Try inserting this clearing div before the last </div>

<div style="clear: both; line-height: 0;">&nbsp;</div>

I have a little solution example for that problem.

MyDBContext.cs

 public MyDBContext(DBConnectionType ConnectionType) //: base("ConnMain")
  {
      if(ConnectionType==DBConnectionType.MainConnection)
       {
         this.Database.Connection.ConnectionString = ConfigurationManager.ConnectionStrings["ConnMain"].ConnectionString;
       }
      else if(ConnectionType==DBConnectionType.BackupConnection)
       {
         this.Database.Connection.ConnectionString = ConfigurationManager.ConnectionStrings["ConnBackup"].ConnectionString;
       }
  }

MyClass.cs

public enum DBConnectionType
 {
    MainConnection=0,
    BackupConnection=1
 }

frmMyForm.cs

 MyDBContext db = new MyDBContext(DBConnectionType.MainConnection);
                               //or
//MyDBContext db = new MyDBContext(DBConnectionType.BackupConnection);

A string can be converted to an array of characters by calling the ToCharArray string's method.

var characters = stringValue.ToCharArray();

An object of type string[] is not a string, but an array of strings. You cannot convert an array of strings to an array of characters by just calling a method like ToCharArray. To be more correct there isn't any method in the .NET framework that does this thing. You could however declare an extension method to do this, but this is another discussion.

If your intention is to build an array of the characters that make up the strings you have in your array, you could do so by calling the ToCharArray method on each string of your array.

This is pure JavaScript.

There is nothing special about $. It is just a character that may be used in variable names.

var $ = 1;
var $$ = 2;
alert($ + $$);

jQuery just assigns it's core function to a variable called $. The code you have assigns this to a local variable called self and the results of calling jQuery with this as an argument to a global variable called $self.

It's ugly, dirty, confusing, but $, self and $self are all different variables that happen to have similar names.

Isolation level defines how the changes made to some data repository by one transaction affect other simultaneous concurrent transactions, and also how and when that changed data becomes available to other transactions. When we define a transaction using the Spring framework we are also able to configure in which isolation level that same transaction will be executed.

@Transactional(isolation=Isolation.READ_COMMITTED)
public void someTransactionalMethod(Object obj) {

}

READ_UNCOMMITTED isolation level states that a transaction may read data that is still uncommitted by other transactions.

READ_COMMITTED isolation level states that a transaction can't read data that is not yet committed by other transactions.

REPEATABLE_READ isolation level states that if a transaction reads one record from the database multiple times the result of all those reading operations must always be the same.

SERIALIZABLE isolation level is the most restrictive of all isolation levels. Transactions are executed with locking at all levels (read, range and write locking) so they appear as if they were executed in a serialized way.

Propagation is the ability to decide how the business methods should be encapsulated in both logical or physical transactions.

Spring REQUIRED behavior means that the same transaction will be used if there is an already opened transaction in the current bean method execution context.

REQUIRES_NEW behavior means that a new physical transaction will always be created by the container.

The NESTED behavior makes nested Spring transactions to use the same physical transaction but sets savepoints between nested invocations so inner transactions may also rollback independently of outer transactions.

The MANDATORY behavior states that an existing opened transaction must already exist. If not an exception will be thrown by the container.

The NEVER behavior states that an existing opened transaction must not already exist. If a transaction exists an exception will be thrown by the container.

The NOT_SUPPORTED behavior will execute outside of the scope of any transaction. If an opened transaction already exists it will be paused.

The SUPPORTS behavior will execute in the scope of a transaction if an opened transaction already exists. If there isn't an already opened transaction the method will execute anyway but in a non-transactional way.

When you need padding inside the JPanel generally you add padding with the layout manager you are using. There are cases that you can just expand the border of the JPanel.

Make a new Image

var img = new Image();

Set the src

img.src = your_src

Get the width and the height

//img.width
//img.height

\w\- is probably the best but here just another alternative
Use [:alnum:]

if(!preg_match("/[^[:alnum:]\-_]/",$str)) echo "valid";

demo1 | demo2

Here you will find the simplest possible example of using distutils and setup.py:

https://docs.python.org/2/distutils/introduction.html#distutils-simple-example

This assumes that all your code is in a single file and tells how to package a project containing a single module.

This little function has served me well:

    //goto view:
    //useage -  $scope.gotoView("your/path/here", boolean_open_in_new_window)
    $scope.gotoView = function (st_view, is_newWindow)
    {

        console.log('going to view: ' + '#/' + st_view, $window.location);
        if (is_newWindow)
        {
            $window.open($window.location.origin + $window.location.pathname + '' + '#/' + st_view, '_blank');
        }
        else
        {
            $window.location.hash = '#/' + st_view;
        }


    };

You dont need the full path, just the view you are switching to

The readr package will fix this issue.

install.packages('readr')
library(readr)
readr::read_csv('yourfile.csv')

Cause

Conda and pip install scikit-learn under ~/anaconda3/envs/$ENV/lib/python3.7/site-packages, however Jupyter notebook looks for the package under ~/anaconda3/lib/python3.7/site-packages.

Therefore, even when the environment is specified to conda, it does not work.

conda install -n $ENV scikit-learn # Does not work

Solution

pip 3 install the package under ~/anaconda3/lib/python3.7/site-packages.

Verify

After pip3, in a Jupyter notebook.

import sklearn
sklearn.__file__

~/anaconda3/lib/python3.7/site-packages/sklearn/init.py'

How about using a List instead? For example, ArrayList<integer>

Try mydatagrid.Items.Refresh()

1. The point of using CDN is that it is faster, first of all, because it is a distributed network, but secondly, because the static files are being cached by the browsers and chances are high that, for example, the CDN's jquery library that your site uses had already been downloaded by the user's browser, and therefore the file had been cached, and therefore no unnecessary download is taking place. That being said, it is still a good idea to provide a fallback.

   Now, the point of bootstrap's npm package

   is that it provides bootstrap's javascript file as a module. As has been mentioned above, this makes it possible to require it using browserify, which is the most likely use case and, as I understand it, the main reason for bootstrap being published on npm.

2. How to use it

   Imagine the following project structure:

   project
   |-- node_modules
   |-- public
   |   |-- css
   |   |-- img
   |   |-- js
   |   |-- index.html
   |-- package.json
   
   

In your index.html you can reference both css and js files like this:

<link rel="stylesheet" href="../node_modules/bootstrap/dist/css/bootstrap.min.css">
<script src="../node_modules/bootstrap/dist/js/bootstrap.min.js"></script>

Which is the simplest way, and correct for the .css files. But it is much better to include the bootstrap.js file like this somewhere in your public/js/*.js files:

var bootstrap = require('bootstrap');

And you include this code only in those javascript files where you actually need bootstrap.js. Browserify takes care of including this file for you.

Now, the drawback is that you now have your front-end files as node_modules dependencies, and the node_modules folder is usually not checked in with git. I think this is the most controversial part, with many opinions and solutions.

UPDATE March 2017

Almost two years have passed since I wrote this answer and an update is in place.

Now the generally accepted way is to use a bundler like webpack (or another bundler of choice) to bundle all your assets in a build step.

Firstly, it allows you to use commonjs syntax just like browserify, so to include bootstrap js code in your project you do the same:

const bootstrap = require('bootstrap');

As for the css files, webpack has so called "loaders". They allow you write this in your js code:

require('bootstrap/dist/css/bootstrap.css');

and the css files will be "magically" included in your build. They will be dynamically added as <style /> tags when your app runs, but you can configure webpack to export them as a separate css file. You can read more about that in webpack's documentation.

In conclusion.

1. You should "bundle" your app code with a bundler
2. You shouldn't commit neither node_modules nor the dynamically built files to git. You can add a build script to npm which should be used to deploy files on server. Anyway, this can be done in different ways depending on your preferred build process.

In my case it was resolved by changing the compileSdkVersion and targetSdkVersion from 26 to 27

If you want to remove the [ or the ], use the expression: "\\[|\\]".

The two backslashes escape the square bracket and the pipe is an "or".

may be to access this folder you need administrative rights.

so you have two options:-

1. root your device and than try to access this folder
2. use emulator

p.s. : if you are using any of above two options you can access this folder by following these steps

open DDMS perspective -> your device ->(Select File Explorer from right window options) select package -> data -> data -> package name ->files

and from there you can pull up your file

After I updated my MySql, I was getting the same error message. It turned out that after installing a different version on MySql, inside the my.ini, the port was different. Previous MySql version had port 3306 but the new one have port 3308. Check your MySql my.ini, if it is different use the port from .ini in your connection.

The default constructor initializes the string to the empty string. This is the more economic way of saying the same thing.

However, the comparison to NULL stinks. That is an older syntax still in common use that means something else; a null pointer. It means that there is no string around.

If you want to check whether a string (that does exist) is empty, use the empty method instead:

if (myStr.empty()) ...

InetAddress is not always return correct value. It is successful in case of Local Host but for other hosts this shows that the host is unreachable. Try using ping command as given below.

try {
    String cmd = "cmd /C ping -n 1 " + ip + " | find \"TTL\"";        
    Process myProcess = Runtime.getRuntime().exec(cmd);
    myProcess.waitFor();

    if(myProcess.exitValue() == 0) {

    return true;
    }
    else {
        return false;
    }
}
catch (Exception e) {
    e.printStackTrace();
    return false;
}

You can do it like this:

In your main view controller:

func showModal() {
    let modalViewController = ModalViewController()
    modalViewController.modalPresentationStyle = .overCurrentContext
    presentViewController(modalViewController, animated: true, completion: nil)
}

In your modal view controller:

class ModalViewController: UIViewController {
    override func viewDidLoad() {
        view.backgroundColor = UIColor.clearColor()
        view.opaque = false
    }
}

If you are working with a storyboard:

Just add a Storyboard Segue with Kind set to Present Modally to your modal view controller and on this view controller set the following values:

• Background = Clear Color
• Drawing = Uncheck the Opaque checkbox
• Presentation = Over Current Context

As Crashalot pointed out in his comment: Make sure the segue only uses Default for both Presentation and Transition. Using Current Context for Presentation makes the modal turn black instead of remaining transparent.

This below code will remove the complete object element from the array, where the phone number is '+1786543589455'

db.collection.update(
  { _id: id },
  { $pull: { 'contact': { number: '+1786543589455' } } }
);

As has been suggested at least twice, you can use descendingIterator with a Deque, in particular with a LinkedList. If you want to use the for-each loop (i.e., have an Iterable), you can construct and use a wraper like this:

import java.util.*;

public class Main {

    public static class ReverseIterating<T> implements Iterable<T> {
        private final LinkedList<T> list;

        public ReverseIterating(LinkedList<T> list) {
            this.list = list;
        }

        @Override
        public Iterator<T> iterator() {
            return list.descendingIterator();
        }
    }

    public static void main(String... args) {
        LinkedList<String> list = new LinkedList<String>();
        list.add("A");
        list.add("B");
        list.add("C");
        list.add("D");
        list.add("E");

        for (String s : new ReverseIterating<String>(list)) {
            System.out.println(s);
        }
    }
}

By default require() is not a valid function in client side javascript. I recommend you look into require.js as this does extend the client side to provide you with that function.

Yes if you want to stream live video you can use RTSP protoco this will allow you to create a video file, which can be play while creating, both operation will work simultaneously. RTSP-Client-Server

parent() method returns the direct parent element of the selected one. This method only traverse a single level up the DOM tree.

parents() method allows us to search through the ancestors of these elements in the DOM tree. Begin from given selector and move up.

The **.parents()** and **.parent()** methods are almost similar, except that the latter only travels a single level up the DOM tree. Also, **$( "html" ).parent()** method returns a set containing document whereas **$( "html" ).parents()** returns an empty set.

[closest()][3]method returns the first ancestor of the selected element.An ancestor is a parent, grandparent, great-grandparent, and so on.

This method traverse upwards from the current element, all the way up to the document's root element (<html>), to find the first ancestor of DOM elements.

According to docs:

**closest()** method is similar to **parents()**, in that they both traverse up the DOM tree. The differences are as follows:

**closest()**

Begins with the current element
Travels up the DOM tree and returns the first (single) ancestor that matches the passed expression
The returned jQuery object contains zero or one element

**parents()**

Begins with the parent element
Travels up the DOM tree and returns all ancestors that matches the passed expression
The returned jQuery object contains zero or more than one element





 

I guess the easy way would be to calculate the minimum and maximum of the data you have, then calculate L = max - min. Then you divide L by the desired bin width (I'm assuming this is what you mean by bin size) and use the ceiling of this value as the number of bins.

