add list items to the ArrayList. Then you can add list items by call adapter.addItemsToList(items) dynamically. After all your list items added to the ArrayList then you can call adapter.notifyDataSetChanged() to display your list.

You can use the notifyDataSetChanged in the adapter for the RecyclerView

The question bears re-reading. The actual question asked is not similar to vendor prefixes in CSS properties, where future-proofing and thinking about vendor support and official standards is appropriate. The actual question asked is more akin to choosing URL query parameter names. Nobody should care what they are. But name-spacing the custom ones is a perfectly valid -- and common, and correct -- thing to do.

Rationale:
It is about conventions among developers for custom, application-specific headers -- "data relevant to their account" -- which have nothing to do with vendors, standards bodies, or protocols to be implemented by third parties, except that the developer in question simply needs to avoid header names that may have other intended use by servers, proxies or clients. For this reason, the "X-Gzip/Gzip" and "X-Forwarded-For/Forwarded-For" examples given are moot. The question posed is about conventions in the context of a private API, akin to URL query parameter naming conventions. It's a matter of preference and name-spacing; concerns about "X-ClientDataFoo" being supported by any proxy or vendor without the "X" are clearly misplaced.

There's nothing special or magical about the "X-" prefix, but it helps to make it clear that it is a custom header. In fact, RFC-6648 et al help bolster the case for use of an "X-" prefix, because -- as vendors of HTTP clients and servers abandon the prefix -- your app-specific, private-API, personal-data-passing-mechanism is becoming even better-insulated against name-space collisions with the small number of official reserved header names. That said, my personal preference and recommendation is to go a step further and do e.g. "X-ACME-ClientDataFoo" (if your widget company is "ACME").

IMHO the IETF spec is insufficiently specific to answer the OP's question, because it fails to distinguish between completely different use cases: (A) vendors introducing new globally-applicable features like "Forwarded-For" on the one hand, vs. (B) app developers passing app-specific strings to/from client and server. The spec only concerns itself with the former, (A). The question here is whether there are conventions for (B). There are. They involve grouping the parameters together alphabetically, and separating them from the many standards-relevant headers of type (A). Using the "X-" or "X-ACME-" prefix is convenient and legitimate for (B), and does not conflict with (A). The more vendors stop using "X-" for (A), the more cleanly-distinct the (B) ones will become.

Example:
Google (who carry a bit of weight in the various standards bodies) are -- as of today, 20141102 in this slight edit to my answer -- currently using "X-Mod-Pagespeed" to indicate the version of their Apache module involved in transforming a given response. Is anyone really suggesting that Google should use "Mod-Pagespeed", without the "X-", and/or ask the IETF to bless its use?

Summary:
If you're using custom HTTP Headers (as a sometimes-appropriate alternative to cookies) within your app to pass data to/from your server, and these headers are, explicitly, NOT intended ever to be used outside the context of your application, name-spacing them with an "X-" or "X-FOO-" prefix is a reasonable, and common, convention.

In Bootstrap 3 it is sufficient to call elt.attr('data-original-title', "Foo") as changes in the "data-original-title" attribute already trigger changes in the tooltip display.

UPDATE: You can add .tooltip('show') to show the changes immediately, you need not to mouseout and mouseover target to see the change in the title

elt.attr('data-original-title', "Foo").tooltip('show');

The best choice would be to use a collection, but if that is out for some reason, use arraycopy. You can use it to copy from and to the same array at a slightly different offset.

For example:

public void removeElement(Object[] arr, int removedIdx) {
    System.arraycopy(arr, removedIdx + 1, arr, removedIdx, arr.length - 1 - removedIdx);
}

Edit in response to comment:

It's not another good way, it's really the only acceptable way--any tools that allow this functionality (like Java.ArrayList or the apache utils) will use this method under the covers. Also, you REALLY should be using ArrayList (or linked list if you delete from the middle a lot) so this shouldn't even be an issue unless you are doing it as homework.

To allocate a collection (creates a new array), then delete an element (which the collection will do using arraycopy) then call toArray on it (creates a SECOND new array) for every delete brings us to the point where it's not an optimizing issue, it's criminally bad programming.

Suppose you had an array taking up, say, 100mb of ram. Now you want to iterate over it and delete 20 elements.

Give it a try...

I know you ASSUME that it's not going to be that big, or that if you were deleting that many at once you'd code it differently, but I've fixed an awful lot of code where someone made assumptions like that.