I did this way:

Add OnKeyboardVisibilityListener interface.

public interface OnKeyboardVisibilityListener {
    void onVisibilityChanged(boolean visible);
}

HomeActivity.java:

public class HomeActivity extends Activity implements OnKeyboardVisibilityListener {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sign_up);
    // Other stuff...
    setKeyboardVisibilityListener(this);
}

private void setKeyboardVisibilityListener(final OnKeyboardVisibilityListener onKeyboardVisibilityListener) {
    final View parentView = ((ViewGroup) findViewById(android.R.id.content)).getChildAt(0);
    parentView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {

        private boolean alreadyOpen;
        private final int defaultKeyboardHeightDP = 100;
        private final int EstimatedKeyboardDP = defaultKeyboardHeightDP + (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ? 48 : 0);
        private final Rect rect = new Rect();

        @Override
        public void onGlobalLayout() {
            int estimatedKeyboardHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, EstimatedKeyboardDP, parentView.getResources().getDisplayMetrics());
            parentView.getWindowVisibleDisplayFrame(rect);
            int heightDiff = parentView.getRootView().getHeight() - (rect.bottom - rect.top);
            boolean isShown = heightDiff >= estimatedKeyboardHeight;

            if (isShown == alreadyOpen) {
                Log.i("Keyboard state", "Ignoring global layout change...");
                return;
            }
            alreadyOpen = isShown;
            onKeyboardVisibilityListener.onVisibilityChanged(isShown);
        }
    });
}


@Override
public void onVisibilityChanged(boolean visible) {
    Toast.makeText(HomeActivity.this, visible ? "Keyboard is active" : "Keyboard is Inactive", Toast.LENGTH_SHORT).show();
  }
}

Hope this would help you.

In addition to the solution you accepted, you could also implement the special __lt__() ("less than") method on the class. The sort() method (and the sorted() function) will then be able to compare the objects, and thereby sort them. This works best when you will only ever sort them on this attribute, however.

class Foo(object):

     def __init__(self, score):
         self.score = score

     def __lt__(self, other):
         return self.score < other.score

l = [Foo(3), Foo(1), Foo(2)]
l.sort()

Take a look at Twitter's:

http://twitter.com/crossdomain.xml

<?xml version="1.0" encoding="UTF-8"?>
<cross-domain-policy xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://www.adobe.com/xml/schemas/PolicyFile.xsd">
    <allow-access-from domain="twitter.com" />
    <allow-access-from domain="api.twitter.com" />
    <allow-access-from domain="search.twitter.com" />
    <allow-access-from domain="static.twitter.com" />
    <site-control permitted-cross-domain-policies="master-only"/>
    <allow-http-request-headers-from domain="*.twitter.com" headers="*" secure="true"/>
</cross-domain-policy>

Similar to Arnav Rao's, but with a different parent:

    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>

    <item name="toolbarStyle">@style/MyToolbar</item>
</style>

<style name="MyToolbar" parent="ThemeOverlay.AppCompat.Dark.ActionBar">
    <item name="android:background">#ff0000</item>
</style>

With this approach, the appearance of the Toolbar is entirely defined in the app styles, so you don't need to place any styling on each toolbar.

I am unsure if the author originally was just asking whether or not this allows duplicate values or if there was an implied question here asking, "How to allow duplicate NULL values while using UNIQUE?" Or "How to only allow one UNIQUE NULL value?"

The question has already been answered, yes you can have duplicate NULL values while using the UNIQUE index.

Since I stumbled upon this answer while searching for "how to allow one UNIQUE NULL value." For anyone else who may stumble upon this question while doing the same, the rest of my answer is for you...

In MySQL you can not have one UNIQUE NULL value, however you can have one UNIQUE empty value by inserting with the value of an empty string.

Warning: Numeric and types other than string may default to 0 or another default value.

To answer the original question: yes, you can access the index value of a row in apply(). It is available under the key name and requires that you specify axis=1 (because the lambda processes the columns of a row and not the rows of a column).

Working example (pandas 0.23.4):

>>> import pandas as pd
>>> df = pd.DataFrame([[1,2,3],[4,5,6]], columns=['a','b','c'])
>>> df.set_index('a', inplace=True)
>>> df
   b  c
a      
1  2  3
4  5  6
>>> df['index_x10'] = df.apply(lambda row: 10*row.name, axis=1)
>>> df
   b  c  index_x10
a                 
1  2  3         10
4  5  6         40

Let's say you create a database table for a registration system.

IF OBJECT_ID('dbo.registration_demo', 'U') IS NOT NULL 
  DROP TABLE dbo.registration_demo; 

CREATE TABLE dbo.registration_demo (
    id INT IDENTITY PRIMARY KEY,
    name NVARCHAR(8)
);

Now a couple people register.

INSERT INTO dbo.registration_demo (name) VALUES
    ('John'),('Jane'),('Jeff');

Then you realize you need a timestamp for when they registered.

If this app is limited to a geographically localized region, then you can use the local server time with GETDATE(). Otherwise you should heed Tanner's consideration for the global audience with GETUTCDATE() for the default value.

Add the column with a default value in one statement like this answer.

ALTER TABLE dbo.registration_demo
ADD time_registered DATETIME DEFAULT GETUTCDATE();

Let's get another registrant and see what the data looks like.

INSERT INTO dbo.registration_demo (name) VALUES
    ('Julia');

SELECT * FROM dbo.registration_demo;

id    name    time_registered
1     John    NULL
2     Jane    NULL
3     Jeff    NULL
4     Julia   2016-06-21 14:32:57.767

Your test:

if (numberSet.length < 2) {
    return 0;
}

should be done before you allocate an array of that length in the below statement:

int[] differenceArray = new int[numberSet.length-1];

else you are already creating an array of size -1, when the numberSet.length = 0. That is quite odd. So, move your if statement as the first statement in your method.

As csgillespie said. stringsAsFactors is default on TRUE, which converts any text to a factor. So even after deleting the text, you still have a factor in your dataframe.

Now regarding the conversion, there's a more optimal way to do so. So I put it here as a reference :

> x <- factor(sample(4:8,10,replace=T))
> x
 [1] 6 4 8 6 7 6 8 5 8 4
Levels: 4 5 6 7 8
> as.numeric(levels(x))[x]
 [1] 6 4 8 6 7 6 8 5 8 4

To show it works.

The timings :

> x <- factor(sample(4:8,500000,replace=T))
> system.time(as.numeric(as.character(x)))
   user  system elapsed 
   0.11    0.00    0.11 
> system.time(as.numeric(levels(x))[x])
   user  system elapsed 
      0       0       0 

It's a big improvement, but not always a bottleneck. It gets important however if you have a big dataframe and a lot of columns to convert.

Java oneliners, no fancy library.

// 6 characters padding example
String pad = "******";
// testcases for 0, 4, 8 characters
String input = "" | "abcd" | "abcdefgh"

Pad Left, don't limit

result = pad.substring(Math.min(input.length(),pad.length())) + input;
results: "******" | "**abcd" | "abcdefgh"

Pad Right, don't limit

result = input + pad.substring(Math.min(input.length(),pad.length()));
results: "******" | "abcd**" | "abcdefgh"

Pad Left, limit to pad length

result = (pad + input).substring(input.length(), input.length() + pad.length());
results: "******" | "**abcd" | "cdefgh"

Pad Right, limit to pad length

result = (input + pad).substring(0, pad.length());
results: "******" | "abcd**" | "abcdef"

You are comparing the addresses instead of the values.

check this one out.

<input type="text" name="firstname">
<input type="text" name="lastname">
<input type="text" name="email">
<input type="text" name="address">

<input type="text" name="tree[tree1][fruit]">
<input type="text" name="tree[tree1][height]">

<input type="text" name="tree[tree2][fruit]">
<input type="text" name="tree[tree2][height]">

<input type="text" name="tree[tree3][fruit]">
<input type="text" name="tree[tree3][height]">

it should end up like this in the $_POST[] array (PHP format for easy visualization)

$_POST[] = array(
    'firstname'=>'value',
    'lastname'=>'value',
    'email'=>'value',
    'address'=>'value',
    'tree' => array(
        'tree1'=>array(
            'fruit'=>'value',
            'height'=>'value'
        ),
        'tree2'=>array(
            'fruit'=>'value',
            'height'=>'value'
        ),
        'tree3'=>array(
            'fruit'=>'value',
            'height'=>'value'
        )
    )
)

Probably the browser first downloaded the validade script and then jQuery. If the validade script be downloaded before loading jQuery you'll get an error. You can see this using a tool like firebug.

Try this:

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script>
    function LoadValidade() {
        var a = false;
        try {
            var teste = $('*');
            if(teste == null)
                throw 1;
        } catch (e) { 
            a = true; 
        }

        if (a){ 
            setTimeout(LoadValidade, 300);
            return;
        }

        var validadeScript = document.createElement("script");
        validadeScript.src = "../common/jquery.validate.js";
        $('head')[0].appendChild(validadeScript);
    } 
    setTimeout(LoadValidade, 300);
</script>

To use the Like Button and have the Open Graph inspect your website, you need an application.

So you need to associate the Like Button with a fb:app_id

If you want other users to see the administration page for your website on Facebook you add fb:admins. So if you are the developer of the application and the website owner there is no need to add fb:admins

There is a trusted answer on the Wordpress website:

Where's my .htaccess file?

WordPress's index.php and .htaccess files should be together in the directory indicated by the Site address (URL) setting on your General Options page. Since the name of the file begins with a dot, the file may not be visible through an FTP client unless you change the preferences of the FTP tool to show all files, including the hidden files. Some hosts (e.g. Godaddy) may not show or allow you to edit .htaccess if you install WordPress through the Godaddy Hosting Connection installation.

Creating and editing (.htaccess)

If you do not already have a .htaccess file, create one. If you have shell or ssh access to the server, a simple touch .htaccess command will create the file. If you are using FTP to transfer files, create a file on your local computer, call it 1.htaccess, upload it to the root of your WordPress folder, and then rename it to .htaccess.

You can edit the .htaccess file by FTP, shell, or (possibly) your host's control panel.

The following permalink rewrite code should be included in your .htaccess file (since WordPress 3.0):

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

*Taken from here.

you can do it simply as below:

 public static int[] getRGB(final String rgb)
{
    final int[] ret = new int[3];
    for (int i = 0; i < 3; i++)
    {
        ret[i] = Integer.parseInt(rgb.substring(i * 2, i * 2 + 2), 16);
    }
    return ret;
}

For Example

getRGB("444444") = 68,68,68   
getRGB("FFFFFF") = 255,255,255

I found the below snippet helpful. Taken from: http://jeromeblog-jerome.blogspot.com/2007/10/how-to-unlock-record-on-oracle.html

select
owner||'.'||object_name obj ,
oracle_username||' ('||s.status||')' oruser ,
os_user_name osuser ,
machine computer ,
l.process unix ,
s.sid||','||s.serial# ss ,
r.name rs ,
to_char(s.logon_time,'yyyy/mm/dd hh24:mi:ss') time
from v$locked_object l ,
dba_objects o ,
v$session s ,
v$transaction t ,
v$rollname r
where l.object_id = o.object_id
and s.sid=l.session_id
and s.taddr=t.addr
and t.xidusn=r.usn
order by osuser, ss, obj
;

Then ran:

Alter System Kill Session '<value from ss above>'
;

To kill individual sessions.

I think I just ran into a similar issue where I was trying to center a login box (like the gmail login box). When resizing the window, the center box would overflow out of the browser window (top) as soon as the browser window became smaller than the box. Because of this, in a small window, even when scrolling up, the top content was lost.

I was able to fix this by replacing the centering method I used by the "margin: auto" way of centering the box in its container. This prevents the box from overflowing in my case, keeping all content available. (minimum margin seems to be 0).

Good Luck !

edit: margin: auto only works to vertically center something if the parent element has its display property set to "flex".

In my case, I had "mybranch" checked out, and had done git pull, so I couldn't figure out why the push wasn't working. Eventually, I realized that I was pushing the wrong branch. I was typing git push origin master instead of git push origin mybranch.

So if you've already done git pull and still getting this message, make sure you're pushing the correct branch.

$ declare -a arr
$ arr=("a")
$ arr=("${arr[@]}" "new")
$ echo ${arr[@]}
a new
$ arr=("${arr[@]}" "newest")
$ echo ${arr[@]}
a new newest

The following worked for me:

ForceCursor = true;
Cursor = Cursors.Wait;

is this use of typedef super common/rare/never seen in the code you work with?

I have never seen this particular pattern in the C++ code I work with, but that doesn't mean it's not out there.

is this use of typedef super Ok (i.e. do you see strong or not so strong reasons to not use it)?

It doesn't allow for multiple inheritance (cleanly, anyway).

should "super" be a good thing, should it be somewhat standardized in C++, or is this use through a typedef enough already?

For the above cited reason (multiple inheritance), no. The reason why you see "super" in the other languages you listed is that they only support single inheritance, so there is no confusion as to what "super" is referring to. Granted, in those languages it IS useful but it doesn't really have a place in the C++ data model.

Oh, and FYI: C++/CLI supports this concept in the form of the "__super" keyword. Please note, though, that C++/CLI doesn't support multiple inheritance either.

You can use:

jQuery('[name="' + nameAttributeValue + '"]');

this will be an inefficient way to select elements though, so it would be best to also use the tag name or restrict the search to a specific element:

jQuery('div[name="' + nameAttributeValue + '"]'); // with tag name
jQuery('div[name="' + nameAttributeValue + '"]',
     document.getElementById('searcharea'));      // with a search base

Are there best practices with regards to the organisation of packages in Java and what goes in them?

Not really no. There are lots of ideas, and lots opinions, but real "best practice" is to use your common sense!

(Please read No best Practices for a perspective on "best practices" and the people who promote them.)

However, there is one principal that probably has broad acceptance. Your package structure should reflect your application's (informal) module structure, and you should aim to minimize (or ideally entirely avoid) any cyclic dependencies between modules.