Is there anything wrong with pure string operations:

url = 'http://stackoverflow.com/questions/9626535/get-domain-name-from-url'
parts = url.split('//', 1)
print parts[0]+'//'+parts[1].split('/', 1)[0]
>>> http://stackoverflow.com

If you prefer having a trailing slash appended, extend this script a bit like so:

parts = url.split('//', 1)
base = parts[0]+'//'+parts[1].split('/', 1)[0]
print base + (len(url) > len(base) and url[len(base)]=='/'and'/' or '')

That can probably be optimized a bit ...

If you know the Start and End index, you can use

String substr=mysourcestring.substring(startIndex,endIndex);

If you want to get substring from specific index till end you can use :

String substr=mysourcestring.substring(startIndex);

If you want to get substring from specific character till end you can use :

String substr=mysourcestring.substring(mysourcestring.indexOf("characterValue"));

If you want to get substring from after a specific character, add that number to .indexOf(char):

String substr=mysourcestring.substring(mysourcestring.indexOf("characterValue") + 1);

This is not dependent on the -- or ++ sign, but it depends on conditions you apply in the loop.

For example: Your loop is faster if the variable has a static value than if your loop check conditions every time, like the length of an array or other conditions.

But don't worry about this optimization, because this time its effect is measured in nanoseconds.

just fixing some small mistakes in Mark Elliot's code:

public class Pair<L,R> {
    private L l;
    private R r;
    public Pair(L l, R r){
        this.l = l;
        this.r = r;
    }
    public L getL(){ return l; }
    public R getR(){ return r; }
    public void setL(L l){ this.l = l; }
    public void setR(R r){ this.r = r; }
}

According to the documentation you can decode JPEG/PNG images.

It should be something like this:

import tensorflow as tf

filenames = ['/image_dir/img.jpg']
filename_queue = tf.train.string_input_producer(filenames)

reader = tf.WholeFileReader()
key, value = reader.read(filename_queue)

images = tf.image.decode_jpeg(value, channels=3)

You can find a bit more info here

There are ways to do this without having to quit the CLI and pipe mongo output to a non-tty.

To save the output from a query with result x we can do the following to directly store the json output to /tmp/x.json:

> EDITOR="cat > /tmp/x.json"
> x = db.MyCollection.find(...).toArray()
> edit x
>

Note that the output isn't strictly Json but rather the dialect that Mongo uses.

Also, you can use exists

select case when exists (select 1 from table) 
          then 'contains rows' 
          else 'doesnt contain rows' 
       end

or to check if there are child rows for a particular record :

select * from Table t1
where exists(
select 1 from ChildTable t2
where t1.id = t2.parentid)

or in a procedure

if exists(select 1 from table)
begin
 -- do stuff
end

If there are too many cookies cached, it breaks the server (the size of a request header is too big!). Clearing the cookies can fix this issue as well.

AndroidX is the open-source project that the Android team uses to develop, test, package, version and release libraries within Jetpack.

AndroidX is a major improvement to the original Android Support Library. Like the Support Library, AndroidX ships separately from the Android OS and provides backward-compatibility across Android releases. AndroidX fully replaces the Support Library by providing feature parity and new libraries.

AndroidX includes the following features:

• All packages in AndroidX live in a consistent namespace starting with the string androidx. The Support Library packages have been mapped into the corresponding androidx.* packages. For a full mapping of all the old classes and build artifacts to the new ones, see the Package Refactoring page.

• Unlike the Support Library, AndroidX packages are separately maintained and updated. The androidx packages use strict Semantic Versioning starting with version 1.0.0. You can update AndroidX libraries in your project independently.

• All new Support Library development will occur in the AndroidX library. This includes maintenance of the original Support Library artifacts and introduction of new Jetpack components.

Using AndroidX

See Migrating to AndroidX to learn how to migrate an existing project.

If you want to use AndroidX in a new project, you need to set the compile SDK to Android 9.0 (API level 28) or higher and set both of the following Android Gradle plugin flags to true in your gradle.properties file.

• android.useAndroidX: When set to true, the Android plugin uses the appropriate AndroidX library instead of a Support Library. The flag is false by default if it is not specified.

• android.enableJetifier: When set to true, the Android plugin automatically migrates existing third-party libraries to use AndroidX by rewriting their binaries. The flag is false by default if it is not specified.

For Artifact mappings see this

<a href="#"><button type="button" class="btn btn-info btn-block regular-link"> <span class="text">Create New Board</span></button></a>

We can use btn-block for automatic responsive.