(Cyclic dependencies between classes in a package / module are just fine, but inter-package cycles tend to make it hard understand your application's architecture, and can be a barrier to code reuse. In particular, if you use Maven you will find that cyclic inter-package / inter-module dependencies mean that the whole interconnected mess has to be one Maven artifact.)

I should also add that there is one widely accepted best practice for package names. And that is that your package names should start with your organization's domain name in reverse order. If you follow this rule, you reduce the likelihood of problems caused by your (full) class names clashing with other peoples'.

def n_arr(n, default=0, size=1):
    if n is 0:
        return default

    return [n_arr(n-1, default, size) for _ in range(size)]

arr = n_arr(3, 42, 3)
assert arr[2][2][2], 42

If the image size is variable or the design is responsive, in addition to wrapping the text, you can set a min width for the paragraph to avoid it to become too narrow.
Give an invisible CSS pseudo-element with the desired minimum paragraph width. If there isn't enough space to fit this pseudo-element, then it will be pushed down underneath the image, taking the paragraph with it.

#container:before {
  content: ' ';
  display: table;
  width: 10em;    /* Min width required */
}
#floated{
    float: left;
    width: 150px;
    background: red;
}

Check Base64 or normal string

public bool IsBase64Encoded(String str)

{

try

{
    // If no exception is caught, then it is possibly a base64 encoded string
    byte[] data = Convert.FromBase64String(str);
    // The part that checks if the string was properly padded to the
    // correct length was borrowed from d@anish's solution
    return (str.Replace(" ","").Length % 4 == 0);
}
catch
{
    // If exception is caught, then it is not a base64 encoded string
   return false;
}

}

This does not strictly answer the original question but some people have mentioned that with session.autoflush = True you don't have to use session.flush()... And this is not always true.

If you want to use the id of a newly created object in the middle of a transaction, you must call session.flush().

# Given a model with at least this id
class AModel(Base):
   id = Column(Integer, primary_key=True)  # autoincrement by default on integer primary key

session.autoflush = True

a = AModel()
session.add(a)
a.id  # None
session.flush()
a.id  # autoincremented integer

This is because autoflush does NOT auto fill the id (although a query of the object will, which sometimes can cause confusion as in "why this works here but not there?" But snapshoe already covered this part).

One related aspect that seems pretty important to me and wasn't really mentioned:

Why would you not commit all the time? - The answer is atomicity.

A fancy word to say: an ensemble of operations have to all be executed successfully OR none of them will take effect.

For example, if you want to create/update/delete some object (A) and then create/update/delete another (B), but if (B) fails you want to revert (A). This means those 2 operations are atomic.

Therefore, if (B) needs a result of (A), you want to call flush after (A) and commit after (B).

Also, if session.autoflush is True, except for the case that I mentioned above or others in Jimbo's answer, you will not need to call flush manually.

Intellij 2021.3.2 Basic Shortcuts

Shortcuts Image

$(".price").each(function(){ 
total_price += parseFloat($(this).val()); 
}); 

please try like this...

Assuming:

1. You have 2's-complement representations in mind; and,
2. By (unsigned long) you mean unsigned 32-bit integer,

then you just need to add 2**32 (or 1 << 32) to the negative value.

For example, apply this to -1:

>>> -1
-1
>>> _ + 2**32
4294967295L
>>> bin(_)
'0b11111111111111111111111111111111'

Assumption #1 means you want -1 to be viewed as a solid string of 1 bits, and assumption #2 means you want 32 of them.

Nobody but you can say what your hidden assumptions are, though. If, for example, you have 1's-complement representations in mind, then you need to apply the ~ prefix operator instead. Python integers work hard to give the illusion of using an infinitely wide 2's complement representation (like regular 2's complement, but with an infinite number of "sign bits").

And to duplicate what the platform C compiler does, you can use the ctypes module:

>>> import ctypes
>>> ctypes.c_ulong(-1)  # stuff Python's -1 into a C unsigned long
c_ulong(4294967295L)
>>> _.value
4294967295L

C's unsigned long happens to be 4 bytes on the box that ran this sample.

You can bind listeners to one common functions -

$(window).bind("load resize scroll",function(e){
  // do stuff
});

Or another way -

$(window).bind({
     load:function(){

     },
     resize:function(){

     },
     scroll:function(){

    }
});

Alternatively, instead of using .bind() you can use .on() as bind directly maps to on(). And maybe .bind() won't be there in future jquery versions.

$(window).on({
     load:function(){

     },
     resize:function(){

     },
     scroll:function(){

    }
});

let firstname = "paresh"
let lastname = "hirpara"
let itsme = "\(firstname) \(lastname)"

I always use the tag. It is a simple compile-time flag to catch little mistakes that I might make.

It will catch things like tostring() instead of toString()

The little things help in large projects.

You may interest in using php's inbuilt function realpath(). and passing a constant DIR

for example: $TargetDirectory = realpath(__DIR__."/../.."); //Will take you 2 folder's back

String realpath() :: Returns canonicalized absolute pathname ..

I don't think http-builder is a Groovy module, but rather an external API on top of apache http-client so you do need to import classes and download a bunch of APIs. You are better using Gradle or @Grab to download the jar and dependencies:

@Grab(group='org.codehaus.groovy.modules.http-builder', module='http-builder', version='0.7.1' )
import groovyx.net.http.*
import static groovyx.net.http.ContentType.*
import static groovyx.net.http.Method.*

Note: since the CodeHaus site went down, you can find the JAR at (https://mvnrepository.com/artifact/org.codehaus.groovy.modules.http-builder/http-builder)

The article previously mentioned is good. http://forums.oracle.com/forums/thread.jspa?threadID=191750 (as far as it goes)

If this is not something that runs frequently (don't do it on your home page), you can turn off connection pooling.

There is one other "gotcha" that is not mentioned in the article. If the first thing you try to do with the connection is call a stored procedure, ODP will HANG!!!! You will not get back an error condition to manage, just a full bore HANG! The only way to fix it is to turn OFF connection pooling. Once we did that, all issues went away.

Pooling is good in some situations, but at the cost of increased complexity around the first statement of every connection.

If the error handling approach is so good, why don't they make it an option for ODP to handle it for us????

num1 = num2 = 5

If you are using arrow functions:

it('should do something', async () => {
  // do your testing
}).timeout(15000)

 File f1 = new File("..\\..\\..\\config.properties");  

this path trying to access file is in Project directory then just access file like this.

File f=new File("filename.txt");

if your file is in OtherSources/Resources

this.getClass().getClassLoader().getResource("relative path");//-> relative path from resources folder

In my case for a wcf rest services project I had to add a runtime section to the web.config where there the requested dll was:

  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="DotNetOpenAuth.Core" publicKeyToken="2780ccd10d57b246" />
        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
      </dependentAssembly>
.
.
.
  <runtime>

Make a bat file with the following in it:

copy /y C:\temp\log1k.txt C:\temp\log1k_copied.txt

However, I think there are issues if there are spaces in your directory names. Notice this was copied to the same directory, but that doesn't matter. If you want to see how it runs, make another bat file that calls the first and outputs to a log:

C:\temp\test.bat > C:\temp\test.log

(assuming the first bat file was called test.bat and was located in that directory)

Your pattern is fine. But you shouldn't be split()ting it away, you should find() it. Following code gives the output you are looking for:

String str = "ZZZZL <%= dsn %> AFFF <%= AFG %>";
Pattern pattern = Pattern.compile("<%=(.*?)%>", Pattern.DOTALL);
Matcher matcher = pattern.matcher(str);
while (matcher.find()) {
    System.out.println(matcher.group(1));
}

There's a distinction to me that scp is always encrypted with ssh (secure shell), while rsync isn't necessarily encrypted. More specifically, rsync doesn't perform any encryption by itself; it's still capable of using other mechanisms (ssh for example) to perform encryption.

In addition to security, encryption also has a major impact on your transfer speed, as well as the CPU overhead. (My experience is that rsync can be significantly faster than scp.)

Check out this post for when rsync has encryption on.

Even though this is an old post, I thought it would be helpful to mention an additional (partial and tangential) solution to this question on top of the very helpful workarounds that are already present in this thread.

At the time of writing (6 January 2021), GitHub has released a feature to upload .mp4 and .mov files up to 10 MB in size to issues, pull requests and discussion comments (as shared here). This is a direct embed, instead of "linking" it to external URLs as what we usually do. It is already out of public beta. You can attach files by dragging and dropping, selecting or pasting them. A preview of GitHub's new notice can be seen here:

Perhaps, in the future, we can slowly nudge GitHub to eventually extend this native feature to READMEs as well.

I had the same error as described by title, but for me it was simply installing Microsoft access 12.0 oledb redistributable to use with LinqToExcel.

Compare is unnecessary, Days / TotalDays are unnecessary.

All you need is

if (expireDate < DateTime.Now) {
    // has expired
} else {
    // not expired
}

note this will work if you decide to use minutes or months or even years as your expiry criteria.

You can create a wrapper function that takes in a promise and returns an array with data if no error and the error if there was an error.

function safePromise(promise) {
  return promise.then(data => [ data ]).catch(error => [ null, error ]);
}

Use it like this in ES7 and in an async function:

async function checkItem() {
  const [ item, error ] = await safePromise(getItem(id));
  if (error) { return null; } // handle error and return
  return item; // no error so safe to use item
}

Try using TestContext.WriteLine() which outputs text in test results.

Example:

[TestClass]
public class UnitTest1
{
    private TestContext testContextInstance;

    /// <summary>
    /// Gets or sets the test context which provides
    /// information about and functionality for the current test run.
    /// </summary>
    public TestContext TestContext
    {
        get { return testContextInstance; }
        set { testContextInstance = value; }
    }

    [TestMethod]
    public void TestMethod1()
    {
        TestContext.WriteLine("Message...");
    }
}

The "magic" is described in MSDN:

To use TestContext, create a member and property within your test class [...] The test framework automatically sets the property, which you can then use in unit tests.

Here is the example directly from PEP 8 on limiting line length:

class Rectangle(Blob):

    def __init__(self, width, height,
                 color='black', emphasis=None, highlight=0):
        if (width == 0 and height == 0 and
                color == 'red' and emphasis == 'strong' or
                highlight > 100):
            raise ValueError("sorry, you lose")
        if width == 0 and height == 0 and (color == 'red' or
                                           emphasis is None):
            raise ValueError("I don't think so -- values are %s, %s" %
                             (width, height))
        Blob.__init__(self, width, height,
                      color, emphasis, highlight)

I think there is only one intuitive solution and it is:

int[] someArray = {1,2,3,4,5};
int first = someArray[0];
int last = someArray[someArray.length - 1];
System.out.println("First: " + first + "\n" + "Last: " + last);

Output:

First: 1
Last: 5

What are -moz- and -webkit-?

CSS properties starting with -webkit-, -moz-, -ms- or -o- are called vendor prefixes.

Why do different browsers add different prefixes for the same effect?

A good explanation of vendor prefixes comes from Peter-Paul Koch of QuirksMode:

Originally, the point of vendor prefixes was to allow browser makers to start supporting experimental CSS declarations.

Let's say a W3C working group is discussing a grid declaration (which, incidentally, wouldn't be such a bad idea). Let's furthermore say that some people create a draft specification, but others disagree with some of the details. As we know, this process may take ages.

Let's furthermore say that Microsoft as an experiment decides to implement the proposed grid. At this point in time, Microsoft cannot be certain that the specification will not change. Therefore, instead of adding the grid to its CSS, it adds -ms-grid.

The vendor prefix kind of says "this is the Microsoft interpretation of an ongoing proposal." Thus, if the final definition of the grid is different, Microsoft can add a new CSS property grid without breaking pages that depend on -ms-grid.

UPDATE AS OF THE YEAR 2016

As this post 3 years old, it's important to mention that now most vendors do understand that these prefixes are just creating un-necessary duplicate code and that the situation where you need to specify 3 different CSS rules to get one effect working in all browser is an unwanted one.

As mentioned in this glossary about Mozilla's view on Vendor Prefix on May 3, 2016,

Browser vendors are now trying to get rid of vendor prefix for experimental features. They noticed that Web developers were using them on production Web sites, polluting the global space and making it more difficult for underdogs to perform well.

For example, just a few years ago, to set a rounded corner on a box you had to write:

-moz-border-radius: 10px 5px;
-webkit-border-top-left-radius: 10px;
-webkit-border-top-right-radius: 5px;
-webkit-border-bottom-right-radius: 10px;
-webkit-border-bottom-left-radius: 5px;
border-radius: 10px 5px;

But now that browsers have come to fully support this feature, you really only need the standardized version:

border-radius: 10px 5px;

Finding the right rules for all browsers

As still there's no standard for common CSS rules that work on all browsers, you can use tools like caniuse.com to check support of a rule across all major browsers.

You can also use pleeease.io/play. Pleeease is a Node.js application that easily processes your CSS. It simplifies the use of preprocessors and combines them with best postprocessors. It helps create clean stylesheets, support older browsers and offers better maintainability.

Input:

a {
  column-count: 3;
  column-gap: 10px;
  column-fill: auto;
}

Output:

a {
  -webkit-column-count: 3;
     -moz-column-count: 3;
          column-count: 3;
  -webkit-column-gap: 10px;
     -moz-column-gap: 10px;
          column-gap: 10px;
  -webkit-column-fill: auto;
     -moz-column-fill: auto;
          column-fill: auto;
}

DECLARE @LastChangeDate as date 
SET @LastChangeDate = GETDATE() 

SO thread 'Multiply two arrays element wise, where one of the arrays has arrays as elements' has an example of constructing an array from arrays. If the subarrays are the same size, numpy makes a 2d array. But if they differ in length, it makes an array with dtype=object, and the subarrays retain their identity.

Following that, you could do something like this:

In [5]: result=np.array([np.zeros((1)),np.zeros((2))])

In [6]: result
Out[6]: array([array([ 0.]), array([ 0.,  0.])], dtype=object)

In [7]: np.append([result[0]],[1,2])
Out[7]: array([ 0.,  1.,  2.])

In [8]: result[0]
Out[8]: array([ 0.])

In [9]: result[0]=np.append([result[0]],[1,2])

In [10]: result
Out[10]: array([array([ 0.,  1.,  2.]), array([ 0.,  0.])], dtype=object)

However, I don't offhand see what advantages this has over a pure Python list or lists. It does not work like a 2d array. For example I have to use result[0][1], not result[0,1]. If the subarrays are all the same length, I have to use np.array(result.tolist()) to produce a 2d array.

You guessed right MySQL have limitation for size of data, you need to break your query in small group of records or you can Change your max_allowed_packet by using SET GLOBAL max_allowed_packet=524288000;

Google introduced In-app updates lib, (https://developer.android.com/guide/app-bundle/in-app-updates) it works on Lollipop+ and gives you the ability to ask the user for an update with a nice dialog (FLEXIBLE) or with mandatory full-screen message (IMMEDIATE).

You need to implement the latter. Here is how it will look like:

I covered all the code in this answer: https://stackoverflow.com/a/56808529/5502121

<?php

$array = array(11 => 14,
               10 => 9,
               12 => 7,
               13 => 7,
               14 => 4,
               15 => 6);

echo array_search(max($array), $array);

?>

array_search() return values:

Returns the key for needle if it is found in the array, FALSE otherwise.

If needle is found in haystack more than once, the first matching key is returned. To return the keys for all matching values, use array_keys() with the optional search_value parameter instead.

=$W$4<=TODAY()

Returns true for dates up to and including today, false otherwise.

Simply use $(":input")

Example disabling all inputs (textarea, input text, etc):

$(":input").prop("disabled", true);

<form>_x000D_
  <textarea>Tetarea</textarea>_x000D_
  <input type="text" value="Text">_x000D_
  <label><input type="checkbox"> Checkbox</label>_x000D_
</form>_x000D_
_x000D_
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>

Not the first example using a deque, but a simpler one. This one is general: it works on any iterable object, not just a file.

#!/usr/bin/env python
import sys
import collections
def tail(iterable, N):
    deq = collections.deque()
    for thing in iterable:
        if len(deq) >= N:
            deq.popleft()
        deq.append(thing)
    for thing in deq:
        yield thing
if __name__ == '__main__':
    for line in tail(sys.stdin,10):
        sys.stdout.write(line)

You could also use a RewriteRule if you wanted the ability to template match and redirect urls.

Yes the set of instructions above are outdated. For the new GitHub the Settings button must be clicked.

Also the person you try to add as a collaborator must have an existing GitHub account. In other words he should have signed up on GitHub first because it is not possible to send collaboration requests merely by typing in the email address of the collaborator.

Here's the working code. Works in desktop and mobile browsers. hope it helps. thanks for everyone responding.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>Test Layout</title>
        <style type="text/css">
            body, html
            {
                margin: 0; padding: 0; height: 100%; overflow: hidden;
            }

            #content
            {
                position:absolute; left: 0; right: 0; bottom: 0; top: 0px; 
            }
        </style>
    </head>
    <body>
        <div id="content">
            <iframe width="100%" height="100%" frameborder="0" src="http://cnn.com" />
        </div>
    </body>
</html>

I just wrote this function, it should do the trick for you, but it does left join

public function mergePerKey($array1,$array2)
    {
        $mergedArray = [];

        foreach ($array1 as $key => $value) 
        {
            if(isset($array2[$key]))
             {
               $mergedArray[$value] = null;

               continue;
             }
            $mergedArray[$value] = $array2[$key];
        }

        return $mergedArray;
    }

You can overload the String prototype with a removePrefix function:

String.prototype.removePrefix = function (prefix) {
    const hasPrefix = this.indexOf(prefix) === 0;
    return hasPrefix ? this.substr(prefix.length) : this.toString();
};

usage:

const domain = "www.test.com".removePrefix("www."); // test.com

For python3 is:

sudo apt-get install -y python3-setuptools

//Representation of table
<div class="search-table-outter">
<table class="table table-responsive search-table inner">
</table>
</div>

//Css to make Horizontal Dropdown

<style>

    .search-table{table-layout: auto; margin:40px auto 0px auto; }
    .search-table, td, th {
        border-collapse: collapse;
    }
th{padding:20px 7px; font-size:15px; color:#444;}
td{padding:5px 10px; height:35px;}
    .search-table-outter { overflow-x: scroll; }
th, td { min-width: 200px; }


</style>

Minor update in @Joran's code.
Using the code below, you can avoid the ambiguity and only get the unique of two columns:

dat <- data.frame(id=c(1,1,3), id2=c(1,1,4) ,somevalue=c("x","y","z"))    
dat[row.names(unique(dat[,c("id", "id2")])), c("id", "id2")]

It's simple-

SELECT empname,
       empid,
       (SELECT COUNT (profileid)
          FROM profile
         WHERE profile.empid = employee.empid)
           AS number_of_profiles
  FROM employee;

It is even simpler when you use a table join like this:

  SELECT e.empname, e.empid, COUNT (p.profileid) AS number_of_profiles
    FROM employee e LEFT JOIN profile p ON e.empid = p.empid
GROUP BY e.empname, e.empid;

Explanation for the subquery:

Essentially, a subquery in a select gets a scalar value and passes it to the main query. A subquery in select is not allowed to pass more than one row and more than one column, which is a restriction. Here, we are passing a count to the main query, which, as we know, would always be only a number- a scalar value. If a value is not found, the subquery returns null to the main query. Moreover, a subquery can access columns from the from clause of the main query, as shown in my query where employee.empid is passed from the outer query to the inner query.

Edit:

When you use a subquery in a select clause, Oracle essentially treats it as a left join (you can see this in the explain plan for your query), with the cardinality of the rows being just one on the right for every row in the left.

Explanation for the left join

A left join is very handy, especially when you want to replace the select subquery due to its restrictions. There are no restrictions here on the number of rows of the tables in either side of the LEFT JOIN keyword.

For more information read Oracle Docs on subqueries and left join or left outer join.

Inside your component class:

checkValue(event: any) {
  this.userForm.patchValue({
    state: event
  })
}

Now in controls you have value A or B

Best for every complex types

str1 = "sg-23.0 300sdf343fc  -34rrf-3.4r" #All kinds of occurrence of numbers between strings
num = [float(s) for s in re.findall(r'-?\d+\.?\d*', str1)]
print(num)

Output:

[-23.0, 300.0, 343.0, -34.0, -3.4]

SQL

SQL is used to communicate with a database, it is the standard language for relational database management systems.

In detail Structured Query Language is a special-purpose programming language designed for managing data held in a relational database management system (RDBMS), or for stream processing in a relational data stream management system (RDSMS).

Originally based upon relational algebra and tuple relational calculus, SQL consists of a data definition language and a data manipulation language. The scope of SQL includes data insert, query, update and delete, schema creation and modification, and data access control. Although SQL is often described as, and to a great extent is, a declarative language (4GL), it also includes procedural elements.

PL/SQL

PL/SQL is a combination of SQL along with the procedural features of programming languages. It was developed by Oracle Corporation

Specialities of PL/SQL

• completely portable, high-performance transaction-processing language.
• provides a built-in interpreted and OS independent programming environment.
• directly be called from the command-line SQL*Plus interface.
• Direct call can also be made from external programming language calls to database.
• general syntax is based on that of ADA and Pascal programming language.
• Apart from Oracle, it is available in TimesTen in-memory database and IBM DB2.

T-SQL

Short for Transaction-SQL, an extended form of SQL that adds declared variables, transaction control, error and exceptionhandling and row processing to SQL

The Structured Query Language or SQL is a programming language that focuses on managing relational databases. SQL has its own limitations which spurred the software giant Microsoft to build on top of SQL with their own extensions to enhance the functionality of SQL. Microsoft added code to SQL and called it Transact-SQL or T-SQL. Keep in mind that T-SQL is proprietary and is under the control of Microsoft while SQL, although developed by IBM, is already an open format.

T-SQL adds a number of features that are not available in SQL.

This includes procedural programming elements and a local variable to provide more flexible control of how the application flows. A number of functions were also added to T-SQL to make it more powerful; functions for mathematical operations, string operations, date and time processing, and the like. These additions make T-SQL comply with the Turing completeness test, a test that determines the universality of a computing language. SQL is not Turing complete and is very limited in the scope of what it can do.

Another significant difference between T-SQL and SQL is the changes done to the DELETE and UPDATE commands that are already available in SQL. With T-SQL, the DELETE and UPDATE commands both allow the inclusion of a FROM clause which allows the use of JOINs. This simplifies the filtering of records to easily pick out the entries that match a certain criteria unlike with SQL where it can be a bit more complicated.

Choosing between T-SQL and SQL is all up to the user. Still, using T-SQL is still better when you are dealing with Microsoft SQL Server installations. This is because T-SQL is also from Microsoft, and using the two together maximizes compatibility. SQL is preferred by people who have multiple backends.

References , Wikipedea , Tutorial Points :www.differencebetween.com

If you're running a single node cluster for some reason, you might simply need to do avoid replicas, like this:

curl -XPUT -H 'Content-Type: application/json' 'localhost:9200/_settings' -d '
{
    "index" : {
        "number_of_replicas" : 0
    }
}'

Doing this you'll force to use es without replicas

To create a popup you'll need the following script:

<script language="javascript" type="text/javascript">

function popitup(url) {
newwindow=window.open(url,'name','height=200,width=150');
if (window.focus) {newwindow.focus()}
return false;
}


</script>

Then, you link to it by:

  <a href="popupex.html" onclick="return popitup('popupex.html')">Link to popup</a>

If you want you can call the function directly from document.ready also. Or maybe from another function.

If I understand you correctly, you have a utf-8 encoded byte-string in your code.

Converting a byte-string to a unicode string is known as decoding (unicode -> byte-string is encoding).

You do that by using the unicode function or the decode method. Either:

unicodestr = unicode(bytestr, encoding)
unicodestr = unicode(bytestr, "utf-8")

Or:

unicodestr = bytestr.decode(encoding)
unicodestr = bytestr.decode("utf-8")

You should group by the field you want the SUM apply to, and not include in SELECT any field other than multiple rows values, like COUNT, SUM, AVE, etc, because if you include Bill field like in this case, only the first value in the set of rows will be displayed, being almost meaningless and confusing.

This will return the sum of bills per account number:

SELECT SUM(Bill) FROM Table1 GROUP BY AccountNumber

You could add more clauses like WHERE, ORDER BY etc as needed.

Thanks for the info, think I see the problem. This is a bug in hive-go that only shows up when you add a host. The last lines of it are:

app.listen(3001);
console.log("... port %d in %s mode", app.address().port, app.settings.env);

When you add the host on the first line, it is crashing when it calls app.address().port.

The problem is the potentially asynchronous nature of .listen(). Really it should be doing that console.log call inside a callback passed to listen. When you add the host, it tries to do a DNS lookup, which is async. So when that line tries to fetch the address, there isn't one yet because the DNS request is running, so it crashes.

Try this:

app.listen(3001, 'localhost', function() {
  console.log("... port %d in %s mode", app.address().port, app.settings.env);
});

Try this demo please: http://jsfiddle.net/sgpw2/

Thanks Jan for spaces \s rest there is some good detail in this link:

http://www.jquery4u.com/syntax/jquery-basic-regex-selector-examples/#.UHKS5UIihlI

Hope it fits your need :)

code

 $(function() {

    $("#field").bind("keyup", function(event) {
        var regex = /^[a-zA-Z\s]+$/;
        if (regex.test($("#field").val())) {
            $('.validation').html('valid');
        } else {
            $('.validation').html("FAIL regex");
        }
    });
});?

In my case, I had to pool database for payment confirmation to come in and then update WPF UI.