Create an ouput

<div id="output"></div>

Write to it using JavaScript

var output = document.getElementById("output");
output.innerHTML = "hello world";

If you would like it to handle more complex output values, you can use JSON.stringify

var myObj = {foo: "bar"};
output.innerHTML = JSON.stringify(myObj);

You can pass multiple parameters as "?param1=value1&param2=value2"

But it's not secure. It's vulnerable to Cross Site Scripting (XSS) Attack.

Your parameter can be simply replaced with a script.

Have a look at this article and article

You can make it secure by using API of StringEscapeUtils

static String   escapeHtml(String str) 
          Escapes the characters in a String using HTML entities.

Even using https url for security without above precautions is not a good practice.

Have a look at related SE question:

Is URLEncoder.encode(string, "UTF-8") a poor validation?

Updating on the answer of @Ahmed ALaa

# import msvcrt
import getch

def getPass():
    passwor = ''
    while True:
        x = getch.getch()
        # x = msvcrt.getch().decode("utf-8")
        if x == '\r' or x == '\n':
            break
        print('*', end='', flush=True)
        passwor +=x
    return passwor

print("\nout=", getPass())

msvcrt us only for windows, but getch from PyPI should work for both (I only tested with linux). You can also comment/uncomment the two lines to make it work for windows.

Basically, flush() cleans out your RAM buffer, its real power is that it lets you continue to write to it afterwards - but it shouldn't be thought of as the best/safest write to file feature. It's flushing your RAM for more data to come, that is all. If you want to ensure data gets written to file safely then use close() instead.

I have an open source library that does this very well. It's a four gesture library that comes with an out-of-the-box pan zoom setting. You can find it here: https://bitbucket.org/warwick/hacergestov3 Or you can download the demo app here: https://play.google.com/store/apps/details?id=com.WarwickWestonWright.HacerGestoV3Demo This is a pure canvas library so it can be used in pretty any scenario. Hope this helps.

In Notepad++ you can select few lines and use CTRL+Q which will automaticaly make block comments for selected lines.

Not sure at what version this capability arrived, but you can use something like this to return all the properties of multiple child registry entries in an array:

$InstalledSoftware = Get-ChildItem "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall" | ForEach-Object {Get-ItemProperty "Registry::$_"}

Only adding this as Google brought me here for a relevant reason and I eventually came up with the above one-liner for dredging the registry.

The short answer is no (technically you can give whatever name of the class you want, but this will have no effect, unless you define your own CSS class - and remember - no dots in the class selector). The long answer is again no, because Bootstrap includes a responsive, mobile first fluid grid system that appropriately scales up to 12 columns as the device or view port size increases.

Rows must be placed within a .container (fixed-width) or .container-fluid (full-width) for proper alignment and padding.

• Use rows to create horizontal groups of columns.
• Content should be placed within columns, and only columns may be immediate children of rows.
• Predefined grid classes like .row and .col-xs-4 are available for quickly making grid layouts. Less mixins can also be used for more semantic layouts.
• Columns create gutters (gaps between column content) via padding. That padding is offset in rows for the first and last column via negative margin on .rows.
• Grid columns are created by specifying the number of twelve available columns you wish to span. For example, three equal columns would use three .col-xs-4.
• If more than 12 columns are placed within a single row, each group of extra columns will, as one unit, wrap onto a new line.
• Grid classes apply to devices with screen widths greater than or equal to the breakpoint sizes, and override grid classes targeted at smaller devices. Therefore, e.g. applying any .col-md-* class to an element will not only affect its styling on medium devices but also on large devices if a .col-lg-* class is not present.

A possible solution to your problem is to define your own CSS class with desired width, let's say .col-half{width:XXXem !important} then add this class to elements you want along with original Bootstrap CSS classes.

Basic usage of .ajax would look something like this:

HTML:

<form id="foo">
    <label for="bar">A bar</label>
    <input id="bar" name="bar" type="text" value="" />

    <input type="submit" value="Send" />
</form>

jQuery:

// Variable to hold request
var request;

// Bind to the submit event of our form
$("#foo").submit(function(event){

    // Prevent default posting of form - put here to work in case of errors
    event.preventDefault();

    // Abort any pending request
    if (request) {
        request.abort();
    }
    // setup some local variables
    var $form = $(this);

    // Let's select and cache all the fields
    var $inputs = $form.find("input, select, button, textarea");

    // Serialize the data in the form
    var serializedData = $form.serialize();

    // Let's disable the inputs for the duration of the Ajax request.
    // Note: we disable elements AFTER the form data has been serialized.
    // Disabled form elements will not be serialized.
    $inputs.prop("disabled", true);

    // Fire off the request to /form.php
    request = $.ajax({
        url: "/form.php",
        type: "post",
        data: serializedData
    });