Mechanism that spins up all the processes:

public void Execute(object parameter)
        {
            try
            {
                var url = string.Format("{0}New?transactionReference={1}", Settings.Default.PaymentUrlWebsite, "transactionRef");
                Process.Start(new ProcessStartInfo(url));
                ViewModel.UpdateUiWhenDoneWithPayment = new BackgroundWorker {WorkerSupportsCancellation = true};
                ViewModel.UpdateUiWhenDoneWithPayment.DoWork += ViewModel.updateUiWhenDoneWithPayment_DoWork;
                ViewModel.UpdateUiWhenDoneWithPayment.RunWorkerCompleted += ViewModel.updateUiWhenDoneWithPayment_RunWorkerCompleted;
                ViewModel.UpdateUiWhenDoneWithPayment.RunWorkerAsync();
            }
            catch (Exception e)
            {
                ViewModel.Log.Error("Failed to navigate to payments", e);
                MessageBox.Show("Failed to navigate to payments");
            }
        }

Mechanism that does checking for completion:

 private void updateUiWhenDoneWithPayment_DoWork(object sender, DoWorkEventArgs e)
    {
        Thread.Sleep(30000);
        while (string.IsNullOrEmpty(GetAuthToken()) && !((BackgroundWorker)sender).CancellationPending)
        {
            Thread.Sleep(5000);
        }

        //Plug in pooling mechanism
        this.AuthCode = GetAuthToken();
    }

Mechanism that cancels if window gets closed:

private void PaymentView_OnUnloaded(object sender, RoutedEventArgs e)
    {
        var context = DataContext as PaymentViewModel;
        if (context.UpdateUiWhenDoneWithPayment != null && context.UpdateUiWhenDoneWithPayment.WorkerSupportsCancellation && context.UpdateUiWhenDoneWithPayment.IsBusy)
            context.UpdateUiWhenDoneWithPayment.CancelAsync();
    }

Not sure if anyone else will find this helpful, but I encountered the same error and searched all over for any anonymous users...and there weren't any. The problem ended up being that the user account was set to "Require SSL" - which I found in PHPMyAdmin by going to User Accounts and clicking on Edit Privileges for the user. As soon as I unchecked this option, everything worked as expected!

SELECT field1, 
       field2,
       'example' AS newfield
FROM TABLE1

This will add a column called "newfield" to the output, and its value will always be "example".

In my case: I forgot to activate virtualenv

I installed "pip install example" in the wrong virtualenv

I would recommend identifying the functionality you need from any subclasses, and make a generic method to cast into the right subclass.

I had this same problem, but really didn't feel like creating some mapping class or importing a library.

Let's say you need the 'Authenticate' method to take behavior from the right subclass. In your NetworkClient:

protected bool Authenticate(string username, string password) {
  //...
}
protected bool DoAuthenticate<T>(NetworkClient nc, string username, string password) where T : NetworkClient {
//Do a cast into the sub class.
  T subInst = (T) nc;
  return nc.Authenticate(username, password);
}

Before I start, please let me emphasize that the size of the file must be checked on the server side. If not checked on server side, malicious users can override your client side limits, and upload huge files to your server. DO NOT TRUST THE USERS.

I played a bit with PHP's MAX_FILE_SIZE, it seemed to work only after the file was uploaded, which makes it irrelevant (again, malicious user can override it quite easily).

The javascript code below (tested in Firefox and Chrome), based on Matthew's post, will warn the user (the good, innocent one) a priori to uploading a large file, saving both traffic and the user's time:

<form method="post" enctype="multipart/form-data" 
onsubmit="return checkSize(2097152)">    
<input type="file" id="upload" />
<input type="submit" />

<script type="text/javascript">
function checkSize(max_img_size)
{
    var input = document.getElementById("upload");
    // check for browser support (may need to be modified)
    if(input.files && input.files.length == 1)
    {           
        if (input.files[0].size > max_img_size) 
        {
            alert("The file must be less than " + (max_img_size/1024/1024) + "MB");
            return false;
        }
    }

    return true;
}
</script>

There is no way to know unless the particular company reveals the info. The best you can do is find a few companies that are sharing and then extrapolate based on app ranking (which is available publicly). The best you'll get is a ball park estimate.

Below are the options:

echo $this->Registration->id;

echo $this->Registration->getInsertID();

echo $this->Registration->getLastInsertId();

Here, you can replace Registration with your model name.

Thanks

I came here looking for an answer to the Title question "MySQL - Auto Increment after delete" but I could only find an answer for that in the questions

• How to delete certain row from mysql table?
• How to reset AUTO_INCREMENT in MySQL?

By using something like:

DELETE FROM table;
ALTER TABLE table AUTO_INCREMENT = 1;

Note that Darin Dimitrov's answer explain really well AUTO_INCREMENT and it's usage. Take a look there before doing something you might regret.

PS: The question itself is more "Why you need to recycle key values?" and Dolph's answer cover that.

Guava's ComparisonChain:

Collections.sort(list, new Comparator<ActiveAlarm>(){
            @Override
            public int compare(ActiveAlarm a1, ActiveAlarm a2) {
                 return ComparisonChain.start()
                       .compare(a1.timestarted, a2.timestarted)
                       //...
                       .compare(a1.timeEnded, a1.timeEnded).result();
            }});

Found the simple official way after wading through the walls of text above that would make you think there is none.

Create a complete bundle with:

$ git bundle create <filename> --all

Restore it with:

$ git clone <filename> <folder>

This operation is atomic AFAIK. Check official docs for the gritty details.

Regarding "zip": git bundles are compressed and surprisingly small compared to the .git folder size.

The for-in statement is really there to enumerate over object properties, which is how it is implemented in TypeScript. There are some issues with using it on arrays.

I can't speak on behalf of the TypeScript team, but I believe this is the reason for the implementation in the language.

Something went wrong with your GCC installation. Try reinstalling the it like this:

sudo apt-get install --reinstall g++-5

In Ubuntu the g++ is a dependency package that installs the default version of g++ for your OS version. So simply removing and installing the package again won't work, cause it will install the default version. That's why you need to reinstall.

Note: You can replace the g++-5 with your desired g++ version. To find your current g++ version run this:

g++ --version

I found one good thing about using bind is that you get to know the trigger event: something like: "You clicked with event = [ButtonPress event state=Mod1 num=1 x=43 y=20]" due to the code below:

self.submit.bind('<Button-1>', self.parse)
def parse(self, trigger_event):
        print("You clicked with event = {}".format(trigger_event))

Comparing the following two ways of coding a button click:

btn = Button(root, text="Click me to submit", command=(lambda: reply(ent.get())))
btn = Button(root, text="Click me to submit")
btn.bind('<Button-1>', (lambda event: reply(ent.get(), e=event)))
def reply(name, e = None):
    messagebox.showinfo(title="Reply", message = "Hello {0}!\nevent = {1}".format(name, e))

The first one is using the command function which doesn't take an argument, so no event pass-in is possible. The second one is a bind function which can take an event pass-in and print something like "Hello Charles! event = [ButtonPress event state=Mod1 num=1 x=68 y=12]"

We can left click, middle click or right click a mouse which corresponds to the event number of 1, 2 and 3, respectively. Code:

btn = Button(root, text="Click me to submit")
buttonClicks = ["<Button-1>", "<Button-2>", "<Button-3>"]
for bc in buttonClicks:
    btn.bind(bc, lambda e : print("Button clicked with event = {}".format(e.num)))

Output:

Button clicked with event = 1
Button clicked with event = 2
Button clicked with event = 3

ALTERNATE WAY:

Click Developer Tools to inspect element. You may also use keyboard shortcuts, such as CtrlL+Shift+I, F12 (or Fn+F12), etc.

Although @dunedin15's fantastic answer has served me well on a number of occasions, it can give inaccurate results for some edge-cases, such as when debugging build settings of a static lib for an Archive build.

As an alternative, a Run Script Build Phase can be easily added to any target to “Log Build Settings” when it's built:

To add, (with the target in question selected) under the Build Phases tab-section click the little ? button a dozen-or-so pixels up-left-ward from the Target Dependencies section, and set the shell to /bin/bash and the command to export.  You'll also probably want to drag the phase upwards so that it happens just after Target Dependencies and before Copy Headers or Compile Sources.  Renaming the phase from “Run Script” to “Log Build Settings” isn't a bad idea.

The result is this incredibly helpful listing of current environment variables used for building:

You could take the average buffer gets per execution during a period of activity of the instance:

SELECT username,
       buffer_gets,
       disk_reads,
       executions,
       buffer_get_per_exec,
       parse_calls,
       sorts,
       rows_processed,
       hit_ratio,
       module,
       sql_text
       -- elapsed_time, cpu_time, user_io_wait_time, ,
  FROM (SELECT sql_text,
               b.username,
               a.disk_reads,
               a.buffer_gets,
               trunc(a.buffer_gets / a.executions) buffer_get_per_exec,
               a.parse_calls,
               a.sorts,
               a.executions,
               a.rows_processed,
               100 - ROUND (100 * a.disk_reads / a.buffer_gets, 2) hit_ratio,
               module
               -- cpu_time, elapsed_time, user_io_wait_time
          FROM v$sqlarea a, dba_users b
         WHERE a.parsing_user_id = b.user_id
           AND b.username NOT IN ('SYS', 'SYSTEM', 'RMAN','SYSMAN')
           AND a.buffer_gets > 10000
         ORDER BY buffer_get_per_exec DESC)
 WHERE ROWNUM <= 20

This creates backup files. E.g. sed -i -e 's/hello/hello world/' testfile for me, creates a backup file, testfile-e, in the same dir.

As far as I'm aware, you can't declare custom fonts in xml or themes. I usually just make custom classes extending textview that set their own font on instantiation and use those in my layout xml files.

ie:

public class Museo500TextView extends TextView {
    public Museo500TextView(Context context, AttributeSet attrs) {
        super(context, attrs);      
        this.setTypeface(Typeface.createFromAsset(context.getAssets(), "path/to/font.ttf"));
    }
}

and

<my.package.views.Museo900TextView
        android:id="@+id/dialog_error_text_header"
        android:layout_width="190dp"
        android:layout_height="wrap_content"
        android:gravity="center_horizontal"
        android:textSize="12sp" />

Create a file named filesize.cmd (and put into folder C:\Windows\System32):

@echo %~z1

The answer given by Jeremy Ruten is great, but I think it's not exactly what Paul Wicks was searching for. If I understand correctly Paul asked about expression to match non-english words like können or móc. Jeremy's regex matches only non-english letters, so there's need for small improvement:

([^\x00-\x7F]|\w)+

or

([^\u0000-\u007F]|\w)+

This [^\x00-\x7F] and this [^\u0000-\u007F] parts allow regullar expression to match non-english letters.

This (|) is logical or and \w is english letter, so ([^\u0000-\u007F]|\w) will match single english or non-english letter.

+ at the end of the expression means it could be repeated, so the whole expression allows all english or non-english letters to match.

Here you can test the first expression with various strings and here is the second.

public class NumberFormatExceptionExample {
private static final String str = "123.234";
public static void main(String[] args){
float i = Float.valueOf(str); //Float.parseFloat(str);
System.out.println("Value parsed :"+i);
}
}

This should resolve the problem.

Can anyone suggest how should we handle this when the string comes in 35,000.00

You need to make two case labels.

Control will fall through from the first label to the second, so they'll both execute the same code.

TL;DR

Markdown doesn't support color but you can inline HTML inside Markdown, e.g.:

<span style="color:blue">some *blue* text</span>.

Longer answer

As the original/official syntax rules state (emphasis added):

Markdown’s syntax is intended for one purpose: to be used as a format for writing for the web.

Markdown is not a replacement for HTML, or even close to it. Its syntax is very small, corresponding only to a very small subset of HTML tags. The idea is not to create a syntax that makes it easier to insert HTML tags. In my opinion, HTML tags are already easy to insert. The idea for Markdown is to make it easy to read, write, and edit prose. HTML is a publishing format; Markdown is a writing format. Thus, Markdown’s formatting syntax only addresses issues that can be conveyed in plain text.

For any markup that is not covered by Markdown’s syntax, you simply use HTML itself.

As it is not a "publishing format," providing a way to color your text is out-of-scope for Markdown. That said, it is not impossible as you can include raw HTML (and HTML is a publishing format). For example, the following Markdown text (as suggested by @scoa in a comment):

Some Markdown text with <span style="color:blue">some *blue* text</span>.

Would result in the following HTML:

<p>Some Markdown text with <span style="color:blue">some <em>blue</em> text</span>.</p>

Now, StackOverflow (and probably GitHub) will strip the raw HTML out (as a security measure) so you lose the color here, but it should work on any standard Markdown implementation.

Another possibility is to use the non-standard Attribute Lists originally introduced by the Markuru implementation of Markdown and later adopted by a few others (there may be more, or slightly different implementations of the same idea, like div and span attributes in pandoc). In that case, you could assign a class to a paragraph or inline element, and then use CSS to define a color for a class. However, you absolutely must be using one of the few implementations which actually support the non-standard feature and your documents are no longer portable to other systems.

I found this line worked best for one of my Windows Server 2008 R2 servers. A couple of others had no issues without this line in my PowerShell scripts:

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Force -Scope Process

The question is how to call a C function from Python, if I understood correctly. Then the best bet are Ctypes (BTW portable across all variants of Python).

>>> from ctypes import *
>>> libc = cdll.msvcrt
>>> print libc.time(None)
1438069008
>>> printf = libc.printf
>>> printf("Hello, %s\n", "World!")
Hello, World!
14
>>> printf("%d bottles of beer\n", 42)
42 bottles of beer
19

For a detailed guide you may want to refer to my blog article.

There are MYSQL functions you can use. Like this one that resolves the user:

SELECT USER();

This will return something like root@localhost so you get the host and the user.

To get the current database run this statement:

SELECT DATABASE();

Other useful functions can be found here: http://dev.mysql.com/doc/refman/5.0/en/information-functions.html

Add this to the beginning of your file:

Set WshShell = WScript.CreateObject("WScript.Shell")
If WScript.Arguments.Length = 0 Then
  Set ObjShell = CreateObject("Shell.Application")
  ObjShell.ShellExecute "wscript.exe" _
    , """" & WScript.ScriptFullName & """ RunAsAdministrator", , "runas", 1
  WScript.Quit
End if

In the "database" section of the logon dialog box, enter //hostname.domain:port/database, in your case //123.45.67.89:1521/TEST - this assumes that you don't want to set up a tnsnames.ora file/entry for some reason.

Also make sure the firewall settings on your server are not blocking port 1521.

You can use $last variable within ng-repeat directive. Take a look at doc.

You can do it like this:

 <div ng-repeat="file in files" ng-class="computeCssClass($last)">
 {{file.name}}
 </div>

Where computeCssClass is function of controller which takes sole argument and returns 'last' or null.

Or

  <div ng-repeat="file in files" ng-class="{'last':$last}">
  {{file.name}}
  </div>

OK I was able to solve this myself:

$(document).ready(function() {
  $('#tid_css').DataTable({
    "iDisplayLength": 100,
    "bFilter": false,
    "aaSorting": [
      [2, "desc"]
    ],
    "fnRowCallback": function(nRow, aData, iDisplayIndex, iDisplayIndexFull) {
      if (aData[2] == "5") {
        $('td', nRow).css('background-color', 'Red');
      } else if (aData[2] == "4") {
        $('td', nRow).css('background-color', 'Orange');
      }
    }
  });
})

Simply, this should do the task:

import pandas as pd

grouped_df = df1.groupby( [ "Name", "City"] )

pd.DataFrame(grouped_df.size().reset_index(name = "Group_Count"))

Here, grouped_df.size() pulls up the unique groupby count, and reset_index() method resets the name of the column you want it to be. Finally, the pandas Dataframe() function is called upon to create a DataFrame object.

Window / Show Device Bezels

And now you can see the real device, so double tap on HOME button and kill you app

For example:

sqlplus -s admin/password << EOF
whenever sqlerror exit sql.sqlcode;
set echo off 
set heading off

@pl_script_1.sql
@pl_script_2.sql

exit;
EOF

I have seen exactly the same error, also with IE11. In my case the issue occurred when user clicked <button> element, which was inside <form> tags.

The issue was remedied, by placing the <button> outside of <form> tags.

You should really read Wikipedia for in-depth understanding. In short, Cloud computing means you develop/run your software remotely on remote platform. This can be either using remote virtual infrastructure (amazon EC2), remote platform (google app engine), or remote application (force.com or gmail.com).

Grid computing means using many physical hardwares to do computations (in the broad sense) as if it was a single hardware. This means that you can run your application on several distinct machines at the same time.

not very accurate but enough to get you started.

In PostGIS Geometry is preferred over Geography (round earth model) because the computations are much simpler therefore faster. It also has MANY more available functions but is less accurate over very long distances.

Import your CSV long and lat fields to DECIMAL(10,6) columns. 6 digits is 10cm precision, should be plenty for most use cases. Then cast your imported data to the correct SRID

The wrong way!

/* try what seems the obvious solution */
DROP TABLE IF EXISTS public.test_geom_bad;
-- Big Ben, London
SELECT ST_SetSRID(ST_MakePoint(-0.116773, 51.510357),4326) AS geom
INTO public.test_geom_bad;

The CORRECT way

/* add the necessary CAST to make it work */
DROP TABLE IF EXISTS public.test_geom_correct;
SELECT ST_SetSRID(ST_MakePoint(-0.116773, 51.510357),4326)::geometry(Geometry, 4326) AS geom
INTO public.test_geom_correct;

Verify SRID is not zero!

/* now observe the incorrect SRID 0 */
SELECT * FROM public.geometry_columns
WHERE f_table_name IN ('test_geom_bad','test_geom_correct');

Validate the order of your long lat parameter using a WKT viewer and

SELECT ST_AsEWKT(geom) FROM public.test_geom_correct

Then index it for best performance

CREATE INDEX idx_target_table_geom_gist
    ON target_table USING gist(geom);

Unix will only run commands if they are available on the system path, as you can view by the $PATH variable

echo $PATH

Executables located in directories that are not on the path cannot be run unless you specify their full location. So in your case, assuming the executable is in the current directory you are working with, then you can execute it as such

./my-exec

Where my-exec is the name of your program.

Quick Answer / TL;DR

For the lazy people out there:

Install-Package MagicalUnicornMvcErrorToolkit -Version 1.0

Then remove this line from global.asax

GlobalFilters.Filters.Add(new HandleErrorAttribute());

And this is only for IIS7+ and IIS Express.

If you're using Cassini .. well .. um .. er.. awkward ...

Long, explained answer

I know this has been answered. But the answer is REALLY SIMPLE (cheers to David Fowler and Damian Edwards for really answering this).

There is no need to do anything custom.

For ASP.NET MVC3, all the bits and pieces are there.

Step 1 -> Update your web.config in TWO spots.

<system.web>
    <customErrors mode="On" defaultRedirect="/ServerError">
      <error statusCode="404" redirect="/NotFound" />
    </customErrors>

and

<system.webServer>
    <httpErrors errorMode="Custom">
      <remove statusCode="404" subStatusCode="-1" />
      <error statusCode="404" path="/NotFound" responseMode="ExecuteURL" />
      <remove statusCode="500" subStatusCode="-1" />
      <error statusCode="500" path="/ServerError" responseMode="ExecuteURL" />
    </httpErrors>    

...
<system.webServer>
...
</system.web>

Now take careful note of the ROUTES I've decided to use. You can use anything, but my routes are

• /NotFound <- for a 404 not found, error page.
• /ServerError <- for any other error, include errors that happen in my code. this is a 500 Internal Server Error

See how the first section in <system.web> only has one custom entry? The statusCode="404" entry? I've only listed one status code because all other errors, including the 500 Server Error (ie. those pesky error that happens when your code has a bug and crashes the user's request) .. all the other errors are handled by the setting defaultRedirect="/ServerError" .. which says, if you are not a 404 page not found, then please goto the route /ServerError.

Ok. that's out of the way.. now to my routes listed in global.asax

Step 2 - Creating the routes in Global.asax

Here's my full route section..

public static void RegisterRoutes(RouteCollection routes)
{
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
    routes.IgnoreRoute("{*favicon}", new {favicon = @"(.*/)?favicon.ico(/.*)?"});

    routes.MapRoute(
        "Error - 404",
        "NotFound",
        new { controller = "Error", action = "NotFound" }
        );

    routes.MapRoute(
        "Error - 500",
        "ServerError",
        new { controller = "Error", action = "ServerError"}
        );

    routes.MapRoute(
        "Default", // Route name
        "{controller}/{action}/{id}", // URL with parameters
        new {controller = "Home", action = "Index", id = UrlParameter.Optional}
        );
}

That lists two ignore routes -> axd's and favicons (ooo! bonus ignore route, for you!) Then (and the order is IMPERATIVE HERE), I have my two explicit error handling routes .. followed by any other routes. In this case, the default one. Of course, I have more, but that's special to my web site. Just make sure the error routes are at the top of the list. Order is imperative.

Finally, while we are inside our global.asax file, we do NOT globally register the HandleError attribute. No, no, no sir. Nadda. Nope. Nien. Negative. Noooooooooo...

Remove this line from global.asax

GlobalFilters.Filters.Add(new HandleErrorAttribute());

Step 3 - Create the controller with the action methods

Now .. we add a controller with two action methods ...

public class ErrorController : Controller
{
    public ActionResult NotFound()
    {
        Response.StatusCode = (int)HttpStatusCode.NotFound;
        return View();
    }

    public ActionResult ServerError()
    {
        Response.StatusCode = (int)HttpStatusCode.InternalServerError;

        // Todo: Pass the exception into the view model, which you can make.
        //       That's an exercise, dear reader, for -you-.
        //       In case u want to pass it to the view, if you're admin, etc.
        // if (User.IsAdmin) // <-- I just made that up :) U get the idea...
        // {
        //     var exception = Server.GetLastError();
        //     // etc..
        // }

        return View();
    }

    // Shhh .. secret test method .. ooOOooOooOOOooohhhhhhhh
    public ActionResult ThrowError()
    {
        throw new NotImplementedException("Pew ^ Pew");
    }
}

Ok, lets check this out. First of all, there is NO [HandleError] attribute here. Why? Because the built in ASP.NET framework is already handling errors AND we have specified all the shit we need to do to handle an error :) It's in this method!

Next, I have the two action methods. Nothing tough there. If u wish to show any exception info, then u can use Server.GetLastError() to get that info.

Bonus WTF: Yes, I made a third action method, to test error handling.

Step 4 - Create the Views

And finally, create two views. Put em in the normal view spot, for this controller.

Bonus comments

• You don't need an Application_Error(object sender, EventArgs e)
• The above steps all work 100% perfectly with Elmah. Elmah fraking wroxs!

And that, my friends, should be it.

Now, congrats for reading this much and have a Unicorn as a prize!

A predicate is a function that returns a true/false (i.e. boolean) value, as opposed to a proposition which is a true/false (i.e. boolean) value. In Java, one cannot have standalone functions, and so one creates a predicate by creating an interface for an object that represents a predicate and then one provides a class that implements that interface. An example of an interface for a predicate might be:

public interface Predicate<ARGTYPE>
{
    public boolean evaluate(ARGTYPE arg);
}

And then you might have an implementation such as:

public class Tautology<E> implements Predicate<E>
{
     public boolean evaluate(E arg){
         return true;
     }
}

To get a better conceptual understanding, you might want to read about first-order logic.

Edit
There is a standard Predicate interface (java.util.function.Predicate) defined in the Java API as of Java 8. Prior to Java 8, you may find it convenient to reuse the com.google.common.base.Predicate interface from Guava.

Also, note that as of Java 8, it is much simpler to write predicates by using lambdas. For example, in Java 8 and higher, one can pass p -> true to a function instead of defining a named Tautology subclass like the above.

You could just divide your two numbers and multiply by 100. Note that this will throw an error if "whole" is 0, as asking what percentage of 0 a number is does not make sense:

def percentage(part, whole):
  return 100 * float(part)/float(whole)

Or with a % at the end:

 def percentage(part, whole):
  Percentage = 100 * float(part)/float(whole)
  return str(Percentage) + “%”

Or if the question you wanted it to answer was "what is 5% of 20", rather than "what percentage is 5 of 20" (a different interpretation of the question inspired by Carl Smith's answer), you would write:

def percentage(percent, whole):
  return (percent * whole) / 100.0

You can use is_page($page_id) outside the loop to check.

According to HTML living standard specification, the load event is

Fired at the Window when the document has finished loading; fired at an element containing a resource (e.g. img, embed) when its resource has finished loading

I.e. load event is not fired on document object.

Credit: Why does document.addEventListener(‘load’, handler) not work?

i also remove privileges of root and database not showing in mysql console when i was a root user, so changed user by mysql>mysql -u 'userName' -p; and password;

UPDATE mysql.user SET Grant_priv='Y', Super_priv='Y' WHERE User='root';

FLUSH PRIVILEGES;

after this command it all show database's in root .

Thanks

The Authenticity Token is rails' method to prevent 'cross-site request forgery (CSRF or XSRF) attacks'.

To put it simple, it makes sure that the PUT / POST / DELETE (methods that can modify content) requests to your web app are made from the client's browser and not from a third party (an attacker) that has access to a cookie created on the client side.

The following should do the trick:

div[class^='myclass'], div[class*=' myclass']{
    color: #F00;
}

Edit: Added wildcard (*) as suggested by David

I think requests.head instead of requests.get will be more safe to call when handling url redirect,check the github issue here:

r = requests.head(url, allow_redirects=True)
print(r.url)

If you are doing something like writing HTML and Javascript in a code editor on your personal computer, and testing the output in your browser, you will probably get error messages about Cross Origin Requests. Your browser will render HTML and run Javascript, jQuery, angularJs in your browser without needing a server set up. But many web browsers are programed to watch for cross site attacks, and will block requests. You don't want just anyone being able to read your hard drive from your web browser. You can create a fully functioning web page using Notepad++ that will run Javascript, and frameworks like jQuery and angularJs; and test everything just by using the Notepad++ menu item, RUN, LAUNCH IN FIREFOX. That's a nice, easy way to start creating a web page, but when you start creating anything more than layout, css and simple page navigation, you need a local server set up on your machine.

Here are some options that I use.

1. Test your web page locally on Firefox, then deploy to your host.
2. or: Run a local server

Test on Firefox, Deploy to Host

1. Firefox currently allows Cross Origin Requests from files served from your hard drive
2. Your web hosting site will allow requests to files in folders as configured by the manifest file

Run a Local Server

• Run a server on your computer, like Apache or Python
• Python isn't a server, but it will run a simple server

Run a Local Server with Python

Get your IP address:

• On Windows: Open up the 'Command Prompt'. All Programs, Accessories, Command Prompt
• I always run the Command Prompt as Administrator. Right click the Command Prompt menu item and look for Run As Administrator
• Type the command: ipconfig and hit Enter.
• Look for: IPv4 Address . . . . . . . . 12.123.123.00
• There are websites that will also display your IP address

If you don't have Python, download and install it.

Using the 'Command Prompt' you must go to the folder where the files are that you want to serve as a webpage.