    // Callback handler that will be called on success
    request.done(function (response, textStatus, jqXHR){
        // Log a message to the console
        console.log("Hooray, it worked!");
    });

    // Callback handler that will be called on failure
    request.fail(function (jqXHR, textStatus, errorThrown){
        // Log the error to the console
        console.error(
            "The following error occurred: "+
            textStatus, errorThrown
        );
    });

    // Callback handler that will be called regardless
    // if the request failed or succeeded
    request.always(function () {
        // Reenable the inputs
        $inputs.prop("disabled", false);
    });

});

Note: Since jQuery 1.8, .success(), .error() and .complete() are deprecated in favor of .done(), .fail() and .always().

Note: Remember that the above snippet has to be done after DOM ready, so you should put it inside a $(document).ready() handler (or use the $() shorthand).

Tip: You can chain the callback handlers like this: $.ajax().done().fail().always();

PHP (that is, form.php):

// You can access the values posted by jQuery.ajax
// through the global variable $_POST, like this:
$bar = isset($_POST['bar']) ? $_POST['bar'] : null;

Note: Always sanitize posted data, to prevent injections and other malicious code.

You could also use the shorthand .post in place of .ajax in the above JavaScript code:

$.post('/form.php', serializedData, function(response) {
    // Log the response to the console
    console.log("Response: "+response);
});

Note: The above JavaScript code is made to work with jQuery 1.8 and later, but it should work with previous versions down to jQuery 1.5.

For only one line, you need

...
<View android:id="@+id/primerdivisor"
android:layout_height="2dp"
android:layout_width="fill_parent"
android:background="#ffffff" /> 
...

Anything that is static is in the class level. You don't have to create instance to access static fields/method. Static variable will be created once when class is loaded.

Instance variables are the variable associated with the object which means that instance variables are created for each object you create. All objects will have separate copy of instance variable for themselves.

In your case, when you declared it as static final, that is only one copy of variable. If you change it from multiple instance, the same variable would be updated (however, you have final variable so it cannot be updated).

In second case, the final int a is also constant , however it is created every time you create an instance of the class where that variable is declared.

Have a look on this Java tutorial for better understanding ,

You can specify the connection timeout within the SQL connection string, when you connect to the database, like so:

"Data Source=localhost;Initial Catalog=database;Connect Timeout=15"

On the server level, use MSSQLMS to view the server properties, and on the Connections page you can specify the default query timeout.

I'm not quite sure that queries keep on running after the client connection has closed. Queries should not take that long either, MSSQL can handle large databases, I've worked with GB's of data on it before. Run a performance profile on the queries, prehaps some well-placed indexes could speed it up, or rewriting the query could too.

Update: According to this list, SQL timeouts happen when waiting for attention acknowledgement from server:

Suppose you execute a command, then the command times out. When this happens the SqlClient driver sends a special 8 byte packet to the server called an attention packet. This tells the server to stop executing the current command. When we send the attention packet, we have to wait for the attention acknowledgement from the server and this can in theory take a long time and time out. You can also send this packet by calling SqlCommand.Cancel on an asynchronous SqlCommand object. This one is a special case where we use a 5 second timeout. In most cases you will never hit this one, the server is usually very responsive to attention packets because these are handled very low in the network layer.

So it seems that after the client connection times out, a signal is sent to the server to cancel the running query too.

Try looking at Double.TryParse() if you are using .NET 1.1/2.0/3.0/3.5/4.0/4.5

That functionality is already built into Notepad++. From the "Edit" menu, select "EOL Conversion" -> "UNIX/OSX Format".

screenshot of the option for even quicker finding (or different language versions)

You can also set the default EOL in notepad++ via "Settings" -> "Preferences" -> "New Document/Default Directory" then select "Unix/OSX" under the Format box.

You can keep the default behaviour (with gutter) and add a class to your CSS stylesheet for tasks like yours:

.no-gutter > [class*='col-'] {
    padding-right:0;
    padding-left:0;
}

And here’s how you can use it in your HTML:

<div class="row no-gutter">
    <div class="col-md-4">
        ...
    </div>
    <div class="col-md-4">
        ...
    </div>
    <div class="col-md-4">
        ...
    </div>
</div>

This example made everything clear for me:
As you can see setSoTimeout prevent the program to hang! It wait for SO_TIMEOUT time! if it does not get any signal it throw exception! It means that time expired!

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketTimeoutException;

public class SocketTest extends Thread {
  private ServerSocket serverSocket;

  public SocketTest() throws IOException {
    serverSocket = new ServerSocket(8008);
    serverSocket.setSoTimeout(10000);
  }

  public void run() {
    while (true) {
      try {
        System.out.println("Waiting for client on port " + serverSocket.getLocalPort() + "...");
        Socket client = serverSocket.accept();

        System.out.println("Just connected to " + client.getRemoteSocketAddress());
        client.close();
      } catch (SocketTimeoutException s) {
        System.out.println("Socket timed out!");
        break;
      } catch (IOException e) {
        e.printStackTrace();
        break;
      }
    }
  }

  public static void main(String[] args) {
    try {
      Thread t = new SocketTest();
      t.start();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
}

For your purpose, there is a default event when the row header is double-clicked. Check the following code,

 private void dgvCustom_RowHeaderMouseDoubleClick(object sender, DataGridViewCellMouseEventArgs e)
 {
      //Your code goes here
 }

There's another reason unserialize() failed because you improperly put serialized data into the database see Official Explanation here. Since serialize() returns binary data and php variables don't care encoding methods, so that putting it into TEXT, VARCHAR() will cause this error.

Solution: store serialized data into BLOB in your table.

If you'd like to have the date in English:

>>> from datetime import datetime
>>> datetime.today().strftime('%A')
'Wednesday'

Read more: https://docs.python.org/2/library/datetime.html#strftime-strptime-behavior

As RocketDonkey suggested, your module itself needs to have some docstrings.

For example, in myModule/__init__.py:

"""
The mod module
"""

You'd also want to generate documentation for each file in myModule/*.py using

pydoc myModule.thefilename

to make sure the generated files match the ones that are referenced from the main module documentation file.

This code works very well

function isUndefined(array, index) {
    return ((String(array[index]) == "undefined") ? "Yes" : "No");
}

You get your browser's language for your button. There's no way to change it programmatically.

Just a small side-note... If you are using this with other scripts, the $ on the last line will cause a conflict. Just replace it with jQuery and you're good.

jQuery(function(){
     jQuery('#showall').click(function(){
           jQuery('.targetDiv').show();
    });
    jQuery('.showSingle').click(function(){
          jQuery('.targetDiv').hide();
          jQuery('#div'+jQuery(this).attr('target')).show();
    });
});

http://jsfiddle.net/XwN2L/4764/

Wouldn't a simple background image for the textarea suffice?

I use it and I'm happy with it, as I have to type much less to make a new header. It worked fine for me in three platforms: Windows, Mac and Linux.

I don't have any performance information but I believe that the difference between #pragma and the include guard will be nothing comparing to the slowness of parsing the C++ grammar. That's the real problem. Try to compile the same number of files and lines with a C# compiler for example, to see the difference.

In the end, using the guard or the pragma, won't matter at all.

<EditText android:layout_height="wrap_content" android:background="@android:color/transparent" android:layout_width="match_parent" 
    android:clickable="false"
     android:focusable="false"
     android:textSize="40dp"
     android:textAlignment="center" 
    android:textStyle="bold"  
    android:textAppearance="@style/Base.Theme.AppCompat.Light.DarkActionBar" 
   android:text="AVIATORS"/>

Removing from an array itself is not simple, as you then have to deal with resizing. This is one of the great advantages of using something like a List<int> instead. It provides Remove/RemoveAt in 2.0, and lots of LINQ extensions for 3.0.

If you can, refactor to use a List<> or similar.

Not sure what you are really after but if you want to print exactly what you have you can do:

Option 1

print(df['Item'].to_csv(index=False))

Sweet
Candy
Chocolate

Option 2

for v in df['Item']:
    print(v)

Sweet
Candy
Chocolate

This might be too late but if you add

 worksheet.Columns.AutoFit();

or

 worksheet.Rows.AutoFit();

it also works.

Thread is a lower-level concept: if you're directly starting a thread, you know it will be a separate thread, rather than executing on the thread pool etc.

Task is more than just an abstraction of "where to run some code" though - it's really just "the promise of a result in the future". So as some different examples:

• Task.Delay doesn't need any actual CPU time; it's just like setting a timer to go off in the future
• A task returned by WebClient.DownloadStringTaskAsync won't take much CPU time locally; it's representing a result which is likely to spend most of its time in network latency or remote work (at the web server)
• A task returned by Task.Run() really is saying "I want you to execute this code separately"; the exact thread on which that code executes depends on a number of factors.

Note that the Task<T> abstraction is pivotal to the async support in C# 5.

In general, I'd recommend that you use the higher level abstraction wherever you can: in modern C# code you should rarely need to explicitly start your own thread.