• If you need to get back to the C:\ Root directory - type cd/
• type cd Drive:\Folder\Folder\etc to get to the folder where your .Html file is (or php, etc)
• Check the path. type: path at the command prompt. You must see the path to the folder where python is located. For example, if python is in C:\Python27, then you must see that address in the paths that are listed.
• If the path to the Python directory is not in the path, you must set the path. type: help path and hit Enter. You will see help for path.
• Type something like: path c:\python27 %path%
• %path% keeps all your current paths. You don't want to wipe out all your current paths, just add a new path.
• Create the new path FROM the folder where you want to serve the files.
• Start the Python Server: Type: python -m SimpleHTTPServer port Where 'port' is the number of the port you want, for example python -m SimpleHTTPServer 1337
• If you leave the port empty, it defaults to port 8000
• If the Python server starts successfully, you will see a msg.

Run You Web Application Locally

• Open a browser
• In the address line type: http://your IP address:port
• http://xxx.xxx.x.x:1337 or http://xx.xxx.xxx.xx:8000 for the default
• If the server is working, you will see a list of your files in the browser
• Click the file you want to serve, and it should display.

More advanced solutions

• Install a code editor, web server, and other services that are integrated.

You can install Apache, PHP, Python, SQL, Debuggers etc. all separately on your machine, and then spend lots of time trying to figure out how to make them all work together, or look for a solution that combines all those things.

I like using XAMPP with NetBeans IDE. You can also install WAMP which provides a User Interface for managing and integrating Apache and other services.

<?php
    // Sapan Mohanty
    // Skype:sapan.mohannty
    //***********************************
    $oldData = mysql_connect('localhost', 'DBUSER', 'DBPASS');
    echo mysql_error();
    $NewData = mysql_connect('localhost', 'DBUSER', 'DBPASS');
    echo mysql_error();
    mysql_select_db('OLDDBNAME', $oldData );
    mysql_select_db('NEWDBNAME', $NewData );
    $getAllTablesName    = "SELECT table_name FROM information_schema.tables WHERE table_type = 'base table'";
    $getAllTablesNameExe = mysql_query($getAllTablesName);
    //echo mysql_error();
    while ($dataTableName = mysql_fetch_object($getAllTablesNameExe)) {

        $oldDataCount       = mysql_query('select count(*) as noOfRecord from ' . $dataTableName->table_name, $oldData);
        $oldDataCountResult = mysql_fetch_object($oldDataCount);


        $newDataCount       = mysql_query('select count(*) as noOfRecord from ' . $dataTableName->table_name, $NewData);
        $newDataCountResult = mysql_fetch_object($newDataCount);

        if ( $oldDataCountResult->noOfRecord != $newDataCountResult->noOfRecord ) {
            echo "<br/><b>" . $dataTableName->table_name . "</b>";
            echo " | Old: " . $oldDataCountResult->noOfRecord;
            echo " | New: " . $newDataCountResult->noOfRecord;

            if ($oldDataCountResult->noOfRecord < $newDataCountResult->noOfRecord) {
                echo " | <font color='green'>*</font>";

            } else {
                echo " | <font color='red'>*</font>";
            }

            echo "<br/>----------------------------------------";

        }     

    }
    ?>

I suppose your html page is hosted on a different port. Same origin policy requires in most browsers that the loaded file be on the same port than the loading file.

Delete your "body background image code" then paste this code:

html { 
    background: url(../img/background.jpg) no-repeat center center fixed #000; 
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

I updated my package and even reinstalled it - but I was still getting the exact same error as the OP mentioned. I manually edited the referenced dll by doing the following.

I removed the newtonsoft.json.dll from my reference, then manually deleted the .dll from the bin directoy. Then i manually copied the newtonsoft.json.dll from the nuget package folder into the project bin, then added the reference by browsing to the .dll file.

Now my project builds again.

Turn the C Macro into a C# static method in a class.

I had a similar problem. GET requests worked and their (empty) request bodies got written to the the log file. POST requests failed with a 404. Experimenting a bit, I found that all POST requests were failing. I found a forum posting asking about POST requests and the solution there worked for me. That solution? Add a proxy_header line right before the proxy_pass line, exactly like the one in the example below.

server {
    listen       192.168.0.1:45080;
    server_name  foo.example.org;

    access_log  /path/to/log/nginx/post_bodies.log post_bodies;
    location / {
      ### add the following proxy_header line to get POSTs to work
      proxy_set_header Host $http_host;
      proxy_pass   http://10.1.2.3;
    }
}

(This is with nginx 1.2.1 for what it is worth.)

As a workaround, I've been using this:

# Fix Python 2.x.
try:
    UNICODE_EXISTS = bool(type(unicode))
except NameError:
    unicode = lambda s: str(s)

Update: In an effort to answer my own question, here is what I've been able to uncover so far. If anyone else out there has something, I'd still be interested to find out more.

• http://knockoutjs.com/documentation/plugins-mapping.html ;; knockoutjs.com nice
• http://jsonviewer.arianv.com/ ;; Cute minimal one that works offline
• http://www.alkemis.com/jsonEditor.htm ; this one looks pretty nice
• http://www.thomasfrank.se/json_editor.html
• http://www.decafbad.com/2005/07/map-test/tree2.html Outline editor, not really JSON
• http://json.bubblemix.net/ Visualise JSON structute, edit inline and export back to prettified JSON.
• http://jsoneditoronline.org/ Example added by StackOverflow thread participant. Source: https://github.com/josdejong/jsoneditor
• http://jsonmate.com/
• http://jsonviewer.stack.hu/
• mb21.github.io/JSONedit, built as an Angular directive

Based on JSON Schema

• https://github.com/json-editor/json-editor
• https://github.com/mozilla-services/react-jsonschema-form
• https://github.com/json-schema-form/angular-schema-form
• https://github.com/joshfire/jsonform
• https://github.com/gitana/alpaca
• https://github.com/marianoguerra/json-edit
• https://github.com/exavolt/onde
• Tool for generating JSON Schemas: http://www.jsonschema.net
• http://metawidget.org
• Visual JSON Editor, Windows Desktop Application (free, open source), http://visualjsoneditor.org/

Commercial (No endorsement intended or implied, may or may not meet requirement)

• Liquid XML - JSON Schema Editor Graphical JSON Schema editor and validator.
• http://www.altova.com/download-json-editor.html
• XML ValidatorBuddy - JSON and XML editor supports JSON syntax-checking, syntax-coloring, auto-completion, JSON Pointer evaluation and JSON Schema validation.

jQuery

• formbuilder jQuery drag and drop
• formeo
• shalotelli form_builder

YAML

• Konstellate Reddit Post

See Also

• Google blockly
• Is there a JSON api based CMS that is hosted locally?
• cms-based concept ;; http://www.webhook.com/
• tree-based widget ;; http://mbraak.github.io/jqTree/
• http://mjsarfatti.com/sandbox/nestedSortable/
• http://jsonviewer.codeplex.com/
• http://xmlwebpad.codeplex.com/
• http://tadviewer.com/
• https://studio3t.com/knowledge-base/articles/visual-query-builder/

This help to hide and show the sidebar, and the content take place of the empty space left by the sidebar.

<div id="A">Sidebar</div>
<div id="B"><button>toggle</button>
Content here: Bla, bla, bla
</div>


//Toggle Hide/Show sidebar slowy
  $(document).ready(function(){
      $('#B').click(function(e) {
          e.preventDefault();
          $('#A').toggle('slow');
          $('#B').toggleClass('extended-panel'); 
      });
  }); 


html, body {
    margin: 0;
    padding: 0;
    border: 0;
}
#A, #B {
    position: absolute;
}
#A {
    top: 0px;
    width: 200px;
    bottom: 0px;
    background:orange;
}
#B {
    top: 0px;
    left: 200px;
    right: 0;
    bottom: 0px;
    background:green;
}

/* makes the content take place of the SIDEBAR 
   which is empty when is hided */
.extended-panel {
  left: 0px !important;
}

In Spring boot, /META-INF/resources/, /resources/, static/ and public/ directories are available to serve static contents.

So you can create a static/ or public/ directory under resources/ directory and put your static contents there. And they will be accessible by: http://localhost:8080/your-file.ext. (assuming the server.port is 8080)

You can customize these directories using spring.resources.static-locations in the application.properties.

For example:

spring.resources.static-locations=classpath:/custom/

Now you can use custom/ folder under resources/ to serve static files.

Update:

This is also possible using java config:

@Configuration
public class StaticConfig implements WebMvcConfigurer {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/static/**").addResourceLocations("classpath:/custom/");
    }
}

This confugration maps contents of custom directory to the http://localhost:8080/static/** url.

To use session variables, it's necessary to start the session by using the session_start function, this will allow you to store your data in the global variable $_SESSION in a productive way.

so your code will finally look like this :

<strong>Test Form</strong>
<form action="" method"post">
<input type="text" name="picturenum"/>
<input type="submit" name="Submit" value="Submit!" />
</form>

<?php 
 
 // starting the session
 session_start();


 if (isset($_POST['Submit'])) { 
 $_SESSION['picturenum'] = $_POST['picturenum'];
 } 
?> 

<strong><?php echo $_SESSION['picturenum'];?></strong>

to make it easy to use and to avoid forgetting it again, you can create a session_file.php which you will want to be included in all your codes and will start the session for you:

session_start.php

 <?php
   session_start();
 ?> 

and then include it wherever you like :

<strong>Test Form</strong>
<form action="" method"post">
<input type="text" name="picturenum"/>
<input type="submit" name="Submit" value="Submit!" />
</form>

<?php 
 
 // including the session file
 require_once("session_start.php");


 if (isset($_POST['Submit'])) { 
 $_SESSION['picturenum'] = $_POST['picturenum'];
 } 
?> 

that way it is more portable and easy to maintain in the future.

other remarks

• if you are using Apache version 2 or newer, be careful. instead of
  <?
  to open php's tags, use <?php, otherwise your code will not be interpreted

• variables names in php are case-sensitive, instead of write $_session, write $_SESSION in capital letters

good work!

select * 
from blah 
where DatetimeField between '22/02/2009 09:00:00.000' and '23/05/2009 10:30:00.000'

Depending on the country setting for the login, the month/day may need to be swapped around.

The syntax to modify a column in an existing table in SQL Server (Transact-SQL) is:

ALTER TABLE table_name
    ALTER COLUMN column_name column_type;

For example:

ALTER TABLE employees
    ALTER COLUMN last_name VARCHAR(75) NOT NULL;

This SQL Server ALTER TABLE example will modify the column called last_name to be a data type of VARCHAR(75) and force the column to not allow null values.

see here

Go to root folder

Right Click, click on Properties

Choose Tab Security

Click on Edit

Click on Add

Type 'EveryOne'

Click OK

Check Out Full Control

Click OK

None of the other answers worked for me. My workaround was to trigger a click on the video itself; hacky (because of the timeout that is needed) but it works fine:

function startVideoIfNotStarted () {
    $(".id_of_video_tag").ready(function () {
        window.setTimeout(function(){
            videojs("id_of_video_tag").play()
        }, 1000);
    });
}
$(startVideoIfNotStarted);

Pessimistic locking is generally not recommended and it's very costly in terms of performance on database side. The problem that you have mentioned (the code part) a few things are not clear such as:

• If your code is being accessed by multiple threads at the same time.
• How are you creating session object (not sure if you are using Spring)?

Hibernate Session objects are NOT thread-safe. So if there are multiple threads accessing the same session and trying to update the same database entity, your code can potentially end up in an error situation like this.

So what happens here is that more than one thread tries to update the same entity, one thread succeeds and when the next thread goes to commit the data, it sees that its already been modified and ends up throwing StaleObjectStateException.

EDIT:

There is a way to use Pessimistic Locking in Hibernate. Check out this link. But there seems to be some issue with this mechanism. I came across posting a bug in hibernate (HHH-5275), however. The scenario mentioned in the bug is as follows:

Two threads are reading the same database record; one of those threads should use pessimistic locking thereby blocking the other thread. But both threads can read the database record causing the test to fail.

This is very close to what you are facing. Please try this if this does not work, the only way I can think of is using Native SQL queries where you can achieve pessimistic locking in postgres database with SELECT FOR UPDATE query.

you can use

getElementsByClassName

suppose you have some elements and applied a class name 'test', so, you can get elements like as following

var tests = document.getElementsByClassName('test');

its returns an instance NodeList, or its superset: HTMLCollection (FF).

Read more

First, I mostly agree with beberlei on his suggestions. However, you may be designing yourself into a trap. Your domain appears to be considering the title to be the natural key for a track, which is likely the case for 99% of the scenarios you come across. However, what if Battery on Master of the Puppets is a different version (different length, live, acoustic, remix, remastered, etc) than the version on The Metallica Collection.

Depending on how you want to handle (or ignore) that case, you could either go beberlei's suggested route, or just go with your proposed extra logic in Album::getTracklist(). Personally, I think the extra logic is justified to keep your API clean, but both have their merit.

If you do wish to accommodate my use case, you could have Tracks contain a self referencing OneToMany to other Tracks, possibly $similarTracks. In this case, there would be two entities for the track Battery, one for The Metallica Collection and one for Master of the Puppets. Then each similar Track entity would contain a reference to each other. Also, that would get rid of the current AlbumTrackReference class and eliminate your current "issue". I do agree that it is just moving the complexity to a different point, but it is able to handle a usecase it wasn't previously able to.

Plus operator is perfectly fine solution to concatenate two Python strings. But if you keep adding more than two strings (n > 25) , you might want to think something else.

''.join([a, b, c]) trick is a performance optimization.

You can use Controls attribute

<video id="sampleMovie" src="HTML5Sample.mov" controls></video>

For php 7 on Ubuntu:

sudo apt-get install php7.0-gd

document.getElementById("tblBlah").rows[i].columns[j].innerHTML;

Should be:

document.getElementById("tblBlah").rows[i].cells[j].innerHTML;

But I get the distinct impression that the row/cell you need is the one clicked by the user. If so, the simplest way to achieve this would be attaching an event to the cells in your table:

function alertInnerHTML(e)
{
    e = e || window.event;//IE
    alert(this.innerHTML);
}

var theTbl = document.getElementById('tblBlah');
for(var i=0;i<theTbl.length;i++)
{
    for(var j=0;j<theTbl.rows[i].cells.length;j++)
    {
        theTbl.rows[i].cells[j].onclick = alertInnerHTML;
    }
}

That makes all table cells clickable, and alert it's innerHTML. The event object will be passed to the alertInnerHTML function, in which the this object will be a reference to the cell that was clicked. The event object offers you tons of neat tricks on how you want the click event to behave if, say, there's a link in the cell that was clicked, but I suggest checking the MDN and MSDN (for the window.event object)

This may be old, but... if you change the link in google stock list as below:

https://www.google.com/finance?q=%5B(exchange%20%3D%3D%20%22NASDAQ%22)%5D&restype=company&noIL=1&num=30000

• note for the noIL=1&num=30000

It means, starting for row 1 to 30000. It shows all results in one page.

You may automate it using any language or just export the table to excel.

Hope it helps.

My first answer!

This will set the safemode switch:

bcdedit /set {current} safeboot minimal 

with networking:

bcdedit /set {current} safeboot network

then reboot the machine with

shutdown /r

to put back in normal mode via dos:

bcdedit /deletevalue {current} safeboot

You can create a directory inside the camera folder and save the image. After that, you can simply perform your scan. It will instantly show your image in the gallery.

String root = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).toString()+ "/Camera/Your_Directory_Name";
File myDir = new File(root);
myDir.mkdirs();
String fname = "Image-" + image_name + ".png";
File file = new File(myDir, fname);
System.out.println(file.getAbsolutePath());
if (file.exists()) file.delete();
    Log.i("LOAD", root + fname);
    try {
        FileOutputStream out = new FileOutputStream(file);
        finalBitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
        out.flush();
        out.close();
    } catch (Exception e) {
       e.printStackTrace();
    }

MediaScannerConnection.scanFile(context, new String[]{file.getPath()}, new String[]{"image/jpeg"}, null);

You can give everybody execute permission:

GRANT Execute on [dbo].your_object to [public]

"Public" is the default database role that all users are a member of.

Update for 2020 - BinaryPrimitives should now be preferred over BitConverter. It provides endian-specific APIs, and is less allocatey.

byte[] bytes = BitConverter.GetBytes(i);

although note also that you might want to check BitConverter.IsLittleEndian to see which way around that is going to appear!

Note that if you are doing this repeatedly you might want to avoid all those short-lived array allocations by writing it yourself via either shift operations (>> / <<), or by using unsafe code. Shift operations also have the advantage that they aren't affected by your platform's endianness; you always get the bytes in the order you expect them.

You can easily write the method to do that :

  public static String toCamelCase(final String init) {
    if (init == null)
        return null;

    final StringBuilder ret = new StringBuilder(init.length());

    for (final String word : init.split(" ")) {
        if (!word.isEmpty()) {
            ret.append(Character.toUpperCase(word.charAt(0)));
            ret.append(word.substring(1).toLowerCase());
        }
        if (!(ret.length() == init.length()))
            ret.append(" ");
    }

    return ret.toString();
}

This seems to be answered - #include <fstream>.

The message means :-

incomplete type - the class has not been defined with a full class. The compiler has seen statements such as class ifstream; which allow it to understand that a class exists, but does not know how much memory the class takes up.

The forward declaration allows the compiler to make more sense of :-

void BindInput( ifstream & inputChannel ); 

It understands the class exists, and can send pointers and references through code without being able to create the class, see any data within the class, or call any methods of the class.

The has initializer seems a bit extraneous, but is saying that the incomplete object is being created.

Modern browsers

Plain JavaScript

If a DOM element which is removed is reference-free (no references pointing to it) then yes - the element itself is picked up by the garbage collector as well as any event handlers/listeners associated with it.

var a = document.createElement('div');
var b = document.createElement('p');
// Add event listeners to b etc...
a.appendChild(b);
a.removeChild(b);
b = null; 
// A reference to 'b' no longer exists 
// Therefore the element and any event listeners attached to it are removed.

However; if there are references that still point to said element, the element and its event listeners are retained in memory.

var a = document.createElement('div');
var b = document.createElement('p'); 
// Add event listeners to b etc...
a.appendChild(b);
a.removeChild(b); 
// A reference to 'b' still exists 
// Therefore the element and any associated event listeners are still retained.

jQuery

It would be fair to assume that the relevant methods in jQuery (such as remove()) would function in the exact same way (considering remove() was written using removeChild() for example).

However, this isn't true; the jQuery library actually has an internal method (which is undocumented and in theory could be changed at any time) called cleanData() (here is what this method looks like) which automatically cleans up all the data/events associated with an element upon removal from the DOM (be this via. remove(), empty(), html("") etc).

Older browsers

Older browsers - specifically older versions of IE - are known to have memory leak issues due to event listeners keeping hold of references to the elements they were attached to.

If you want a more in-depth explanation of the causes, patterns and solutions used to fix legacy IE version memory leaks, I fully recommend you read this MSDN article on Understanding and Solving Internet Explorer Leak Patterns.

A few more articles relevant to this:

• JScript memory leaks
• Memory leaks in IE8
• JavaScript Memory Leaks

Manually removing the listeners yourself would probably be a good habit to get into in this case (only if the memory is that vital to your application and you are actually targeting such browsers).

To find the last item, I find this piece of code works every time:

foreach( $items as $item ) {
    if( !next( $items ) ) {
        echo 'Last Item';
    }
}

Use -B, -A or -C option

grep --help
...
-B, --before-context=NUM  print NUM lines of leading context
-A, --after-context=NUM   print NUM lines of trailing context
-C, --context=NUM         print NUM lines of output context
-NUM                      same as --context=NUM
...

This happens because Oracle dropped support for Windows XP (which doesn't have RegDeleteKeyExA used by the installer in its ADVAPI32.DLL by the way) as described in http://mail.openjdk.java.net/pipermail/openjfx-dev/2013-July/009005.html. Yet while the official support for XP has ended, the Java binaries are still (as of Java 8u20 EA b05 at least) XP-compatible - only the installer isn't...

Because of that, the solution is actually quite easy:

1. get 7-Zip (or any other good unpacker), unpack the distribution .exe manually, it has one .zip file inside of it (tools.zip), extract it too,

2. use unpack200 from JDK8 to unpack all .pack files to .jar files (older unpacks won't work properly); JAVA_HOME environment variable should be set to your Java unpack root, e.g. "C:\Program Files\Java\jdk8" - you can specify it implicitly by e.g.

   SET JAVA_HOME=C:\Program Files\Java\jdk8
   

   • Unpack all files with a single command (in batch file):

     FOR /R %%f IN (*.pack) DO "%JAVA_HOME%\bin\unpack200.exe" -r -v "%%f" "%%~pf%%~nf.jar"
     

   • Unpack all files with a single command (command line from JRE root):

     FOR /R %f IN (*.pack) DO "bin\unpack200.exe" -r -v "%f" "%~pf%~nf.jar"
     

   • Unpack by manually locating the files and unpacking them one-by-one:

     %JAVA_HOME%\bin\unpack200 -r packname.pack packname.jar
     

   where packname is for example rt

3. point the tool you want to use (e.g. Netbeans) to the %JAVA_HOME% and you're good to go.

Note: you probably shouldn't do this just to use Java 8 in your web browser or for any similar reason (installing JRE 8 comes to mind); security flaws in early updates of major Java version releases are (mind me) legendary, and adding to that no real support for neither XP nor Java 8 on XP only makes matters much worse. Not to mention you usually don't need Java in your browser (see e.g. http://nakedsecurity.sophos.com/2013/01/15/disable-java-browsers-homeland-security/ - the topic is already covered on many pages, just Google it if you require further info). In any case, AFAIK the only thing required to apply this procedure to JRE is to change some of the paths specified above from \bin\ to \lib\ (the file placement in installer directory tree is a bit different) - yet I strongly advise against doing it.

See also: How can I get the latest JRE / JDK as a zip file rather than EXE or MSI installer?, JRE 1.7 - java version - returns: java/lang/NoClassDefFoundError: java/lang/Object

using C# 6.0

$"Date-{DateTime.Now:yyyyMMddHHmmss}"

You can use the new Object.fromEntries() method.

Example:

const array = [_x000D_
   {key: 'a', value: 'b', redundant: 'aaa'},_x000D_
   {key: 'x', value: 'y', redundant: 'zzz'}_x000D_
]_x000D_
_x000D_
const hash = Object.fromEntries(_x000D_
   array.map(e => [e.key, e.value])_x000D_
)_x000D_
_x000D_
console.log(hash) // {a: b, x: y}

In Pandas version 0.13 and greater the index level names are immutable (type FrozenList) and can no longer be set directly. You must first use Index.rename() to apply the new index level names to the Index and then use DataFrame.reindex() to apply the new index to the DataFrame. Examples:

For Pandas version < 0.13

df.index.names = ['Date']

For Pandas version >= 0.13

df = df.reindex(df.index.rename(['Date']))

Here is an example of how to generate classes from wsdl with jaxws maven plugin from a url or from a file location (from wsdl file location is commented).

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<build>  
    <plugins>           
        <!-- usage of jax-ws maven plugin-->
        <plugin> 
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>jaxws-maven-plugin</artifactId>
            <version>1.12</version>
            <executions> 
                <execution> 
                    <id>wsimport-from-jdk</id>
                    <goals>
                        <goal>wsimport</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <!-- using wsdl from an url -->
                <wsdlUrls>
                    <wsdlUrl>
                        http://myWSDLurl?wsdl
                    </wsdlUrl>
                </wsdlUrls>
                <!-- or using wsdls file directory -->
                    <!-- <wsdlDirectory>src/wsdl</wsdlDirectory> -->
                <!-- which wsdl file -->
                <!-- <wsdlFiles> -->
                    <!-- <wsdlFile>myWSDL.wsdl</wsdlFile> -->
                <!--</wsdlFiles> -->
                <!-- Keep generated files -->
                <keep>true</keep> 
                <!-- Package name --> 
                <packageName>com.organization.name</packageName> 
                <!-- generated source files destination-->
                <sourceDestDir>target/generatedclasses</sourceDestDir>
            </configuration>
        </plugin>
    </plugins>  
</build>  

Others have very well described the difference between First() and FirstOrDefault(). I want to take a further step in interpreting the semantics of these methods. In my opinion FirstOrDefault is being overused a lot. In the majority of the cases when you’re filtering data you would either expect to get back a collection of elements matching the logical condition or a single unique element by its unique identifier – such as a user, book, post etc... That’s why we can even get as far as saying that FirstOrDefault() is a code smell not because there is something wrong with it but because it’s being used way too often. This blog post explores the topic in details. IMO most of the times SingleOrDefault() is a much better alternative so watch out for this mistake and make sure you use the most appropriate method that clearly represents your contract and expectations.

Very similar to peixe.
You don't have to mention the number if the variables you add as parameters are in order of appearance

f = open('{}.csv'.format(name), 'wb')

Another option - the f-string formatting (ref):

f = open(f"{name}.csv", 'wb') 

return false; at the end of the onclick handler will do the job. However, it's be better to simply add type="button" to the <button> - that way it behaves properly even without any JavaScript.

Another fix for those who have IIS Installed:

Create a path on the IIS Server, and allocate your website/app there.

Go to propieties of the solution of the explorer, then in front of using the iisexpress from visual studio, make that vs uses your personal own IIS.

You didn't typed the closingtag from the div with id="infohold.

Try This:

foreach (string files in Directory.GetFiles(SourcePath))
{
   FileInfo fileInfo = new FileInfo(files);
   fileInfo.Delete(); //delete the files first. 
}
Directory.Delete(SourcePath);// delete the directory as it is empty now.

I have the same problem.

I solved prefixing my gitlab username to the gitlab.com url, so like this: before: https://gitlab.com/my_gitlab_user/myrepo.git and after: https://[email protected]/my_gitlab_user/myrepo.git In this case will ask for the credentials again and it's done!

You do not need the latex2exp package to do what you wanted to do. The following code would do the trick.

ggplot(smr, aes(Fuel.Rate, Eng.Speed.Ave., color=Eng.Speed.Max.)) + 
  geom_point() + 
  labs(title=expression("Fuel Efficiency"~(alpha*Omega)), 
color=expression(alpha*Omega), x=expression(Delta~price))

Also, some comments (unanswered as of this point) asked about putting an asterisk (*) after a Greek letter. expression(alpha~"*") works, so I suggest giving it a try.

More comments asked about getting ? Price and I find the most straightforward way to achieve that is expression(Delta~price)). If you need to add something before the Greek letter, you can also do this: expression(Indicative~Delta~price) which gets you: