I added a new environment variable ANDROID_HOME and pointed it to the SDK (C:\Program Files (x86)\Android\android-studio\sdk) that is inside the installation directory of Android Studio. (Environment variables are a part of windows; you access them through the advanced computer properties...google it for more info)

** 2019 Answer **

In a normal situation display:none doesn't prevent the image to be downloaded

/*will be downloaded*/

#element1 {
    display: none;
    background-image: url('https://picsum.photos/id/237/100');
}

But if an ancestor element has display:none then the descendant's images will not be downloaded

/* Markup */

<div id="father">
    <div id="son"></div>
</div>


/* Styles */

#father {
    display: none;
}

/* #son will not be downloaded because the #father div has display:none; */

#son {
    background-image: url('https://picsum.photos/id/234/500');
}

Other situations that prevent the image to be downloaded:

1- The target element doesn't exist

/* never will be downloaded because the target element doesn't exist */

#element-dont-exist {
    background-image: url('https://picsum.photos/id/240/400');
}

2- Two equal classes loading different images

/* The first image of #element2 will never be downloaded because the other #element2 class */

#element2 {
    background-image: url('https://picsum.photos/id/238/200');
}

/* The second image of #element2 will be downloaded */

#element2 {
    background-image: url('https://picsum.photos/id/239/300');
}

You can watch for yourself here: https://codepen.io/juanmamenendez15/pen/dLQPmX

The naive algorithm, which is what you've got once you correct it as noted in comments, is O(n^3).

There do exist algorithms that reduce this somewhat, but you're not likely to find an O(n^2) implementation. I believe the question of the most efficient implementation is still open.

See this wikipedia article on Matrix Multiplication for more information.

First of all can I just say that I really really love the Internet community for all that it does in providing answers to everybody. I don't post a lot but everybody's posting here and on so many boards helped me so much! None of them gave me the right answer mind you, but here is my unique solution to this nightmare of a spending 2 solid days trying to install MySQL 5.5.9 on Snow Leopard 10.6. Skip to bottom for resolution.

Here's what happened.

I had a server crash recently. The server was rebuilt and of course MySQL 5.5.8 didn't work. What a worthless piece. I had 5.1.54 on my other machine. That had been a pain to install as well but not like this.

I had all sorts of issues installing with the dmg from mysql.org, installing mysql5 using macports, uninstalling trying to revert to 5.1.54 (couldn't because I couldn't find the receipt file with that info even though I followed the directions). After rming everything I could find related to mysql and then reinstalling 5.5.8 everything worked! Until I rebooted... ? I looked in my system preference mysql pane and found mysql server wasn't starting. (skip to end for resolution)

My first error (super common) included: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysql.sock' and numerous other EXTREMELY common issues related to mysql.sock http://forums.mysql.com/read.php?11,9689,13272

Here were things I tried: 1)Create /etc/my.cnf file with the proper paths to mysql.sock. I even tried modifying mysql.server with vi directly. Modifying the php.ini was worthless. Nothing worked because MySQL wasn't starting, therefore it wasn't creating mysql.sock in the first place. Maybe you can point to the directory it is being created, and not the actual full file path i.e. not /tmp/mysql.sock but /tmp It was suggested but wasn't working because there was no mysql.sock because mysqld wasn't spawning.

2)Basedir and datadir modifications didn't work because there was no mysql.sock to point too.

Why? Because the mysql daemon wasn't starting. Without anything to start mysqld and thereby create mysql.sock I was doomed. They are an important part of the solution but if you try them and still get errors, you will know why.

3)sudo chown -R root:wheel /Library/StartupItems/MySQLCOM/

didn't solve my problem. I ended up having that folder and all items set to root:wheel though in the end, because it was one of the many things recommended and its working. Maybe it could remain _mysql but wheel works.

4)Copy mysql.sock from another machine. Doesn't work. I had searched and searched my new machine and couldn't find mysql.sock. I was using find / | grep mysql.sock because locate mysql wasn't finding anything. Besides I was trying so many different things it wasn't updating enough to find my new installs. I now like find much more than locate, even though you can update the locate db. Anyhow you can't copy mysql.sock, even if you tar it because its a 0 byte file.

THE RESOLUTION: I finally stumbled onto the solution. I finally just typed mysqld from command line while I was in the proper bin directory. It said another process was running. _mysql was spawning a process that I could see in the Activity Monitor. I killed the active mysql process and when I typed mysqld again I found it was creating my mysql.sock file in the /private/tmp/mysql.sock

The mysql pref pane wouldn't start the right process on login, so I just disabled that for being worthless. It wouldn't start mysql because no mysql.sock was being created.

By then I had figured out that mysqld creates mysql.sock. I then found /opt/local/mysql/ and typed "open bin" in the terminal window. This opened the directory with mysqld in it.

I went to login items in the system preferences in my account settings and dragged and dropped the mysqld file onto the startup items there. THAT worked. Finally!

It works flawlessly because mysqld is starting up at login, which means mysql.sock is being created so no more errors about not being able to find mysql.sock.

str.startswith allows you to supply a tuple of strings to test for:

if link.lower().startswith(("js", "catalog", "script", "katalog")):

From the docs:

str.startswith(prefix[, start[, end]])

Return True if string starts with the prefix, otherwise return False. prefix can also be a tuple of prefixes to look for.

Below is a demonstration:

>>> "abcde".startswith(("xyz", "abc"))
True
>>> prefixes = ["xyz", "abc"]
>>> "abcde".startswith(tuple(prefixes)) # You must use a tuple though
True
>>>

SELECT t.name 
  FROM sys.tables AS t
  INNER JOIN sys.schemas AS s
  ON t.[schema_id] = s.[schema_id]
  WHERE s.name = N'schema_name';

plt.figure(figsize=(15,10))
graph = sns.barplot(x='name_column_x_axis', y="name_column_x_axis", data = dataframe_name ,  color="salmon")
for p in graph.patches:
        graph.annotate('{:.0f}'.format(p.get_height()), (p.get_x()+0.3, p.get_height()),
                    ha='center', va='bottom',
                    color= 'black')

Here is the Complete solution.

You can also use it as a Helper class in your Projects.

"use strict";_x000D_
/**_x000D_
 * @description Util file_x000D_
 * @author Tarandeep Singh_x000D_
 * @created 2016-08-09_x000D_
 */_x000D_
_x000D_
window.Sys = {};_x000D_
_x000D_
Sys = {_x000D_
  isEmptyObject: function(val) {_x000D_
    return this.isObject(val) && Object.keys(val).length;_x000D_
  },_x000D_
  /** This Returns Object Type */_x000D_
  getType: function(val) {_x000D_
    return Object.prototype.toString.call(val);_x000D_
  },_x000D_
  /** This Checks and Return if Object is Defined */_x000D_
  isDefined: function(val) {_x000D_
    return val !== void 0 || typeof val !== 'undefined';_x000D_
  },_x000D_
  /** Run a Map on an Array **/_x000D_
  map: function(arr, fn) {_x000D_
    var res = [],_x000D_
      i = 0;_x000D_
    for (; i < arr.length; ++i) {_x000D_
      res.push(fn(arr[i], i));_x000D_
    }_x000D_
    arr = null;_x000D_
    return res;_x000D_
  },_x000D_
  /** Checks and Return if the prop is Objects own Property */_x000D_
  hasOwnProp: function(obj, val) {_x000D_
    return Object.prototype.hasOwnProperty.call(obj, val);_x000D_
  },_x000D_
  /** Extend properties from extending Object to initial Object */_x000D_
  extend: function(newObj, oldObj) {_x000D_
    if (this.isDefined(newObj) && this.isDefined(oldObj)) {_x000D_
      for (var prop in oldObj) {_x000D_
        if (this.hasOwnProp(oldObj, prop)) {_x000D_
          newObj[prop] = oldObj[prop];_x000D_
        }_x000D_
      }_x000D_
      return newObj;_x000D_
    } else {_x000D_
      return newObj || oldObj || {};_x000D_
    }_x000D_
  }_x000D_
};_x000D_
_x000D_
// This Method will create Multiple functions in the Sys object that can be used to test type of_x000D_
['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp', 'Object', 'Array', 'Undefined']_x000D_
.forEach(_x000D_
  function(name) {_x000D_
    Sys['is' + name] = function(obj) {_x000D_
      return toString.call(obj) == '[object ' + name + ']';_x000D_
    };_x000D_
  }_x000D_
);

<h1>Use the Helper JavaScript Methods..</h1>_x000D_
<code>use: if(Sys.isDefined(jQuery){console.log("O Yeah... !!");}</code>

For Exportable CommonJs Module or RequireJS Module....

"use strict";

/*** Helper Utils ***/

/**
 * @description Util file :: From Vault
 * @author Tarandeep Singh
 * @created 2016-08-09
 */

var Sys = {};

Sys = {
    isEmptyObject: function(val){
        return this.isObject(val) && Object.keys(val).length;
    },
    /** This Returns Object Type */
    getType: function(val){
        return Object.prototype.toString.call(val);
    },
    /** This Checks and Return if Object is Defined */
    isDefined: function(val){
        return val !== void 0 || typeof val !== 'undefined';
    },
    /** Run a Map on an Array **/
    map: function(arr,fn){
        var res = [], i=0;
        for( ; i<arr.length; ++i){
            res.push(fn(arr[i], i));
        }
        arr = null;
        return res;
    },
    /** Checks and Return if the prop is Objects own Property */
    hasOwnProp: function(obj, val){
        return Object.prototype.hasOwnProperty.call(obj, val);
    },
    /** Extend properties from extending Object to initial Object */
    extend: function(newObj, oldObj){
        if(this.isDefined(newObj) && this.isDefined(oldObj)){
            for(var prop in oldObj){
                if(this.hasOwnProp(oldObj, prop)){
                    newObj[prop] = oldObj[prop];
                }
            }
            return newObj;
        }else {
            return newObj || oldObj || {};
        }
    }
};

/**
 * This isn't Required but just makes WebStorm color Code Better :D
 * */
Sys.isObject
    = Sys.isArguments
    = Sys.isFunction
    = Sys.isString
    = Sys.isArray
    = Sys.isUndefined
    = Sys.isDate
    = Sys.isNumber
    = Sys.isRegExp
    = "";

/** This Method will create Multiple functions in the Sys object that can be used to test type of **/

['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp', 'Object', 'Array', 'Undefined']
    .forEach(
        function(name) {
            Sys['is' + name] = function(obj) {
                return toString.call(obj) == '[object ' + name + ']';
            };
        }
    );


module.exports = Sys;

Currently in Use on a public git repo. Github Project

Now you can import this Sys code in a Sys.js file. then you can use this Sys object functions to find out the type of JavaScript Objects

you can also check is Object is Defined or type is Function or the Object is Empty... etc.

• Sys.isObject
• Sys.isArguments
• Sys.isFunction
• Sys.isString
• Sys.isArray
• Sys.isUndefined
• Sys.isDate
• Sys.isNumber
• Sys.isRegExp

For Example

var m = function(){};
Sys.isObject({});
Sys.isFunction(m);
Sys.isString(m);

console.log(Sys.isDefined(jQuery));

Pro tip. If you want to turn on focus from the dev console then just open the console as a separate window from the options tab. The latest Firefox and Chrome supports this feature.

Following yet again on the use of a custom aggregate function of string concatenation: you need to remember that the select statement will place rows in any order, so you will need to do a sub select in the from statement with an order by clause, and then an outer select with a group by clause to aggregate the strings, thus:

SELECT custom_aggregate(MY.special_strings)
FROM (SELECT special_strings, grouping_column 
        FROM a_table 
        ORDER BY ordering_column) MY
GROUP BY MY.grouping_column

Try this way header('Content-Type: text/plain; charset=utf-8');

 struct x myX;
 ...
 memset(&x, 0, sizeof(myX));

Steps to do it on PgAdmin:

• CREATE SEQUENCE sequnence_title START 1; // if table exist last id
• Add this sequense to the primary key, table - properties - columns - column_id(primary key) edit - Constraints - Add nextval('sequnence_title'::regclass) to the field default.

Yes, you must open php.ini and remove the semicolon to:

;extension=php_openssl.dll

If you don't have that line, check that you have the file (In my PC is on D:\xampp\php\ext) and add this to php.ini in the "Dynamic Extensions" section:

extension=php_openssl.dll

Things have changed for PHP > 7. This is what i had to do for PHP 7.2.

Step: 1: Uncomment extension=openssl

Step: 2: Uncomment extension_dir = "ext"

Step: 3: Restart xampp.

Done.

Explanation: ( From php.ini )

If you wish to have an extension loaded automatically, use the following syntax:

extension=modulename

Note : The syntax used in previous PHP versions (extension=<ext>.so and extension='php_<ext>.dll) is supported for legacy reasons and may be deprecated in a future PHP major version. So, when it is possible, please move to the new (extension=<ext>) syntax.

Special Note: Be sure to appropriately set the extension_dir directive.

This is deletes the table table_name.

Replace it with the name of the table, which shall be deleted.

DELETE FROM table_name;

Same thing, with jQuery:

$('#links a').each(function(){
    var me = $(this);
    me.html( me.text().replace(/(^\w+)/,'<strong>$1</strong>') );
  });

or

$('#links a').each(function(){
    var me = $(this)
       , t = me.text().split(' ');
    me.html( '<strong>'+t.shift()+'</strong> '+t.join(' ') );
  });

(Via 'Wizzud' on the jQuery Mailing List)

On Linux and Mac OS, the following works,

:%s/^V^M/^V^M/g

where ^V^M means type Ctrl+V, then Ctrl+M.

_{Note: on Windows you probably want to use ^Q instead of ^V, since by default ^V is mapped to paste text.}

This should work i did the following for a game server project. It will download the zip and extract it to what ever directory you specify.

Save as name.bat or name.cmd

@echo off
set downloadurl=http://media.steampowered.com/installer/steamcmd.zip
set downloadpath=C:\steamcmd\steamcmd.zip
set directory=C:\steamcmd\
%WINDIR%\System32\WindowsPowerShell\v1.0\powershell.exe -Command "& {Import-Module BitsTransfer;Start-BitsTransfer '%downloadurl%' '%downloadpath%';$shell = new-object -com shell.application;$zip = $shell.NameSpace('%downloadpath%');foreach($item in $zip.items()){$shell.Namespace('%directory%').copyhere($item);};remove-item '%downloadpath%';}"
echo download complete and extracted to the directory.
pause

Original : https://github.com/C0nw0nk/SteamCMD-AutoUpdate-Any-Gameserver/blob/master/steam.cmd

A lot of correct answers here. However, one item is missing and I wasn't able to run the emulator from the command line without it.

export JAVA_HOME=$(/usr/libexec/java_home)
export PATH=$PATH:$JAVA_HOME/bin

export ANDROID_HOME=$HOME/Library/Android/sdk
export PATH=$PATH:$ANDROID_HOME/emulator       # can't run emulator without it
export PATH=$PATH:$ANDROID_HOME/tools
export PATH=$PATH:$ANDROID_HOME/platform-tools

So it's a compilation of the answers above plus a solution for this problem.

And if you use zsh (instead of bash) the file to edit is ~/.zshrc.

How is this

String is "hello" and required padding is 15 with "0" left pad

String ax="Hello";
while(ax.length() < 15) ax="0"+ax;

If you need different column width, do this:

<tr>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
</tr>
<tr>
    <td colspan="9">
        <table>
            <tr>
                <td></td>
                <td></td>
                <td></td>
                <td></td>
            </tr>
        </table>
    </td>
</tr>

Markdown gets converted into HTML/XHMTL.

John Gruber created the Markdown language in 2004 in collaboration with Aaron Swartz on the syntax, with the goal of enabling people to write using an easy-to-read, easy-to-write plain text format, and optionally convert it to structurally valid HTML (or XHTML).

HTML is completely based on using   for adding extra spaces if it doesn't externally define/use JavaScript or CSS for elements.

Markdown is a lightweight markup language with plain text formatting syntax. It is designed so that it can be converted to HTML and many other formats using a tool by the same name.

If you want to use »

1. only one space » either use   or just hit Spacebar (2nd one is good choice in this case)

2. more than one space » use  +space (for 2 consecutive spaces)

eg. If you want to add 10 spaces contiguously then you should use

                   

 space space space space space

instead of using 10   one after one as the below one

          

For more details check

1. Adding multiple spaces between text in Markdown,
2. How to create extra space in HTML or web page.

A way that is clean and short:

Public Function IsFile(s)
    IsFile = CreateObject("Scripting.FileSystemObject").FileExists(s)
End Function

I realize you're wanting to accomplish this with CSS, but just a reminder in case it's a small, simple image - you can always pop it open in Notepad++ and change the path/whateverelement's fill:

<path style="fill:#010002;" d="M394.854,205.444c9.218-15.461,19.102-30.181,14.258-49.527
    ...
    C412.843,226.163,402.511,211.451,394.854,205.444z"/>

It could save a ton of ugly script. Sorry if it's off-base, but sometimes the simple solutions can be overlooked.

...even swapping multiple svg images might be smaller in size than some of the code snippets for this question.

You can use Dictonary to map Assume Milk,Butter,Chesse are group A (ListA) Water,Beer,Wine are group B

Dictonary<string,List<string>>) dataMap;
dataMap.add("A",ListA);
dataMap.add("B",ListB);

At View , you can foreach Keys in dataMap and process your action

The Elements() method returns an IEnumerable<XElement> containing all child elements of the current node. For an XDocument, that collection only contains the Root element. Therefore the following is required:

var query = from c in xmlFile.Root.Elements("Band")
            select c;

This will help you.

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>

When working with pennies/integers. You will run into a problem with 115 (as in $1.15) and other numbers.

I had a function that would convert an Integer to a Float.

...
return float(115 * 0.01)

That worked most of the time but sometimes it would return something like 1.1500000000000001.

So I changed my function to return like this...

...
return float(format(115 * 0.01, '.2f'))

and that will return 1.15. Not '1.15' or 1.1500000000000001 (returns a float, not a string)

I'm mostly posting this so I can remember what I did in this scenario since this is the first result in google.

First convert all your objects into valid Strings

HashMap<String, String> params = new HashMap<>();
params.put("arg1", "<b>some text</b>");
params.put("arg2", someObject.toString());

Then insert the entire map into a org.json.JSONObject

JSONObject postData = new JSONObject(params);

Now you can get the JSON by simply calling the object's toString

postData.toString()
//{"arg1":"<b>some text<\/b>" "arg2":"object output"}

Create a new JSONObject

JSONObject o = new JSONObject(postData.toString());

Or as a byte array for sending over HTTP

postData.toString().getBytes("UTF-8");

using command

npm install bootstrap --save

open .angular.json old (.angular-cli.json ) file find the "styles" add the bootstrap css file

"styles": [
       "src/styles.scss",
       "node_modules/bootstrap/dist/css/bootstrap.min.css"
],

Let your working branch is development and want to differentiate between local development branch and remote development branch, that case, syntax should be like git diff remotes/origin/development..development
or

git fetch origin git diff origin/development

Check your Internet connection. If internet speed is very slow gradle build will also take long time to build. I check by change my wifi internet connection with another one good speed connection. Now build time is normal. Please try this before you go to other solutions. somebody will take wrong decision to reinstall or change settings. I hope it will help. Thanks and regards.

shared folders VS synced folders

Basically shared folders are renamed to synced folder from v1 to v2 (docs), under the bonnet it is still using vboxsf between host and guest (there is known performance issues if there are large numbers of files/directories).

Vagrantfile directory mounted as /vagrant in guest

Vagrant is mounting the current working directory (where Vagrantfile resides) as /vagrant in the guest, this is the default behaviour.

See docs

NOTE: By default, Vagrant will share your project directory (the directory with the Vagrantfile) to /vagrant.

You can disable this behaviour by adding cfg.vm.synced_folder ".", "/vagrant", disabled: true in your Vagrantfile.

Why synced folder is not working

Based on the output /tmp on host was NOT mounted during up time.

Use VAGRANT_INFO=debug vagrant up or VAGRANT_INFO=debug vagrant reload to start the VM for more output regarding why the synced folder is not mounted. Could be a permission issue (mode bits of /tmp on host should be drwxrwxrwt).

I did a test quick test using the following and it worked (I used opscode bento raring vagrant base box)

config.vm.synced_folder "/tmp", "/tmp/src"

output

$ vagrant reload
[default] Attempting graceful shutdown of VM...
[default] Setting the name of the VM...
[default] Clearing any previously set forwarded ports...
[default] Creating shared folders metadata...
[default] Clearing any previously set network interfaces...
[default] Available bridged network interfaces:
1) eth0
2) vmnet8
3) lxcbr0
4) vmnet1
What interface should the network bridge to? 1
[default] Preparing network interfaces based on configuration...
[default] Forwarding ports...
[default] -- 22 => 2222 (adapter 1)
[default] Running 'pre-boot' VM customizations...
[default] Booting VM...
[default] Waiting for VM to boot. This can take a few minutes.
[default] VM booted and ready for use!
[default] Configuring and enabling network interfaces...
[default] Mounting shared folders...
[default] -- /vagrant
[default] -- /tmp/src

Within the VM, you can see the mount info /tmp/src on /tmp/src type vboxsf (uid=900,gid=900,rw).

:last-child will not work if the element is not the VERY LAST element

In addition to Harry's answer, I think it's crucial to add/emphasize that :last-child will not work if the element is not the VERY LAST element in a container. For whatever reason it took me hours to realize that, and even though Harry's answer is very thorough I couldn't extract that information from "The last-child selector is used to select the last child element of a parent."

Suppose this is my selector: a:last-child {}

This works:

<div>
    <a></a>
    <a>This will be selected</a>
</div>

This doesn't:

<div>
    <a></a>
    <a>This will no longer be selected</a>
    <div>This is now the last child :'( </div>
</div>

It doesn't because the a element is not the last element inside its parent.

It may be obvious, but it was not for me...

Make sure of the conflict origin: if it is the result of a git merge, see Brian Campbell's answer.

But if is the result of a git rebase, in order to discard remote (their) changes and use local changes, you would have to do a:

git checkout --theirs -- .

See "Why is the meaning of “ours” and “theirs” reversed"" to see how ours and theirs are swapped during a rebase (because the upstream branch is checked out).

@rap-2-h and @Ztuons Ch's answer doesn't allow for the showTooltips option to be active, but what you can do is create and layer a second canvas object behind the one rendering the chart.

The important part is the styling required in the divs and for the canvas object itself so that they render on top of each other.

var data = [_x000D_
    {value : 100, color : 'rgba(226,151,093,1)', highlight : 'rgba(226,151,093,0.75)', label : "Sector 1"},_x000D_
    {value : 100, color : 'rgba(214,113,088,1)', highlight : 'rgba(214,113,088,0.75)', label : "Sector 2"},_x000D_
    {value : 100, color : 'rgba(202,097,096,1)', highlight : 'rgba(202,097,096,0.75)', label : "Sector 3"}_x000D_
]_x000D_
_x000D_
var options = { showTooltips : true };_x000D_
     _x000D_
var total = 0;_x000D_
for (i = 0; i < data.length; i++) {_x000D_
     total = total + data[i].value;_x000D_
}_x000D_
_x000D_
var chartCtx = $("#canvas").get(0).getContext("2d");_x000D_
var chart = new Chart(chartCtx).Doughnut(data, options);_x000D_
_x000D_
var textCtx = $("#text").get(0).getContext("2d");_x000D_
textCtx.textAlign = "center";_x000D_
textCtx.textBaseline = "middle";_x000D_
textCtx.font = "30px sans-serif";_x000D_
textCtx.fillText(total, 150, 150);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="//cdnjs.cloudflare.com/ajax/libs/Chart.js/1.0.2/Chart.min.js"></script>_x000D_
<html>_x000D_
<body>_x000D_
<div style="position: relative; width:300px; height:300px;">_x000D_
    <canvas id="text" _x000D_
            style="z-index: 1; _x000D_
                   position: absolute;_x000D_
                   left: 0px; _x000D_
                   top: 0px;" _x000D_
            height="300" _x000D_
            width="300"></canvas>_x000D_
    <canvas id="canvas" _x000D_
            style="z-index: 2; _x000D_
                   position: absolute;_x000D_
                   left: 0px; _x000D_
                   top: 0px;" _x000D_
            height="300" _x000D_
            width="300"></canvas>_x000D_
</div>_x000D_
</body>_x000D_
</html>

Here's the jsfiddle: https://jsfiddle.net/68vxqyak/1/

You can use MD5 hash function to check if two files are the same, with this you can not see the differences in a low level, but is a quick way to compare two files.

md5 <filename1>
md5 <filename2>

If both MD5 hashes (the command output) are the same, then, the two files are not different.

If you are getting this in a C# projet, check if you are running in 64-bit or 32-bit mode with the following code:

        if (IntPtr.Size == 4)
        {
            Console.WriteLine("This is 32-Bit!");
        }
        else if (IntPtr.Size == 8)
        {
            Console.WriteLine("This is 64 Bit!");
        }

If you find that you are running in 64-Bit mode, you may want to try switching to 32-Bit (or vice versa). You can follow this guide to force your application to run as 64 or 32 bit (X64 and X86 respectively). You have to make sure that Platform Target in your project properties is not set to Any CPU and that it is explicitley set.

Switching that option from Any CPU to X86 resolved my error and I was able to connect to the Oracle provider.

I see some people asking how to do this using the angular.controller method with minification friendly dependency injection. Since I just got this working I felt obliged to come back and help. Here's my solution (adopted from the original question and Misko's answer):

angular.module('phonecat', ['phonecatFilters', 'phonecatServices', 'phonecatDirectives']).
  config(['$routeProvider', function($routeProvider) {
    $routeProvider.
      when('/phones', {
        templateUrl: 'partials/phone-list.html', 
        controller: PhoneListCtrl, 
        resolve: { 
            phones: ["Phone", "$q", function(Phone, $q) {
                var deferred = $q.defer();
                Phone.query(function(successData) {
                  deferred.resolve(successData); 
                }, function(errorData) {
                  deferred.reject(); // you could optionally pass error data here
                });
                return deferred.promise;
             ]
            },
            delay: ["$q","$defer", function($q, $defer) {
               var delay = $q.defer();
               $defer(delay.resolve, 1000);
               return delay.promise;
              }
            ]
        },

        }).
      when('/phones/:phoneId', {
        templateUrl: 'partials/phone-detail.html', 
        controller: PhoneDetailCtrl, 
        resolve: PhoneDetailCtrl.resolve}).
      otherwise({redirectTo: '/phones'});
}]);

angular.controller("PhoneListCtrl", [ "$scope", "phones", ($scope, phones) {
  $scope.phones = phones;
  $scope.orderProp = 'age';
}]);

Since this code is derived from the question/most popular answer it is untested, but it should send you in the right direction if you already understand how to make minification friendly angular code. The one part that my own code didn't requires was an injection of "Phone" into the resolve function for 'phones', nor did I use any 'delay' object at all.

I also recommend this youtube video http://www.youtube.com/watch?v=P6KITGRQujQ&list=UUKW92i7iQFuNILqQOUOCrFw&index=4&feature=plcp , which helped me quite a bit

Should it interest you I've decided to also paste my own code (Written in coffeescript) so you can see how I got it working.

FYI, in advance I use a generic controller that helps me do CRUD on several models:

appModule.config ['$routeProvider', ($routeProvider) ->
  genericControllers = ["boards","teachers","classrooms","students"]
  for controllerName in genericControllers
    $routeProvider
      .when "/#{controllerName}/",
        action: 'confirmLogin'
        controller: 'GenericController'
        controllerName: controllerName
        templateUrl: "/static/templates/#{controllerName}.html"
        resolve:
          items : ["$q", "$route", "$http", ($q, $route, $http) ->
             deferred = $q.defer()
             controllerName = $route.current.controllerName
             $http(
               method: "GET"
               url: "/api/#{controllerName}/"
             )
             .success (response) ->
               deferred.resolve(response.payload)
             .error (response) ->
               deferred.reject(response.message)

             return deferred.promise
          ]

  $routeProvider
    .otherwise
      redirectTo: '/'
      action: 'checkStatus'
]

appModule.controller "GenericController", ["$scope", "$route", "$http", "$cookies", "items", ($scope, $route, $http, $cookies, items) ->

  $scope.items = items
      #etc ....
    ]

boolean is a primitive type, and therefore can not be null.

Its boxed type, Boolean, can be null.

The function is probably returning a Boolean as opposed to a boolean, so assigning the result to a Boolean-type variable will allow you to test for nullity.

You should now use the .on() function to bind events.

use:

var parsedobj = jQuery.parseJSON( jsonObj);

This will only be useful if you don't need the format to stay in string. otherwise you'd have to convert this back to JSON using the JSON library.

SELECT COUNT(*), table1.category_id, table2.category_name 
FROM table1 
INNER JOIN table2 ON table1.category_id=table2.category_id 
WHERE table1.colour <> 'red'
GROUP BY table1.category_id, table2.category_name 

This might work for you:

OIFS=$IFS; IFS=$'\n'; array=($(ls -ls)); IFS=$OIFS; echo "${array[1]}"

For that you can use the Application object.

Startup path, just the folder, use Application.StartupPath()

Dim appPath As String = Application.StartupPath()

Full .exe path, including the program.exe name on the end:, use Application.ExecutablePath()

Dim exePath As String = Application.ExecutablePath()

Listing the available tags in Git is straightforward. Just type git tag (with optional -l or --list).

$ git tag
v5.5
v6.5

You can also search for tags that match a particular pattern.

$ git tag -l "v1.8.5*"
v1.8.5
v1.8.5-rc0
v1.8.5-rc1
v1.8.5-rc2

Getting latest tag on git repository

The command finds the most recent tag that is reachable from a commit. If the tag points to the commit, then only the tag is shown. Otherwise, it suffixes the tag name with the number of additional commits on top of the tagged object and the abbreviated object name of the most recent commit.

git describe

With --abbrev set to 0, the command can be used to find the closest tagname without any suffix:

git describe --abbrev=0

Other examples:

git describe --abbrev=0 --tags # gets tag from current branch
git describe --tags `git rev-list --tags --max-count=1` // gets tags across all branches, not just the current branch

How to prune local git tags that don't exist on remote

To put it simple, if you are trying to do something like git fetch -p -t, it will not work starting with git version 1.9.4.

However, there is a simple workaround that still works in latest versions:

git tag -l | xargs git tag -d  // remove all local tags
git fetch -t                   // fetch remote tags

Since static variables are shared by all instances of the class. For example if you are having following code

class Class<T> {
  static void doIt(T object) {
    // using T here 
  }
}

T is available only after an instance is created. But static methods can be used even before instances are available. So, Generic type parameters cannot be referenced inside static methods and variables

Read this Bug Issue: http://bugs.jquery.com/ticket/11586

Quoting the RFC 2616 Fielding

The DELETE method requests that the origin server delete the resource identified by the Request-URI.

So you need to pass the data in the URI

$.ajax({
    url: urlCall + '?' + $.param({"Id": Id, "bolDeleteReq" : bolDeleteReq}),
    type: 'DELETE',
    success: callback || $.noop,
    error: errorCallback || $.noop
});

To add to accepted answer: (from apple developer documentation) "When you open the URL built from this string (openSettingsURLString), the system launches the Settings app and displays the app’s custom settings, if it has any." So, if you want to open settings for your app, create your own Settings.bundle.

Here are some examples for insert ... on conflict ... (pg 9.5+) :

• Insert, on conflict - do nothing.

  insert into dummy(id, name, size) values(1, 'new_name', 3)
  on conflict do nothing;`  
  

• Insert, on conflict - do update, specify conflict target via column.

  insert into dummy(id, name, size) values(1, 'new_name', 3)
  on conflict(id)
  do update set name = 'new_name', size = 3;  
  

• Insert, on conflict - do update, specify conflict target via constraint name.

  insert into dummy(id, name, size) values(1, 'new_name', 3)
  on conflict on constraint dummy_pkey
  do update set name = 'new_name', size = 4;
  

Marco13 already provided an excellent answer.

In case you are in search for a way to use the GPU without implementing CUDA/OpenCL kernels, I would like to add a reference to the finmath-lib-cuda-extensions (finmath-lib-gpu-extensions) http://finmath.net/finmath-lib-cuda-extensions/ (disclaimer: I am the maintainer of this project).

The project provides an implementation of "vector classes", to be precise, an interface called RandomVariable, which provides arithmetic operations and reduction on vectors. There are implementations for the CPU and GPU. There are implementation using algorithmic differentiation or plain valuations.

The performance improvements on the GPU are currently small (but for vectors of size 100.000 you may get a factor > 10 performance improvements). This is due to the small kernel sizes. This will improve in a future version.

The GPU implementation use JCuda and JOCL and are available for Nvidia and ATI GPUs.

The library is Apache 2.0 and available via Maven Central.

In WPF an image is typically loaded from a Stream or an Uri.

BitmapImage supports both and an Uri can even be passed as constructor argument:

var uri = new Uri("http://...");
var bitmap = new BitmapImage(uri);

If the image file is located in a local folder, you would have to use a file:// Uri. You could create such a Uri from a path like this:

var path = Path.Combine(Environment.CurrentDirectory, "Bilder", "sas.png");
var uri = new Uri(path);

If the image file is an assembly resource, the Uri must follow the the Pack Uri scheme:

var uri = new Uri("pack://application:,,,/Bilder/sas.png");

In this case the Visual Studio Build Action for sas.png would have to be Resource.

Once you have created a BitmapImage and also have an Image control like in this XAML

<Image Name="image1" />

you would simply assign the BitmapImage to the Source property of that Image control:

image1.Source = bitmap;

To allow guest access remotely, write this

[{rabbit, [{loopback_users, []}]}].

to here

c:\Users\[your user name]\AppData\Roaming\RabbitMQ\rabbitmq.config

then restart the rabbitmq windows service (Source https://www.rabbitmq.com/access-control.html)

Rxjs v 6.*

It got simplified with newer version of rxjs .

1) Operators

import {map} from 'rxjs/operators';

2) Others

import {Observable,of, from } from 'rxjs';

Instead of chaining we need to pipe . For example

Old syntax :

source.map().switchMap().subscribe()

New Syntax:

source.pipe(map(), switchMap()).subscribe()

Note: Some operators have a name change due to name collisions with JavaScript reserved words! These include:

do -> tap,

catch -> catchError

switch -> switchAll

finally -> finalize

Rxjs v 5.*

I am writing this answer partly to help myself as I keep checking docs everytime I need to import an operator . Let me know if something can be done better way.

1) import { Rx } from 'rxjs/Rx';

This imports the entire library. Then you don't need to worry about loading each operator . But you need to append Rx. I hope tree-shaking will optimize and pick only needed funcionts( need to verify ) As mentioned in comments , tree-shaking can not help. So this is not optimized way.

public cache = new Rx.BehaviorSubject('');

Or you can import individual operators .

This will Optimize your app to use only those files :

2) import { _______ } from 'rxjs/_________';

This syntax usually used for main Object like Rx itself or Observable etc.,

Keywords which can be imported with this syntax

 Observable, Observer, BehaviorSubject, Subject, ReplaySubject

3) import 'rxjs/add/observable/__________';

Update for Angular 5

With Angular 5, which uses rxjs 5.5.2+

import { empty } from 'rxjs/observable/empty';
import { concat} from 'rxjs/observable/concat';

These are usually accompanied with Observable directly. For example

Observable.from()
Observable.of()

Other such keywords which can be imported using this syntax:

concat, defer, empty, forkJoin, from, fromPromise, if, interval, merge, of, 
range, throw, timer, using, zip

4) import 'rxjs/add/operator/_________';

Update for Angular 5

With Angular 5, which uses rxjs 5.5.2+

import { filter } from 'rxjs/operators/filter';
import { map } from 'rxjs/operators/map';

These usually come in the stream after the Observable is created. Like flatMap in this code snippet:

Observable.of([1,2,3,4])
          .flatMap(arr => Observable.from(arr));

Other such keywords using this syntax:

audit, buffer, catch, combineAll, combineLatest, concat, count, debounce, delay, 
distinct, do, every, expand, filter, finally, find , first, groupBy,
ignoreElements, isEmpty, last, let, map, max, merge, mergeMap, min, pluck, 
publish, race, reduce, repeat, scan, skip, startWith, switch, switchMap, take, 
takeUntil, throttle, timeout, toArray, toPromise, withLatestFrom, zip

FlatMap: flatMap is alias to mergeMap so we need to import mergeMap to use flatMap.

Note for /add imports :

We only need to import once in whole project. So its advised to do it at a single place. If they are included in multiple files, and one of them is deleted, the build will fail for wrong reasons.

via dict.update() function

In case you need a declarative solution, you can use dict.update() to change values in a dict.

Either like this:

my_dict.update({'key1': 'value1', 'key2': 'value2'})

or like this:

my_dict.update(key1='value1', key2='value2')

via dictionary unpacking

Since Python 3.5 you can also use dictionary unpacking for this:

my_dict = { **my_dict, 'key1': 'value1', 'key2': 'value2'}

Note: This creates a new dictionary.

via merge operator or update operator

Since Python 3.9 you can also use the merge operator on dictionaries:

my_dict = my_dict | {'key1': 'value1', 'key2': 'value2'}

Note: This creates a new dictionary.

Or you can use the update operator:

my_dict |= {'key1': 'value1', 'key2': 'value2'}

There is no tuple type in Go, and you are correct, the multiple values returned by functions do not represent a first-class object.

Nick's answer shows how you can do something similar that handles arbitrary types using interface{}. (I might have used an array rather than a struct to make it indexable like a tuple, but the key idea is the interface{} type)

My other answer shows how you can do something similar that avoids creating a type using anonymous structs.

These techniques have some properties of tuples, but no, they are not tuples.

This is the solution that may useful for u

Class Form {
# Declare the input as property
private $Input = [];

# Then push the array to it
public function addTextField($class,$id){
    $this->Input ['type'][] = 'text';
    $this->Input ['class'][] = $class;
    $this->Input ['id'][] = $id;
}

}

$form = new Form();
$form->addTextField('myclass1','myid1');
$form->addTextField('myclass2','myid2');
$form->addTextField('myclass3','myid3');

When you dump it. The result like this

array (size=3)
  'type' => 
    array (size=3)
      0 => string 'text' (length=4)
      1 => string 'text' (length=4)
      2 => string 'text' (length=4)
  'class' => 
    array (size=3)
      0 => string 'myclass1' (length=8)
      1 => string 'myclass2' (length=8)
      2 => string 'myclass3' (length=8)
  'id' => 
    array (size=3)
      0 => string 'myid1' (length=5)
      1 => string 'myid2' (length=5)
      2 => string 'myid3' (length=5)

You can use something called Dash: Offline API Documentation for Mac. For Windows and Linux you have an alternative called Zeal.

Both of them are very similar. And you can get offline documentation for most of the APIs out there like Java, android, Angular, HTML5 etc .. almost everything.

I have also written a post on How to install Zeal on Ubuntu 14.04

I think this need to be run from the Management Shell rather than the console, it sounds like the module isn't being imported into the Powershell console. You can add the module by running:

Add-PSSnapin Microsoft.Sharepoint.Powershell

in the Powershell console.

One possible explanation is a database trigger that fires for each DROP TABLE statement. To find the trigger, query the _TRIGGERS dictionary views:

select * from all_triggers
where trigger_type in ('AFTER EVENT', 'BEFORE EVENT')

disable any suspicious trigger with

   alter trigger <trigger_name> disable;

and try re-running your DROP TABLE statement

If you are using a console application and you are pumping messages, can't you use the WM_QUIT message?

Try this

For red color,

<string name="hello_worldRed"><![CDATA[<b><font color=#FF0000>Hello world!</font></b>]]></string>

For blue,

<string name="hello_worldBlue"><![CDATA[<b><font color=#0000FF>Hello world!</font></b>]]></string>

In java code,

//red color text
TextView redColorTextView = (TextView)findViewById(R.id.redText);
String redString = getResources().getString(R.string.hello_worldRed)
redColorTextView.setText(Html.fromHtml(redString));

//Blue color text
TextView blueColorTextView = (TextView)findViewById(R.id.blueText);
String blueString = getResources().getString(R.string.hello_worldBlue)
blueColorTextView.setText(Html.fromHtml(blueString));

jQuery has a function that can do this:

1. include the following script in your head:

   <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js"></script>
   

   (or just download the jQuery.js file online and include it locally)

2. use this script to toggle the check box when the input is clicked:

   var toggle = false;
   $("#INPUTNAMEHERE").click(function() {
           $("input[type=checkbox]").attr("checked",!toggle);
           toggle = !toggle;
   }); 
   

That should do what you want if I understood what you were trying to do.

If you're using MySQL, there is a method REGEXP that you can use...

http://dev.mysql.com/doc/refman/5.1/en/regexp.html#operator_regexp

So then you would use:

SELECT * FROM `shirts` WHERE `colors` REGEXP '\b1\b'

Code check:

This is offtopic here but the people over at CodeReview are more than happy to help you.

I strongly suggest you to do so, there are several things that need attention in your code. Likewise I suggest that you do start reading tutorials since there is really no good reason not to do so.

Lists:

As you said yourself: you need a list of items. The way it is now you only store a reference to one item. Lucky there is exactly that to hold a group of related objects: a List.

Lists are very straightforward to use but take a look at the related documentation anyway.

A very simple example to keep multiple bikes in a list:

List<Motorbike> bikes = new List<Motorbike>();

bikes.add(new Bike { make = "Honda", color = "brown" });
bikes.add(new Bike { make = "Vroom", color = "red" });

And to iterate over the list you can use the foreach statement:

foreach(var bike in bikes) {
     Console.WriteLine(bike.make);
}

There could be many answers for this depending on the length of the list and the performance. One very simple way which I can think without thinking of the performance is this:

a = [1, 2, 3, 4]
a = [sum(a[0:x:1]) for x in range(len(a)+1)][1:]
print(a)

[1, 3, 6, 10]

This is by using list comprehension and this may work fairly well it is just that here I am adding over the subarray many times, you could possibly improvise on this and make it simple!

Cheers to your endeavor!

TL;DR

You want this:

AAPL:
  - shares: -75.088
    date: 11/27/2015
  - shares: 75.088
    date: 11/26/2015

Mappings

The YAML equivalent of a JSON object is a mapping, which looks like these:

# flow style
{ foo: 1, bar: 2 }

# block style
foo: 1
bar: 2

Note that the first characters of the keys in a block mapping must be in the same column. To demonstrate:

# OK
   foo: 1
   bar: 2

# Parse error
   foo: 1
    bar: 2

Sequences

The equivalent of a JSON array in YAML is a sequence, which looks like either of these (which are equivalent):

# flow style
[ foo bar, baz ]

# block style
- foo bar
- baz

In a block sequence the -s must be in the same column.

JSON to YAML

Let's turn your JSON into YAML. Here's your JSON:

{"AAPL": [
  {
    "shares": -75.088,
    "date": "11/27/2015"
  },
  {
    "shares": 75.088,
    "date": "11/26/2015"
  },
]}

As a point of trivia, YAML is a superset of JSON, so the above is already valid YAML—but let's actually use YAML's features to make this prettier.

Starting from the inside out, we have objects that look like this:

{
  "shares": -75.088,
  "date": "11/27/2015"
}

The equivalent YAML mapping is:

shares: -75.088
date: 11/27/2015

We have two of these in an array (sequence):

- shares: -75.088
  date: 11/27/2015
- shares: 75.088
  date: 11/26/2015

Note how the -s line up and the first characters of the mapping keys line up.

Finally, this sequence is itself a value in a mapping with the key AAPL:

AAPL:
  - shares: -75.088
    date: 11/27/2015
  - shares: 75.088
    date: 11/26/2015

Parsing this and converting it back to JSON yields the expected result:

{
  "AAPL": [
    {
      "date": "11/27/2015", 
      "shares": -75.088
    }, 
    {
      "date": "11/26/2015", 
      "shares": 75.088
    }
  ]
}

You can see it (and edit it interactively) here.

The page you linked states

If an explicit array size is specified, but an shorter initiliazation list is specified, the unspecified elements are set to zero.

Speed issue: Any differences would be negligible for arrays this small. If you work with large arrays and speed is much more important than size, you can have a const array of the default values (initialized at compile time) and then memcpy them to the modifiable array.

HTML:

<body ng-app="App">
    <div ng-controller="testController" >
        <input type="hidden" id="testInput" ng-model="testInput" ng-init="testInput=123" />
    </div>
    {{ testInput }}
</body>

JS:

angular.module('App', []);

testController = function ($scope) {
    console.log('test');
    $scope.$watch('testInput', testShow, true);
    function testShow() {
      console.log($scope.testInput);
    }
}

Fiddle

I found 100% working Concept for me:

# Options is required by Many Hosting
Options +MultiViews

RewriteEngine on

# For .php & .html URL's:
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^([^\.]+)$ $1.php [NC,L]
RewriteRule ^([^\.]+)$ $1.html [NC,L]

Use this code in Root of your website .htaccess file like :

offline - wamp\www\YourWebDir

online - public_html/

If it doesn't work correct, then change the settings of your Wamp Server: 1) Left click WAMP icon 2) Apache 3) Apache Modules 4) Left click rewrite_module

Your attempt at an athlete class seems to be dealing with a group of athletes, which is a design fault.

Define a class to represent a single athlete, with fields that represent the athlete's attributes:

public class Athlete {
    private final String name;
    private final String country;
    private List<Performance> performances = new ArrayList<Performance>();
    // other fields as required

    public Athlete (String name, String country) {
        this.name = name;
        this.country = country;
    }
    // getters omitted

    public List<Performance> getPerformances() {
        return performances;
    }

    public Performance perform(Dive dive) {
        // not sure what your intention is here, but something like this:
        Performance p = new Performance(dive, this);
        // add new performance to list
        performances.add(p);
        return p;
    }
}

Then your main method would use ti like this:

public class Assignment1 {
    public static void main(String[] args) {
        String[] name = {"Art", "Dan", "Jen"};
        String[] country = {"Canada", "Germant", "USA"};
        Dive[] dive = new Dive[]{new Dive("somersault"), new Dive("foo"), new Dive("bar")};
        for (int i = 0; i < name.length; i++) {
            Athlete athlete = new Athlete(name[i], country[i]);
            Performance performance = athlete.perform(dive[i]);   
            // do something with athlete and/or performance
        }
    }
}

//DIVISORS IN TIME COMPLEXITY sqrt(n)

#include<bits/stdc++.h>
using namespace std;

#define ll long long

int main()
{
    ll int n;
    cin >> n;

    for(ll i = 2;  i <= sqrt(n); i++)
    {
        if (n%i==0)
        {
            if (n/i!=i)
                cout << i << endl << n/i<< endl;
            else
                cout << i << endl;
        }
    }
}

In my case, I got this while overloading

ostream & operator << (ostream &out, const MyClass &obj)

and forgot to return out. In other systems this just generates a warning, but on macos it also generated an error (although it seems to print correctly).

The error was resolved by adding the correct return value. In my case, adding the -mmacosx-version-min flag had no effect.

FOR is essentially iterating over the "lines" in the data set. In this case, there is one line that contains the path. The "delims=;" is just telling it to separate on semi-colons. If you change the body to echo %%g,%%h,%%i,%%j,%%k you'll see that it is treating the input as a single line and breaking it into multiple tokens.

Two ways to get this done:

Collections.sort(myArray)

given elements inside myArray implements Comparable

Second

Collections.sort(myArray, new MyArrayElementComparator());

where MyArrayElementComparator is Comparator for elements inside myArray

Spring is a good alternative to Enterprise JavaBeans (EJB) technology. It also has web framework and web services framework component.

This might be trivial and not related to the OP's question, but I often made this mistaken at the beginning when I was learning scripting

VAR_NAME = $(hostname)
echo "the hostname is ${VAR_NAME}"  

This will produce 'command not found' response. The correct way is to eliminate the spaces

VAR_NAME=$(hostname)

I had a fair amount of difficulty with a solution something very similar to this: trying to have two buttons in a TableRow, with each being half the screen width. For whatever reason, the left button would always be about 70% of the width, and the right button 30%. Calling table_layout.setStretchAllColumns(true) had no effect, nor did setting the button's width to half the screen, nor setting their layout weight.

The solution I ended up with was nesting a LinearLayout in the TableRows, which did take into account the value of the buttons' width.

    TableLayout layout = new TableLayout(this);
    TableRow top_row = new TableRow(this);
    left_button = styleButton();
    right_button = styleButton();
    LinearLayout toprow_layout = new LinearLayout (this);
    toprow_layout.setOrientation(LinearLayout.HORIZONTAL);
    toprow_layout.addView (left_button);
    toprow_layout.addView(right_button);
    toprow.addView(top_layout);
    layout.addView(top_row)

    private Button styleButton() {
            Button btn = new Button (this);
            android.view.Display display = ((android.view.WindowManager)getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();      
            btn.setWidth((int)(display.getWidth()/2));    // set width to half
            btn.setHeight(((int)display.getHeight()/6));  // set height to whatevs
            btn.setText("foo");
            return btn;
        }

Unit testing is about the output you get from a function/method/application. It does not matter at all how the result is produced, it just matters that it is correct. Therefore, your approach of counting calls to inner methods and such is wrong. What I tend to do is sit down and write what a method should return given certain input values or a certain environment, then write a test which compares the actual value returned with what I came up with.

Our resident maestro Jon Skeet has a great Range Class that can do this for DateTimes and other types.

yes you need to use a having clause after the Group by clause , as the where is just to filter the data on simple parameters , but group by followed by a Having statement is the idea to group the data and filter it on basis of some aggregate function......

Importing all the classes in a package is considered a blind approach. A major reason for this is that it clutters the class namespace and could lead to conflicts between classes in different packages with the same name.

Specifically populating the necessary classes avoids that problem and clearly shows which versions were wanted. This is good for code maintainability.

As, @Shaswat Rungta said: "I think the question is more about how to add it after the installation is over."

On my PC(Windows 7) I think that the command "Git Bash here" disappeard after I installed Visual Studio 2017.

I fixt this by downloading and installing Git again.

With the introduction of C# 6 (in VS 2015), you can now have get-only automatic properties, in which the implicit backing field is readonly (i.e. values can be assigned in the constructor but not elsewhere):

public string Name { get; }

public Customer(string name)  // Constructor
{
    Name = name;
}

private void SomeFunction()
{
    Name = "Something Else";  // Compile-time error
}

And you can now also initialise properties (with or without a setter) inline:

public string Name { get; } = "Boris";

Referring back to the question, this gives you the advantages of option 2 (public member is a property, not a field) with the brevity of option 1.

Unfortunately, it doesn't provide a guarantee of immutability at the level of the public interface (as in @CodesInChaos's point about self-documentation), because to a consumer of the class, having no setter is indistinguishable from having a private setter.

Declare

private static final String TIME24HOURS_PATTERN = "([01]?[0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9]";

public boolean validate(final String time) {
    pattern = Pattern.compile(TIME24HOURS_PATTERN);
    matcher = pattern.matcher(time);
    return matcher.matches();
}

This method return "true" when String match with the Regular Expression.

I have just used dompdf and the code was a little different but it worked.

Here it is:

require_once("./pdf/dompdf_config.inc.php");
$files = glob("./pdf/include/*.php");
foreach($files as $file) include_once($file);

$html =
      '<html><body>'.
      '<p>Put your html here, or generate it with your favourite '.
      'templating system.</p>'.
      '</body></html>';

    $dompdf = new DOMPDF();
    $dompdf->load_html($html);
    $dompdf->render();
    $output = $dompdf->output();
    file_put_contents('Brochure.pdf', $output);

Only difference here is that all of the files in the include directory are included.

Other than that my only suggestion would be to specify a full directory path for writing the file rather than just the filename.

This is a great chance to introduce you to the File Exchange. Though the organization of late has suffered from some very unfortunately interface design choices, it is still a great resource for pre-packaged solutions to common problems. Though many here have given you the gory details of how to achieve this (@prm!), I had a similar need a few years ago and found that addaxis worked very well. (It was a File Exchange pick of the week at one point!) It has inspired later, probably better mods. Here is some example output:

addaxis example http://www.mathworks.com/matlabcentral/fx_files/9016/1/addaxis_screenshot.jpg

I just searched for "plotyy" at File Exchange.

Though understanding what's going on in important, sometimes you just need to get things done, not do them yourself. Matlab Central is great for that.

Why you don't just use Concat?

Concat is a part of linq and more efficient than doing an AddRange()

in your case:

List<Person> list1 = ...
List<Person> list2 = ...
List<Person> total = list1.Concat(list2);

For PHP 5.5.27 security update

$file = $path.$filename;
$content = file_get_contents( $file);
$content = chunk_split(base64_encode($content));
$uid = md5(uniqid(time()));
$name = basename($file);

// header
$header = "From: ".$from_name." <".$from_mail.">\r\n";
$header .= "Reply-To: ".$replyto."\r\n";
$header .= "MIME-Version: 1.0\r\n";
$header .= "Content-Type: multipart/mixed; boundary=\"".$uid."\"\r\n\r\n";

// message & attachment
$nmessage = "--".$uid."\r\n";
$nmessage .= "Content-type:text/plain; charset=iso-8859-1\r\n";
$nmessage .= "Content-Transfer-Encoding: 7bit\r\n\r\n";
$nmessage .= $message."\r\n\r\n";
$nmessage .= "--".$uid."\r\n";
$nmessage .= "Content-Type: application/octet-stream; name=\"".$filename."\"\r\n";
$nmessage .= "Content-Transfer-Encoding: base64\r\n";
$nmessage .= "Content-Disposition: attachment; filename=\"".$filename."\"\r\n\r\n";
$nmessage .= $content."\r\n\r\n";
$nmessage .= "--".$uid."--";

if (mail($mailto, $subject, $nmessage, $header)) {
    return true; // Or do something here
} else {
  return false;
}

Generally, you can design a class that behaves like a dictionary, mainly be implementing the methods __contains__, __getitem__, __delitem__, __setitem__ and some more. That class can have any behaviour you like, for example prividing a sorted iterator over the keys ...

row = $("body").find('#' + row_id);

More importantly doing the additional body.find has no impact on performance. The proper way to do this is simply:

row = $('#' + row_id);

In my case i haven't given the

orientation of LinearLayout(ScrollView's Child)

So by default it takes horizontal, but scrollview scrols vertically, so please check if 'android:orientation="vertical"' is set to your ScrollView's Child(In the case of LinearLayout).

This was my case hopes it helps somebody

.

I would like to show you about how to color code. There is also a game to it if you would like to play it down below. Copy and paste if you would like and make sure to have a good day everyone! Also, this is for Python 3, not 2. ( Game )

   # The Color Game!
# Thank you for playing this game.
# Hope you enjoy and please do not copy it. Thank you!

#

import colorama
from colorama import Fore
score = 0

def Check_Answer(answer):
    if (answer == "no"):
        print('correct')
        return True
    else:
        print('wrong')

answer = input((Fore.RED + "This is green."))
if Check_Answer(answer) == True:
    score = score + 1
else:
    pass

answer = input((Fore.BLACK + "This is red."))
if Check_Answer(answer) == True:
    score = score + 1
else:
    pass

answer = input((Fore.BLUE + "This is black."))

if Check_Answer(answer) == True:
    score = score + 1
else:
    pass

print('Your Score is ', score)

Now for the color coding. It also comes with a list of colors YOU can try.

# Here is how to color code in Python 3!
# Some featured color codes are : RED, BLUE, GREEN, YELLOW, OR WHITE. I don't think purple or pink are not out yet.
# Here is how to do it. (Example is down below!)

import colorama
from colorama import Fore
print(Fore.RED + "This is red..")

In Python 3 there is an exit() function:

elif choice == "q":
    exit()

As of 2015, it now just works.

<input type="file">

This will ask user for the upload of any file. On iOS 8.x this can be a camera video, camera photo, or a photo/video from Photo Library.

<input type="file" accept="image/*">

This is as above, but limits the uploads to photos only from camera or library, no videos.

In addition to Lee's answer, you may find more information about the real cause by switching to synchronous requests, as you'll get also an exception :

function request(url) {
    var request = new XMLHttpRequest();
    try {
        request.open('GET', url, false);
        request.send(null);
    } catch (e) {
        console.log(url + ': ' + e);
    }
}

For example :

NetworkError: A network error occurred.

Mindless passenger has a project that allows you to call a stored proc from entity frame work like this....

using (testentities te = new testentities())
{
    //-------------------------------------------------------------
    // Simple stored proc
    //-------------------------------------------------------------
    var parms1 = new testone() { inparm = "abcd" };
    var results1 = te.CallStoredProc<testone>(te.testoneproc, parms1);
    var r1 = results1.ToList<TestOneResultSet>();
}

... and I am working on a stored procedure framework (here) which you can call like in one of my test methods shown below...

[TestClass]
public class TenantDataBasedTests : BaseIntegrationTest
{
    [TestMethod]
    public void GetTenantForName_ReturnsOneRecord()
    {
        // ARRANGE
        const int expectedCount = 1;
        const string expectedName = "Me";

        // Build the paraemeters object
        var parameters = new GetTenantForTenantNameParameters
        {
            TenantName = expectedName
        };

        // get an instance of the stored procedure passing the parameters
        var procedure = new GetTenantForTenantNameProcedure(parameters);

        // Initialise the procedure name and schema from procedure attributes
        procedure.InitializeFromAttributes();

        // Add some tenants to context so we have something for the procedure to return!
        AddTenentsToContext(Context);

        // ACT
        // Get the results by calling the stored procedure from the context extention method 
        var results = Context.ExecuteStoredProcedure(procedure);

        // ASSERT
        Assert.AreEqual(expectedCount, results.Count);
    }
}

internal class GetTenantForTenantNameParameters
{
    [Name("TenantName")]
    [Size(100)]
    [ParameterDbType(SqlDbType.VarChar)]
    public string TenantName { get; set; }
}

[Schema("app")]
[Name("Tenant_GetForTenantName")]
internal class GetTenantForTenantNameProcedure
    : StoredProcedureBase<TenantResultRow, GetTenantForTenantNameParameters>
{
    public GetTenantForTenantNameProcedure(
        GetTenantForTenantNameParameters parameters)
        : base(parameters)
    {
    }
}

If either of those two approaches are any good?

select column1 as xyz,
      column2 as pqr,
.....

from TableName;

This is what I did and worked for me.

I want to undo the changes in multiple commits that I did for certain times and want to go to the previous commit point.

1. Go to Team -> Show History.
2. Right-click on the or range of revisions you want to ignore.
3. Select the "Revert changes" option.

This will run a reverse merge, undoing the changes in your working copy.

Just review the code and commit.

This is what worked for me.

$(window).bind("pageshow", function() {
    $("#id").val('');
    $("#another_id").val('');
});

I initially had this in the $(document).ready section of my jquery, which also worked. However, I heard that not all browsers fire $(document).ready on hitting back button, so I took it out. I don't know the pros and cons of this approach, but I have tested on multiple browsers and on multiple devices, and no issues with this solution were found.

Only solution that worked for me

$ sudo killall -u username && sudo deluser --remove-home -f username

The killall command is used if multiple processes are used by the user you want to delete.

The -f option forces the removal of the user account, even if the user is still logged in. It also forces deluser to remove the user's home directory and mail spool, even if another user uses the same home directory.

Please confirm that it works in the comments.

Open bash window. Preferably git bash. write

scp username@remote_ip:/directory_of_file/filename 'windows_location_you_want_to_store_the_file'

Example:

Suppose your username is jewel

your IP is 176.35.96.32

your remote file location is /usr/local/forme

your filename is logs.zip

and you want to store in your windows PC's D drive forme folder then the command will be

scp [email protected]:/usr/local/forme/logs.zip 'D:/forme'

**Keep the local file directory inside single quote.

p is the conversion specifier to print pointers. Use this.

int a = 42;

printf("%p\n", (void *) &a);

Remember that omitting the cast is undefined behavior and that printing with p conversion specifier is done in an implementation-defined manner.

Check chart.Boxplot from package PerformanceAnalytics. It lets you define the symbol to use for the mean of the distribution.

By default, the chart.Boxplot(data) command adds the mean as a red circle and the median as a black line.

Here is the output with sample data; MWE:

#install.packages(PerformanceAnalytics)    
library(PerformanceAnalytics)
chart.Boxplot(cars$speed)

You can also check for the PROCESSOR_ARCHITECTURE environment variable.

It either doesn't exist or is set to "x86" on 32-bit Windows.

private int GetOSArchitecture()
{
    string pa = 
        Environment.GetEnvironmentVariable("PROCESSOR_ARCHITECTURE");
    return ((String.IsNullOrEmpty(pa) || 
             String.Compare(pa, 0, "x86", 0, 3, true) == 0) ? 32 : 64);
}

for(;;) is for Arrays : [20,55,33]

for..in is for Objects : {x:20,y:55:z:33}

I think you can adapt the function to substract the two timestamps:

return  EXTRACT(MINUTE FROM 
  TO_TIMESTAMP(to_char(p_date1,'DD-MON-YYYY HH:MI:SS'),'DD-MON-YYYY HH24:MI:SS')
-
  TO_TIMESTAMP(to_char(p_date2,'DD-MON-YYYY HH:MI:SS'),'DD-MON-YYYY HH24:MI:SS')
);

I think you could simplify it by just using CAST(p_date as TIMESTAMP).

return  EXTRACT(MINUTE FROM cast(p_date1 as TIMESTAMP) - cast(p_date2 as TIMESTAMP));

Remember dates and timestamps are big ugly numbers inside Oracle, not what we see in the screen; we don't need to tell him how to read them. Also remember timestamps can have a timezone defined; not in this case.

<button>'s are in fact submit buttons, they have no other main functionality. You will have to set the type to button.
But if you bind your event handler like below, you target all buttons and do not have to do it manually for each button!

$('form button').on("click",function(e){
    e.preventDefault();
});

We can do same Springboard behavior using UICollectionView and for that we need to write code for custom layout.

I have achieved it with my custom layout class implementation with "SMCollectionViewFillLayout"

Code repository:

https://github.com/smindia1988/SMCollectionViewFillLayout

Output as below:

1.png

2_Code_H-Scroll_V-Fill.png

3_Output_H-Scroll_V-Fill.png

4_Code_H-Scroll_H-Fill.png

5_Output_H-Scroll_H-Fill.png

You can use numpy's polyfit. I use the following (you can safely remove the bit about coefficient of determination and error bounds, I just think it looks nice):

#!/usr/bin/python3

import numpy as np
import matplotlib.pyplot as plt
import csv

with open("example.csv", "r") as f:
    data = [row for row in csv.reader(f)]
    xd = [float(row[0]) for row in data]
    yd = [float(row[1]) for row in data]

# sort the data
reorder = sorted(range(len(xd)), key = lambda ii: xd[ii])
xd = [xd[ii] for ii in reorder]
yd = [yd[ii] for ii in reorder]

# make the scatter plot
plt.scatter(xd, yd, s=30, alpha=0.15, marker='o')

# determine best fit line
par = np.polyfit(xd, yd, 1, full=True)

slope=par[0][0]
intercept=par[0][1]
xl = [min(xd), max(xd)]
yl = [slope*xx + intercept  for xx in xl]

# coefficient of determination, plot text
variance = np.var(yd)
residuals = np.var([(slope*xx + intercept - yy)  for xx,yy in zip(xd,yd)])
Rsqr = np.round(1-residuals/variance, decimals=2)
plt.text(.9*max(xd)+.1*min(xd),.9*max(yd)+.1*min(yd),'$R^2 = %0.2f$'% Rsqr, fontsize=30)

plt.xlabel("X Description")
plt.ylabel("Y Description")

# error bounds
yerr = [abs(slope*xx + intercept - yy)  for xx,yy in zip(xd,yd)]
par = np.polyfit(xd, yerr, 2, full=True)

yerrUpper = [(xx*slope+intercept)+(par[0][0]*xx**2 + par[0][1]*xx + par[0][2]) for xx,yy in zip(xd,yd)]
yerrLower = [(xx*slope+intercept)-(par[0][0]*xx**2 + par[0][1]*xx + par[0][2]) for xx,yy in zip(xd,yd)]

plt.plot(xl, yl, '-r')
plt.plot(xd, yerrLower, '--r')
plt.plot(xd, yerrUpper, '--r')
plt.show()

based on other answers this is my current working implementation, which retrieves nested xml files in a root directory:

files = []
for root, dirnames, filenames in os.walk(myDir):
    files.extend(glob.glob(root + "/*.xml"))

I'm really having fun with python :)

<%@ Page Language="C#" AutoEventWireup="True" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">    
<head>
    <title> HtmlSelect Example </title>
    <script runat="server">
      void Button_Click (Object sender, EventArgs e)
      {
         Label1.Text = "Selected index: " + Select1.SelectedIndex.ToString()
                       + ", value: " + Select1.Value;    
      }    
   </script>    
</head>    
<body>    
   <form id="form1" runat="server">

      Select an item: 

      <select id="Select1" runat="server">    
         <option value="Text for Item 1" selected="selected"> Item 1 </option>
         <option value="Text for Item 2"> Item 2 </option>
         <option value="Text for Item 3"> Item 3 </option>
         <option value="Text for Item 4"> Item 4 </option>
      </select>

      <button onserverclick="Button_Click" runat="server" Text="Submit"/>

      <asp:Label id="Label1" runat="server"/>    
   </form>
</body>
</html>

Source from Microsoft. Hope this is helpful!

Jon's disassemblies show, that the difference between the two versions is that the fast version uses a pair of registers (esi,edi) to store one of the local variables where the slow version doesn't.

The JIT compiler makes different assumptions regarding register use for code that contains a try-catch block vs. code which doesn't. This causes it to make different register allocation choices. In this case, this favors the code with the try-catch block. Different code may lead to the opposite effect, so I would not count this as a general-purpose speed-up technique.

In the end, it's very hard to tell which code will end up running the fastest. Something like register allocation and the factors that influence it are such low-level implementation details that I don't see how any specific technique could reliably produce faster code.

For example, consider the following two methods. They were adapted from a real-life example:

interface IIndexed { int this[int index] { get; set; } }
struct StructArray : IIndexed { 
    public int[] Array;
    public int this[int index] {
        get { return Array[index]; }
        set { Array[index] = value; }
    }
}

static int Generic<T>(int length, T a, T b) where T : IIndexed {
    int sum = 0;
    for (int i = 0; i < length; i++)
        sum += a[i] * b[i];
    return sum;
}
static int Specialized(int length, StructArray a, StructArray b) {
    int sum = 0;
    for (int i = 0; i < length; i++)
        sum += a[i] * b[i];
    return sum;
}

One is a generic version of the other. Replacing the generic type with StructArray would make the methods identical. Because StructArray is a value type, it gets its own compiled version of the generic method. Yet the actual running time is significantly longer than the specialized method's, but only for x86. For x64, the timings are pretty much identical. In other cases, I've observed differences for x64 as well.

Apart from its primary use as a way to control the lifetime of system resources (completely covered by the awesome answer of Ian, kudos!), the IDisposable/using combo can also be used to scope the state change of (critical) global resources: the console, the threads, the process, any global object like an application instance.

I've written an article about this pattern: http://pragmateek.com/c-scope-your-global-state-changes-with-idisposable-and-the-using-statement/

It illustrates how you can protect some often used global state in a reusable and readable manner: console colors, current thread culture, Excel application object properties...

char * msg = new char[65546]();

It's known as value-initialisation, and was introduced in C++03. If you happen to find yourself trapped in a previous decade, then you'll need to use std::fill() (or memset() if you want to pretend it's C).

Note that this won't work for any value other than zero. I think C++0x will offer a way to do that, but I'm a bit behind the times so I can't comment on that.

UPDATE: it seems my ruminations on the past and future of the language aren't entirely accurate; see the comments for corrections.

.navbar {
   background-color: transparent;
   background: transparent;
   border-color: transparent;
}

.navbar li { color: #000 } 

http://bootply.com/106969

You can use iter to process lines as soon as the command outputs them: lines = iter(fd.readline, ""). Here's a full example showing a typical use case (thanks to @jfs for helping out):

from __future__ import print_function # Only Python 2.x
import subprocess

def execute(cmd):
    popen = subprocess.Popen(cmd, stdout=subprocess.PIPE, universal_newlines=True)
    for stdout_line in iter(popen.stdout.readline, ""):
        yield stdout_line 
    popen.stdout.close()
    return_code = popen.wait()
    if return_code:
        raise subprocess.CalledProcessError(return_code, cmd)

# Example
for path in execute(["locate", "a"]):
    print(path, end="")

What is Angular CLI Budgets? Budgets is one of the less known features of the Angular CLI. It’s a rather small but a very neat feature!

As applications grow in functionality, they also grow in size. Budgets is a feature in the Angular CLI which allows you to set budget thresholds in your configuration to ensure parts of your application stay within boundaries which you set — Official Documentation

Or in other words, we can describe our Angular application as a set of compiled JavaScript files called bundles which are produced by the build process. Angular budgets allows us to configure expected sizes of these bundles. More so, we can configure thresholds for conditions when we want to receive a warning or even fail build with an error if the bundle size gets too out of control!

How To Define A Budget? Angular budgets are defined in the angular.json file. Budgets are defined per project which makes sense because every app in a workspace has different needs.

Thinking pragmatically, it only makes sense to define budgets for the production builds. Prod build creates bundles with “true size” after applying all optimizations like tree-shaking and code minimization.

Oops, a build error! The maximum bundle size was exceeded. This is a great signal that tells us that something went wrong…

1. We might have experimented in our feature and didn’t clean up properly
2. Our tooling can go wrong and perform a bad auto-import, or we pick bad item from the suggested list of imports
3. We might import stuff from lazy modules in inappropriate locations
4. Our new feature is just really big and doesn’t fit into existing budgets

First Approach: Are your files gzipped?

Generally speaking, gzipped file has only about 20% the size of the original file, which can drastically decrease the initial load time of your app. To check if you have gzipped your files, just open the network tab of developer console. In the “Response Headers”, if you should see “Content-Encoding: gzip”, you are good to go.

How to gzip? If you host your Angular app in most of the cloud platforms or CDN, you should not worry about this issue as they probably have handled this for you. However, if you have your own server (such as NodeJS + expressJS) serving your Angular app, definitely check if the files are gzipped. The following is an example to gzip your static assets in a NodeJS + expressJS app. You can hardly imagine this dead simple middleware “compression” would reduce your bundle size from 2.21MB to 495.13KB.

const compression = require('compression')
const express = require('express')
const app = express()
app.use(compression())

Second Approach:: Analyze your Angular bundle

If your bundle size does get too big you may want to analyze your bundle because you may have used an inappropriate large-sized third party package or you forgot to remove some package if you are not using it anymore. Webpack has an amazing feature to give us a visual idea of the composition of a webpack bundle.

It’s super easy to get this graph.

1. npm install -g webpack-bundle-analyzer
2. In your Angular app, run ng build --stats-json (don’t use flag --prod). By enabling --stats-json you will get an additional file stats.json
3. Finally, run webpack-bundle-analyzer ./dist/stats.json and your browser will pop up the page at localhost:8888. Have fun with it.

ref 1: How Did Angular CLI Budgets Save My Day And How They Can Save Yours

ref 2: Optimize Angular bundle size in 4 steps

Introduction

You can get everything through ExternalContext. In JSF 1.x, you can get the raw HttpServletResponse object by ExternalContext#getResponse(). In JSF 2.x, you can use the bunch of new delegate methods like ExternalContext#getResponseOutputStream() without the need to grab the HttpServletResponse from under the JSF hoods.

On the response, you should set the Content-Type header so that the client knows which application to associate with the provided file. And, you should set the Content-Length header so that the client can calculate the download progress, otherwise it will be unknown. And, you should set the Content-Disposition header to attachment if you want a Save As dialog, otherwise the client will attempt to display it inline. Finally just write the file content to the response output stream.

Most important part is to call FacesContext#responseComplete() to inform JSF that it should not perform navigation and rendering after you've written the file to the response, otherwise the end of the response will be polluted with the HTML content of the page, or in older JSF versions, you will get an IllegalStateException with a message like getoutputstream() has already been called for this response when the JSF implementation calls getWriter() to render HTML.

Turn off ajax / don't use remote command!

You only need to make sure that the action method is not called by an ajax request, but that it is called by a normal request as you fire with <h:commandLink> and <h:commandButton>. Ajax requests and remote commands are handled by JavaScript which in turn has, due to security reasons, no facilities to force a Save As dialogue with the content of the ajax response.

In case you're using e.g. PrimeFaces <p:commandXxx>, then you need to make sure that you explicitly turn off ajax via ajax="false" attribute. In case you're using ICEfaces, then you need to nest a <f:ajax disabled="true" /> in the command component.

Generic JSF 2.x example

public void download() throws IOException {
    FacesContext fc = FacesContext.getCurrentInstance();
    ExternalContext ec = fc.getExternalContext();

    ec.responseReset(); // Some JSF component library or some Filter might have set some headers in the buffer beforehand. We want to get rid of them, else it may collide.
    ec.setResponseContentType(contentType); // Check http://www.iana.org/assignments/media-types for all types. Use if necessary ExternalContext#getMimeType() for auto-detection based on filename.
    ec.setResponseContentLength(contentLength); // Set it with the file size. This header is optional. It will work if it's omitted, but the download progress will be unknown.
    ec.setResponseHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\""); // The Save As popup magic is done here. You can give it any file name you want, this only won't work in MSIE, it will use current request URL as file name instead.

    OutputStream output = ec.getResponseOutputStream();
    // Now you can write the InputStream of the file to the above OutputStream the usual way.
    // ...

    fc.responseComplete(); // Important! Otherwise JSF will attempt to render the response which obviously will fail since it's already written with a file and closed.
}

Generic JSF 1.x example

public void download() throws IOException {
    FacesContext fc = FacesContext.getCurrentInstance();
    HttpServletResponse response = (HttpServletResponse) fc.getExternalContext().getResponse();

    response.reset(); // Some JSF component library or some Filter might have set some headers in the buffer beforehand. We want to get rid of them, else it may collide.
    response.setContentType(contentType); // Check http://www.iana.org/assignments/media-types for all types. Use if necessary ServletContext#getMimeType() for auto-detection based on filename.
    response.setContentLength(contentLength); // Set it with the file size. This header is optional. It will work if it's omitted, but the download progress will be unknown.
    response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\""); // The Save As popup magic is done here. You can give it any file name you want, this only won't work in MSIE, it will use current request URL as file name instead.

    OutputStream output = response.getOutputStream();
    // Now you can write the InputStream of the file to the above OutputStream the usual way.
    // ...

    fc.responseComplete(); // Important! Otherwise JSF will attempt to render the response which obviously will fail since it's already written with a file and closed.
}

Common static file example

In case you need to stream a static file from the local disk file system, substitute the code as below:

File file = new File("/path/to/file.ext");
String fileName = file.getName();
String contentType = ec.getMimeType(fileName); // JSF 1.x: ((ServletContext) ec.getContext()).getMimeType(fileName);
int contentLength = (int) file.length();

// ...

Files.copy(file.toPath(), output);

Common dynamic file example

In case you need to stream a dynamically generated file, such as PDF or XLS, then simply provide output there where the API being used expects an OutputStream.

E.g. iText PDF:

String fileName = "dynamic.pdf";
String contentType = "application/pdf";

// ...

Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(document, output);
document.open();
// Build PDF content here.
document.close();

E.g. Apache POI HSSF:

String fileName = "dynamic.xls";
String contentType = "application/vnd.ms-excel";

// ...

HSSFWorkbook workbook = new HSSFWorkbook();
// Build XLS content here.
workbook.write(output);
workbook.close();

Note that you cannot set the content length here. So you need to remove the line to set response content length. This is technically no problem, the only disadvantage is that the enduser will be presented an unknown download progress. In case this is important, then you really need to write to a local (temporary) file first and then provide it as shown in previous chapter.

Utility method

If you're using JSF utility library OmniFaces, then you can use one of the three convenient Faces#sendFile() methods taking either a File, or an InputStream, or a byte[], and specifying whether the file should be downloaded as an attachment (true) or inline (false).

public void download() throws IOException {
    Faces.sendFile(file, true);
}

Yes, this code is complete as-is. You don't need to invoke responseComplete() and so on yourself. This method also properly deals with IE-specific headers and UTF-8 filenames. You can find source code here.

What is the difference between left join and left outer join?

Nothing. LEFT JOIN and LEFT OUTER JOIN are equivalent.

Try:

$string = file_get_contents("/home/michael/test.json");
$json = json_decode($string, true);

foreach ($json as $key => $value) {
    if (!is_array($value)) {
        echo $key . '=>' . $value . '<br />';
    } else {
        foreach ($value as $key => $val) {
            echo $key . '=>' . $val . '<br />';
        }
    }
}

In my case I was following the documentation for react-fontawesome package, but they aren't clear about how to call the icon when setting the icons into the library

this is was what I was doing:

App.js file

import {faCoffee} from "@fortawesome/pro-light-svg-icons";
library.add(faSearch, faFileSearch, faCoffee);

Component file

<FontAwesomeIcon icon={"coffee"} />

But I was getting this error

Then I added the alias when passing the icon prop like:

<FontAwesomeIcon icon={["fal", "coffee"]} />

And it is working, you can find the prefix value in the icon.js file, in my case was: faCoffee.js

To remove element from array is easy just do the following

let array_splited = [].split('/');
array_splited.pop()
array_splited.join('/')

Code posted by you is correct and should have worked. But check exactly what you have in the char*. If the correct value is to big to be represented, functions will return a positive or negative HUGE_VAL. Check what you have in the char* against maximum values that float and double can represent on your computer.

Check this page for strtod reference and this page for atof reference.

I have tried the example you provided in both Windows and Linux and it worked fine.

Converting millis to datetime (UTC):

import datetime
time_in_millis = 1596542285000
dt = datetime.datetime.fromtimestamp(time_in_millis / 1000.0, tz=datetime.timezone.utc)

Converting datetime to string following the RFC3339 standard (used by Open API specification):

from rfc3339 import rfc3339
converted_to_str = rfc3339(dt, utc=True, use_system_timezone=False)
# 2020-08-04T11:58:05Z

Yep, you'll want to do something like this:

echo -n "Enter Fullname: " 
read fullname

Another option would be to have them supply this information on the command line. Getopts is your best bet there.

Using getopts in bash shell script to get long and short command line options

To add to some of the already excellent answers:

• Abstract classes let you provide some degree of implementation, interfaces are pure templates. An interface can only define functionality, it can never implement it.

• Any class that implements the interface commits to implementing all the methods it defines or it must be declared abstract.

• Interfaces can help to manage the fact that, like Java, PHP does not support multiple inheritance. A PHP class can only extend a single parent. However, you can make a class promise to implement as many interfaces as you want.

• type: for each interface it implements, the class takes on the corresponding type. Because any class can implement an interface (or more interfaces), interfaces effectively join types that are otherwise unrelated.

• a class can both extend a superclass and implement any number of interfaces:

  class SubClass extends ParentClass implements Interface1, Interface2 {
      // ...
  }
  

Please explain when I should use an interface and when I should use abstract class?

Use an interface when you need to provide only a template with no implementation what so ever, and you want to make sure any class that implements that interface will have the same methods as any other class that implements it (at least).

Use an abstract class when you want to create a foundation for other objects (a partially built class). The class that extends your abstract class will use some properties or methods defined/implemented:

<?php
// interface
class X implements Y { } // this is saying that "X" agrees to speak language "Y" with your code.

// abstract class
class X extends Y { } // this is saying that "X" is going to complete the partial class "Y".
?>

How I can change my abstract class in to an interface?

Here is a simplified case/example. Take out any implementation details out. For example, change your abstract class from:

abstract class ClassToBuildUpon {
    public function doSomething() {
          echo 'Did something.';
    }
}

to:

interface ClassToBuildUpon {
    public function doSomething();
}

One thing you should be very aware of when dealing with encryption:

Trying to be clever and inventing your own thing usually will leave you with something insecure.

You'd probably be best off using one of the cryptography extensions that come with PHP.

Table variables are automatically local and automatically dropped -- you don't have to worry about it.

(function ($) {
    $(document).ready(function(){
    $("#myspan").text("This is span");
  });
}(jQuery));

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<span id="myspan"> hereismytext </span>

user text() to change span text.

Here is a helper class I use often, in case any one ever comes back to this thread (I wanted to share it).

I use this for the simplicity of porting it into projects ready to use:

public class CSVHelper : List<string[]>
{
  protected string csv = string.Empty;
  protected string separator = ",";

  public CSVHelper(string csv, string separator = "\",\"")
  {
    this.csv = csv;
    this.separator = separator;

    foreach (string line in Regex.Split(csv, System.Environment.NewLine).ToList().Where(s => !string.IsNullOrEmpty(s)))
    {
      string[] values = Regex.Split(line, separator);

      for (int i = 0; i < values.Length; i++)
      {
        //Trim values
        values[i] = values[i].Trim('\"');
      }

      this.Add(values);
    }
  }
}

And use it like:

public List<Person> GetPeople(string csvContent)
{
  List<Person> people = new List<Person>();
  CSVHelper csv = new CSVHelper(csvContent);
  foreach(string[] line in csv)
  {
    Person person = new Person();
    person.Name = line[0];
    person.TelephoneNo = line[1];
    people.Add(person);
  }
  return people;
}

[Updated csv helper: bug fixed where the last new line character created a new line]

For integers you can use Integer.signum()

Returns the signum function of the specified int value. (The return value is -1 if the specified value is negative; 0 if the specified value is zero; and 1 if the specified value is positive.)

If you want a dynamic sized image to automatically fill the page as much as possible and still keep the image width/height-ratio, you could do as follows:

let width = doc.internal.pageSize.getWidth()
let height = doc.internal.pageSize.getHeight()

let widthRatio = width / canvas.width
let heightRatio = height / canvas.height

let ratio = widthRatio > heightRatio ? heightRatio : widthRatio

doc.addImage(
  canvas.toDataURL('image/jpeg', 1.0),
  'JPEG',
  0,
  0,
  canvas.width * ratio,
  canvas.height * ratio,
)

In the spirit of being complete, the answers that instruct you to use Guid.NewGuid() are correct.

In addressing your subsequent edit, you'll need to post the code for your RequestObject class. I'm suspecting that your guid property is not marked as a DataMember, and thus is not being serialized over the wire. Since default(Guid) is the same as new Guid() (i.e. all 0's), this would explain the behavior you're seeing.

In addition to the Python 2 approach here are the equivalents for Python 3:

# Create a range that does not contain 50
for i in [x for x in range(100) if x != 50]:
    print(i)

# Create 2 ranges [0,49] and [51, 100]
from itertools import chain
concatenated = chain(range(50), range(51, 100))
for i in concatenated:
    print(i)

# Create a iterator and skip 50
xr = iter(range(100))
for i in xr:
    print(i)
    if i == 49:
        next(xr)

# Simply continue in the loop if the number is 50
for i in range(100):
    if i == 50:
        continue
    print(i)

Ranges are lists in Python 2 and iterators in Python 3.

String s1 = "Welcome"; // Does not create a new instance  
String s2 = new String("Welcome"); // Creates two objects and one reference variable  

The easiest way is through keyword arguments:

class City():
  def __init__(self, city=None):
    pass

someCity = City(city="Berlin")

This is pretty basic stuff. Maybe look at the Python documentation?

This is because of implicit conversion. The variables b, c, d are of float type. But the / operator sees two integers it has to divide and hence returns an integer in the result which gets implicitly converted to a float by the addition of a decimal point. If you want float divisions, try making the two operands to the / floats. Like follows.

#include <stdio.h>

int main() {
    int a;
    float b, c, d;
    a = 750;
    b = a / 350.0f;
    c = 750;
    d = c / 350;
    printf("%.2f %.2f", b, d);
    // output: 2.14 2.14
    return 0;
}

According to the error message, you declared myLoc as a pointer to an NSInteger (NSInteger *myLoc) rather than an actual NSInteger (NSInteger myLoc). It needs to be the latter.

I think it works the other way

<#if object.attribute??>
   Do whatever you want....
</#if>

If object.attribute is NOT NULL, then the content will be printed.

it is just a sample to avoid max recursion error. we have to use option (maxrecursion 365); or option (maxrecursion 0);

DECLARE @STARTDATE datetime; 
DECLARE @EntDt datetime; 
set @STARTDATE = '01/01/2009';  
set @EntDt = '12/31/2009'; 
declare @dcnt int; 
;with DateList as   
 (   
    select @STARTDATE DateValue   
    union all   
    select DateValue + 1 from    DateList      
    where   DateValue + 1 < convert(VARCHAR(15),@EntDt,101)   
 )   
  select count(*) as DayCnt from (   
  select DateValue,DATENAME(WEEKDAY, DateValue ) as WEEKDAY from DateList
  where DATENAME(WEEKDAY, DateValue ) not IN ( 'Saturday','Sunday' )     
  )a
option (maxrecursion 365);

200

Ugh... (309, 400, 403, 409, 415, 422)... a lot of answers trying to guess, argue and standardize what is the best return code for a successful HTTP request but a failed REST call.

It is wrong to mix HTTP status codes and REST status codes.

However, I saw many implementations mixing them, and many developers may not agree with me.

HTTP return codes are related to the HTTP Request itself. A REST call is done using a Hypertext Transfer Protocol request and it works at a lower level than invoked REST method itself. REST is a concept/approach, and its output is a business/logical result, while HTTP result code is a transport one.

For example, returning "404 Not found" when you call /users/ is confuse, because it may mean:

• URI is wrong (HTTP)
• No users are found (REST)

"403 Forbidden/Access Denied" may mean:

• Special permission needed. Browsers can handle it by asking the user/password. (HTTP)
• Wrong access permissions configured on the server. (HTTP)
• You need to be authenticated (REST)

And the list may continue with '500 Server error" (an Apache/Nginx HTTP thrown error or a business constraint error in REST) or other HTTP errors etc...

From the code, it's hard to understand what was the failure reason, a HTTP (transport) failure or a REST (logical) failure.

If the HTTP request physically was performed successfully it should always return 200 code, regardless is the record(s) found or not. Because URI resource is found and was handled by the HTTP server. Yes, it may return an empty set. Is it possible to receive an empty web-page with 200 as HTTP result, right?

Instead of this you may return 200 HTTP code with some options:

• "error" object in JSON result if something goes wrong
• Empty JSON array/object if no record found
• A bool result/success flag in combination with previous options for a better handling.

Also, some internet providers may intercept your requests and return you a 404 HTTP code. This does not means that your data are not found, but it's something wrong at transport level.

From Wiki:

In July 2004, the UK telecom provider BT Group deployed the Cleanfeed content blocking system, which returns a 404 error to any request for content identified as potentially illegal by the Internet Watch Foundation. Other ISPs return a HTTP 403 "forbidden" error in the same circumstances. The practice of employing fake 404 errors as a means to conceal censorship has also been reported in Thailand and Tunisia. In Tunisia, where censorship was severe before the 2011 revolution, people became aware of the nature of the fake 404 errors and created an imaginary character named "Ammar 404" who represents "the invisible censor".

Why not simply answer with something like this?

{
  "result": false,
  "error": {"code": 102, "message": "Validation failed: Wrong NAME."}
}

Google always returns 200 as status code in their Geocoding API, even if the request logically fails: https://developers.google.com/maps/documentation/geocoding/intro#StatusCodes

Facebook always return 200 for successful HTTP requests, even if REST request fails: https://developers.facebook.com/docs/graph-api/using-graph-api/error-handling

It's simple, HTTP status codes are for HTTP requests. REST API is Your, define Your status codes.

In addition to the answer of Dyppl, I think it would be nice to place this inside the OnDataContextChanged event:

private void OnDataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
{
    // Unforunately we cannot bind from the viewmodel to the code behind so easily, the dependency property is not available in XAML. (for some reason).
    // To work around this, we create the binding once we get the viewmodel through the datacontext.
    var newViewModel = e.NewValue as MyViewModel;

    var executablePathBinding = new Binding
    {
        Source = newViewModel,
        Path = new PropertyPath(nameof(newViewModel.ExecutablePath))
    };

    BindingOperations.SetBinding(LayoutRoot, ExecutablePathProperty, executablePathBinding);
}

We have also had cases were we just saved the DataContext to a local property and used that to access viewmodel properties. The choice is of course yours, I like this approach because it is more consistent with the rest. You can also add some validation, like null checks. If you actually change your DataContext around, I think it would be nice to also call:

BindingOperations.ClearBinding(myText, TextBlock.TextProperty);

to clear the binding of the old viewmodel (e.oldValue in the event handler).

I was facing the same issue. As it turns out in my build.gradle file there was this :

configurations {
    all*.exclude group: 'com.android.support'
}

Removing that fixed my issue. So guys, if doing all that and still your issue is not fixed, look for any exclude keywords in your gradle file.

You usually get this error if your tables use the InnoDB engine. In that case you would have to drop the foreign key, and then do the alter table and drop the column.

But the tricky part is that you can't drop the foreign key using the column name, but instead you would have to find the name used to index it. To find that, issue the following select:

SHOW CREATE TABLE region; This should show you a row ,at left upper corner click the +option ,the click the full text raio button then click the go .there you will get the name of the index, something like this:

CONSTRAINT region_ibfk_1 FOREIGN KEY (country_id) REFERENCES country (id) ON DELETE NO ACTION ON UPDATE NO ACTION Now simply issue an:

alter table region drop foreign key region_ibfk_1;

or

more simply just type:- alter table TableName drop foreign key TableName_ibfk_1;

remember the only thing is to add _ibfk_1 after your tablename to make like this:- TableName_ibfk_1

Go to your dashboard on heroku. Select the app. There is a dynos section. Just pull the sliders for the dynos down, (a decrease in dynos is to the left), to the number of dynos you want to be running. The slider goes to 0. Then save your changes. Boom.

According to the comment below: there is a pencil icon that needs to be clicked to accomplish this. I have not checked - but am putting it here in case it helps.

Java now has a pretty good built-in date library, java.time bundled with Java 8.

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

public class Foo {
    public static void main(String[] args) {

        DateTimeFormatter format =
            DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss'Z'");

        LocalDateTime now = LocalDateTime.now();
        LocalDateTime then = now.minusDays(7);

        System.out.println(String.format(
            "Now:  %s\nThen: %s",
            now.format(format),
            then.format(format)
        ));
        /*
            Example output:
                Now:  2014-05-09T14:51:48Z
                Then: 2014-05-02T14:51:48Z
         */
    }
}

Once installed in windows Followed the instructions starting from Run SQL Command Line (command prompt)

then... v. SQL> connect /as sysdba

Connected. [SQL prompt response]

vi. SQL> alter user SYS identified by "newpassword";

User altered. [SQL prompt response]

Thank you. This minimized a headache

I like using the following to prevent things being outside my div elements. It helps with CSS rollovers too.

.marquee{
    overflow:hidden;
}

this will hide anything that moves/is outside of the div which will prevent the browser expanding and causing a scroll bar to appear.

With google-drive-ftp-adapter I have been able to access the My Drive area of Google Drive with the FileZilla FTP client. However, I have not been able to access the Shared with me area.

You can configure which Google account credentials it uses by changing the account property in the configuration.properties file from default to the desired Google account name. See the instructions at http://www.andresoviedo.org/google-drive-ftp-adapter/

Its Simple Way To Pass Header

function get_data($url) {

$ch = curl_init();
$timeout = 5;
$username = 'c4f727b9646045e58508b20ac08229e6';        // Put Username 
$password = '';                                        // Put Password
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_USERPWD, "$username:$password");    // Add This Line
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
$url = "https://storage.scrapinghub.com/items/397187/2/127";
$data = get_data($url);
echo '<pre>';`print_r($data_json);`die;    // For Print Value

Check My JSON Value

can this help?

select 
(SELECT group_concat(DISTINCT a) FROM my_table) as a,
(SELECT group_concat(DISTINCT b) FROM my_table) as b,
(SELECT group_concat(DISTINCT c) FROM my_table) as c,
(SELECT group_concat(DISTINCT d) FROM my_table) as d

Below styles will vertically center it for you.

p.event_desc {
 font: bold 12px "Helvetica Neue", Helvetica, Arial, sans-serif;
 line-height: 14px;
 height: 35px;
 display: table-cell;
 vertical-align: middle;
 margin: 0px;
}

Hi I faced the same issue in VS2008, I tried based on the post 8 (Thanks to the "Tricky part" section in that)

The (Ctrl+Alt+D) combo did not work there in VS2008, but after opening the Report file(rdlc) I browsed on the View menu and found out that View->Toolbars->Data Design is the solution for that.

Upon opening that we get around 4 icons of which the "Show Data Sources" section brings the "Website Data Sources" section which fetches all Entities, Typed DataSets etc.

The keybord shortcut is (Shift+Alt+D).

The twisty part here is the "Data Sources" section available with the Server Explorer toolbar doesnt bring up any stuff but the "Website Data Sources" brings all the needed., can somebody explain that to me.

You can reset your root password. Have in mind that it is not advisable to use root without password.

Do what is suggested in the answer, but make sure you also click inside the VM so that OSX has the focus before you plug in the phone. In my case, I had to do that to make it work.

If the python version is 3.X, it's okay.

I think your python version is 2.X, the super would work when adding this code

__metaclass__ = type

so the code is

__metaclass__ = type
class B:
    def meth(self, arg):
        print arg
class C(B):
    def meth(self, arg):
        super(C, self).meth(arg)
print C().meth(1)

The Distinct() guarantees that there are no duplicates pair (CategoryId, CategoryName).

- exactly that

Anonymous types 'magically' implement Equals and GetHashcode

I assume another error somewhere. Case sensitivity? Mutable classes? Non-comparable fields?

Simplest solution:

substr('299123456',-6,6)

You should be checking the root directory and not the app directory.

Look in $ROOT/storage/laravel.log not app/storage/laravel.log, where root is the top directory of the project.

It turns out, after messing around with all of the settings in the test business account, that one (or more) of the fraud related settings in the payment receiving preferences / security settings screens were causing the test payments to fail (without any useful error).

I was facing such a problem, look at the picture below

and here is its HTML

<tr class="li1">
    <td valign="top">1.</td>
    <td colspan="5" valign="top">
        <p>How to build e-book learning environment</p>
    </td>
</tr>

so I fix it by changing valign Attribute in both td tags to baseline

and it worked

here is the result

hope this help you

read from assets html file

ViewGroup webGroup;
  String content = readContent("content/ganji.html");

        final WebView webView = new WebView(this);
        webView.loadDataWithBaseURL(null, content, "text/html", "UTF-8", null);

        webGroup.addView(webView);

I think maybe you should go to check the official instruction about carousel, for me, i have not found answer above, because of multiple versions of bootstrap, I'm using b4-alpha and i want the autoplay effect stop.

$(document).ready({
    pause:true,
    interval:false
});

this script does not make any effect while mouse leave that page, exactly carousel area. go to official definition and find those :

So you will find why.if carousel page onmouseover event triggered, page will pause, while mouse out of that page, it'll resume again.

So, if you want a page stop forever and rotate manually, you can just set data-interval='false'.

with pure jquery:

window.jQuery.ajax({
    type: "POST",
    url: ajaxUrl,
    contentType: 'application/json',
    success: function (data) {

        var odd_even = false;
        var response = JSON.parse(data);

        var head = "<thead class='thead-inverse'><tr>";
        $.each(response[0], function (k, v) {
            head = head + "<th scope='row'>" + k.toString() + "</th>";
        })
        head = head + "</thead></tr>";
        $(table).append(head);//append header
       var body="<tbody><tr>";
        $.each(response, function () {
            body=body+"<tr>";
            $.each(this, function (k, v) {
                body=body +"<td>"+v.toString()+"</td>";                                        
            }) 
            body=body+"</tr>";               
        })
        body=body +"</tbody>";
        $(table).append(body);//append body
    },
    error: function (xhr, ajaxOptions, thrownError) {
        alert(xhr.responsetext);
    }
});

This will work:

if 'A' in df:

But for clarity, I'd probably write it as:

if 'A' in df.columns:

This might be more useful when you want your index shuffled.

def shuffle(df):
    index = list(df.index)
    random.shuffle(index)
    df = df.ix[index]
    df.reset_index()
    return df

It selects new df using new index, then reset them.

I've occasionally thought that it might serve a purpose to add a layer of security by obscuring the back-end interpreter through a remapping of .php or whatever to .aspx or whatever so that any potential hacker would be sent down the wrong path, at least for a while. I never bothered to try it and I don't do a lot of webserver work any more so I'm unlikely to.

However, I'd be interested in the perspective of an experienced server admin on that notion.

Note that sort() operates on the array in place, so you only need to call

sort($a);
doSomething($a);

This will not work;

$a = sort($a);
doSomething($a);

I had to do this in that order:

Install-Module MSOnline
Install-Module AzureAD
Import-Module AzureAD

You can use =A4, in case A4 is having long formula

I think cookies might be what you are looking for; this is how most websites uniquely identify visitors.

Expanding on @dhfsk answer

Here's my workflow

1. From Chrome DevTools, right-click the request you want to manipulate > Copy as cURL

2. Open Postman

3. Click Import in the upper-left corner then Paste Raw Text

To get an image from a URL we can use the following code:

ImageIcon imgThisImg = new ImageIcon(PicURL));

jLabel2.setIcon(imgThisImg);

It totally works for me. The PicUrl is a string variable which strores the url of the picture.

Update February 2020

Since this answer got a lot of traction, I thought it would be best to update it with newer Angular optimizations:

1. As another answerer said, ng build --prod --build-optimizer is a good option for people using less than Angular v5. For newer versions, this is done by default with ng build --prod
2. Another option is to use module chunking/lazy loading to better split your application into smaller chunks
3. Ivy rendering engine comes by default in Angular 9, it offers better bundle sizes
4. Make sure your 3rd party deps are tree shakeable. If you're not using Rxjs v6 yet, you should be.
5. If all else fails, use a tool like webpack-bundle-analyzer to see what is causing bloat in your modules
6. Check if you files are gzipped

Some claims that using AOT compilation can reduce the vendor bundle size to 250kb. However, in BlackHoleGalaxy's example, he uses AOT compilation and is still left with a vendor bundle size of 2.75MB with ng build --prod --aot, 10x larger than the supposed 250kb. This is not out of the norm for angular2 applications, even if you are using v4.0. 2.75MB is still too large for anyone who really cares about performance, especially on a mobile device.

There are a few things you can do to help the performance of your application:

1) AOT & Tree Shaking (angular-cli does this out of the box). With Angular 9 AOT is by default on prod and dev environment.

2) Using Angular Universal A.K.A. server-side rendering (not in cli)

3) Web Workers (again, not in cli, but a very requested feature)
see: https://github.com/angular/angular-cli/issues/2305

4) Service Workers
see: https://github.com/angular/angular-cli/issues/4006

You may not need all of these in a single application, but these are some of the options that are currently present for optimizing Angular performance. I believe/hope Google is aware of the out of the box shortcomings in terms of performance and plans to improve this in the future.

Here is a reference that talks more in depth about some of the concepts i mentioned above:

https://medium.com/@areai51/the-4-stages-of-perf-tuning-for-your-angular2-app-922ce5c1b294

The query either returned no rows or is erroneus, thus FALSE is returned. Change it to

if (!$dbc || mysqli_num_rows($dbc) == 0)

mysqli_num_rows:

Return Values

Returns TRUE on success or FALSE on failure. For SELECT, SHOW, DESCRIBE or EXPLAIN mysqli_query() will return a result object.

You can delete the HEAD and restore your repository to a new state, where you can create a new initial commit:

git update-ref -d HEAD

After you create a new commit, if you have already pushed to remote, you will need to force it to the remote in order to overwrite the previous initial commit:

git push --force origin

I had a similar issue, trying to run a WCF-based HttpSelfHostServer in Debug under my VisualStudio 2013. I tried every possible direction (turn off firewall, disabling IIS completely to eliminate the possibility localhost port is taken by some other service, etc.).

Eventually, what "did the trick" (solved the problem) was re-running VisualStudio 2013 as Administrator.

Amazing.

XAML :

<DataGrid x:Name="dgv_Students" AutoGenerateColumns="False"  ItemsSource="{Binding People}" Margin="10,20,10,0" Style="{StaticResource AzureDataGrid}" FontFamily="B Yekan" Background="#FFB9D1BA" >
                <DataGrid.Columns>
                    <DataGridTemplateColumn>
                        <DataGridTemplateColumn.CellTemplate>
                            <DataTemplate>
                                <Button Click="Button_Click_dgvs">Text</Button>
                            </DataTemplate>
                        </DataGridTemplateColumn.CellTemplate>
                    </DataGridTemplateColumn>
                    </DataGrid.Columns>

Code Behind :

       private IEnumerable<DataGridRow> GetDataGridRowsForButtons(DataGrid grid)
{ //IQueryable 
    var itemsSource = grid.ItemsSource as IEnumerable;
    if (null == itemsSource) yield return null;
    foreach (var item in itemsSource)
    {
        var row = grid.ItemContainerGenerator.ContainerFromItem(item) as DataGridRow;
        if (null != row & row.IsSelected) yield return row;
    }
}

void Button_Click_dgvs(object sender, RoutedEventArgs e)
{

    for (var vis = sender as Visual; vis != null; vis = VisualTreeHelper.GetParent(vis) as Visual)
        if (vis is DataGridRow)
        {
           // var row = (DataGrid)vis;

            var rows = GetDataGridRowsForButtons(dgv_Students);
            string id;
            foreach (DataGridRow dr in rows)
            {
                id = (dr.Item as tbl_student).Identification_code;
                MessageBox.Show(id);
                 break;
            }
            break;
        }
}

After clicking on the Button, the ID of that row is returned to you and you can use it for your Button name.

var nameCheckBoxList = "myCheckListName";
var selectedValues = $("[name=" + nameCheckBoxList + "]:checked").map(function(){return this.value;});

While the syntax is certainly different between Razor (.cshtml/.vbhtml) and WebForms (.aspx/.ascx), (Razor's being the more concise and modern of the two), nobody has mentioned that while both can be used as View Engines / Templating Engines, traditional ASP.NET Web Forms controls can be used on any .aspx or .ascx files, (even in cohesion with an MVC architecture).

This is relevant in situations where long standing solutions to a problem have been established and packaged into a pluggable component (e.g. a large-file uploading control) and you want to use it in an MVC site. With Razor, you can't do this. However, you can execute all of the same backend-processing that you would use with a traditional ASP.NET architecture with a Web Form view.

Furthermore, ASP.NET web forms views can have Code-Behind files, which allows embedding logic into a separate file that is compiled together with the view. While the software development community is growing to be see tightly coupled architectures and the Smart Client pattern as bad practice, it used to be the main way of doing things and is still very much possible with .aspx/.ascx files. Razor, intentionally, has no such quality.

Unfortunatelly, today (September 2018) you can not find cross-browser solution for client side file writing.

For example: in some browser like a Chrome we have today this possibility and we can write with FileSystemFileEntry.createWriter() with client side call, but according to the docu:

This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

---

For IE (but not MS Edge) we could use ActiveX too, but this is only for this client.

If you want update your JSON file cross-browser you have to use server and client side together.

The client side script

On client side you can make a request to the server and then you have to read the response from server. Or you could read a file with FileReader too. For the cross-browser writing to the file you have to have some server (see below on server part).

var xhr = new XMLHttpRequest(),
    jsonArr,
    method = "GET",
    jsonRequestURL = "SOME_PATH/jsonFile/";

xhr.open(method, jsonRequestURL, true);
xhr.onreadystatechange = function()
{
    if(xhr.readyState == 4 && xhr.status == 200)
    {
        // we convert your JSON into JavaScript object
        jsonArr = JSON.parse(xhr.responseText);

        // we add new value:
        jsonArr.push({"nissan": "sentra", "color": "green"});

        // we send with new request the updated JSON file to the server:
        xhr.open("POST", jsonRequestURL, true);
        xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
        // if you want to handle the POST response write (in this case you do not need it):
        // xhr.onreadystatechange = function(){ /* handle POST response */ };
        xhr.send("jsonTxt="+JSON.stringify(jsonArr));
        // but on this place you have to have a server for write updated JSON to the file
    }
};
xhr.send(null);

Server side scripts

You can use a lot of different servers, but I would like to write about PHP and Node.js servers.

By using searching machine you could find "free PHP Web Hosting*" or "free Node.js Web Hosting". For PHP server I would recommend 000webhost.com and for Node.js I would recommend to see and to read this list.

PHP server side script solution

The PHP script for reading and writing from JSON file:

<?php

// This PHP script must be in "SOME_PATH/jsonFile/index.php"

$file = 'jsonFile.txt';

if($_SERVER['REQUEST_METHOD'] === 'POST')
// or if(!empty($_POST))
{
    file_put_contents($file, $_POST["jsonTxt"]);
    //may be some error handeling if you want
}
else if($_SERVER['REQUEST_METHOD'] === 'GET')
// or else if(!empty($_GET))
{
    echo file_get_contents($file);
    //may be some error handeling if you want
}
?>

Node.js server side script solution

I think that Node.js is a little bit complex for beginner. This is not normal JavaScript like in browser. Before you start with Node.js I would recommend to read one from two books:

• Learning Node: Moving to the Server-Side
• Node.js Web Development: Server-side development

The Node.js script for reading and writing from JSON file:

var http = require("http"),
    fs = require("fs"),
    port = 8080,
    pathToJSONFile = '/SOME_PATH/jsonFile.txt';

http.createServer(function(request, response)
{
    if(request.method == 'GET')
    {
        response.writeHead(200, {"Content-Type": "application/json"});
        response.write(fs.readFile(pathToJSONFile, 'utf8'));
        response.end();
    }
    else if(request.method == 'POST')
    {
        var body = [];

        request.on('data', function(chunk)
        {
            body.push(chunk);
        });

        request.on('end', function()
        {
            body = Buffer.concat(body).toString();
            var myJSONdata = body.split("=")[1];
            fs.writeFileSync(pathToJSONFile, myJSONdata); //default: 'utf8'
        });
    }
}).listen(port);

Related links for Node.js:

• How to Develop Web Application using pure Node.js (HTTP GET and POST, HTTP Server) (detailed video tutorial)
• Anatomy of an HTTP Transaction
• How to handle POST request in Node.js
• How do you extract POST data in Node.js?

If you don't have access to getDefaultSharedPreferenes(), you can use getSharedPreferences(name, mode) instead, you just have to pass in the right name.

Android creates this name (possibly based on the package name of your project?). You can get it by putting the following code in a SettingsActivity onCreate(), and seeing what preferencesName is.

String preferencesName = this.getPreferenceManager().getSharedPreferencesName();

The string should be something like com.example.projectname_preferences. Hard code that somewhere in your project, and pass it in to getSharedPreferences() and you should be good to go.

log.retention.hours is a property of a broker which is used as a default value when a topic is created. When you change configurations of currently running topic using kafka-topics.sh, you should specify a topic-level property.

A topic-level property for log retention time is retention.ms.

From Topic-level configuration in Kafka 0.8.1 documentation:

• Property: retention.ms
• Default: 7 days
• Server Default Property: log.retention.minutes
• Description: This configuration controls the maximum time we will retain a log before we will discard old log segments to free up space if we are using the "delete" retention policy. This represents an SLA on how soon consumers must read their data.

So the correct command depends on the version. Up to 0.8.2 (although docs still show its use up to 0.10.1) use kafka-topics.sh --alter and after 0.10.2 (or perhaps from 0.9.0 going forward) use kafka-configs.sh --alter

$ bin/kafka-topics.sh --zookeeper zk.yoursite.com --alter --topic as-access --config retention.ms=86400000
 

You can check whether the configuration is properly applied with the following command.

$ bin/kafka-topics.sh --describe --zookeeper zk.yoursite.com --topic as-access

Then you will see something like below.

Topic:as-access  PartitionCount:3  ReplicationFactor:3  Configs:retention.ms=86400000

So to make your expression work, changing && for -a will do the trick.

It is correct like this:

 if [ -f $VAR1 ] && [ -f $VAR2 ] && [ -f $VAR3 ]
 then  ....

or like

 if [[ -f $VAR1 && -f $VAR2 && -f $VAR3 ]]
 then  ....

or even

 if [ -f $VAR1 -a -f $VAR2 -a -f $VAR3 ]
 then  ....

You can find further details in this question bash : Multiple Unary operators in if statement and some references given there like What is the difference between test, [ and [[ ?.

Assuming that "part within rectangle don't have content color" means that you want different fills within the rectangle; you need to draw a rectangle within your rectangle then with stroke width 0 and the desired fill colour(s).

For example:

DrawView.java

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.View;

public class DrawView extends View {
    Paint paint = new Paint();

    public DrawView(Context context) {
        super(context);            
    }

    @Override
    public void onDraw(Canvas canvas) {
        paint.setColor(Color.BLACK);
        paint.setStrokeWidth(3);
        canvas.drawRect(30, 30, 80, 80, paint);
        paint.setStrokeWidth(0);
        paint.setColor(Color.CYAN);
        canvas.drawRect(33, 60, 77, 77, paint );
        paint.setColor(Color.YELLOW);
        canvas.drawRect(33, 33, 77, 60, paint );

    }

}

The activity to start it:

StartDraw.java

import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;

public class StartDraw extends Activity {
    DrawView drawView;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        drawView = new DrawView(this);
        drawView.setBackgroundColor(Color.WHITE);
        setContentView(drawView);

    }
}

...will turn out this way:

If jQuery above does not work, then try

$(Object.Item).length

myList[1] is an element of myList and it's type is string.

myList[1] is str, you can not append to it. myList is a list, you should have been appending to it.

>>> myList = [1, 'from form', [1,2]]
>>> myList[1]
'from form'
>>> myList[2]
[1, 2]
>>> myList[2].append('t')
>>> myList
[1, 'from form', [1, 2, 't']]
>>> myList[1].append('t')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'str' object has no attribute 'append'
>>> 

Lately I've come across yet another way of putting JS code inside PHP code. It involves Heredoc PHP syntax. I hope it'll be helpful for someone.

<?php
$script = <<< JS

$(function() {
   // js code goes here
});

JS;
?>

After closing the heredoc construction the $script variable contains your JS code that can be used like this:

<script><?= $script ?></script>

The profit of using this way is that modern IDEs recognize JS code inside Heredoc and highlight it correctly unlike using strings. And you're still able to use PHP variables inside of JS code.

As the bError = false statement is never reached in the try block, and the statement is struck to the input taken, it keeps printing the error in infinite loop.

Try using it this way by using hasNextInt()

catch (Exception e) {
            System.out.println("Error!");
           input.hasNextInt();         
        }

Or try using nextLine() coupled with Integer.parseInt() for taking input....

Scanner scan = new Scanner(System.in);

int num1 = Integer.parseInt(scan.nextLine());
int num2 = Integer.parseInt(scan.nextLine());

here is what I would do in order to debug and get the php errors into javascript console.log after an ajax call:

    $('#ChangePermission').click(function () {
    $.ajax({
        url: 'change_permission.php',
        type: 'POST',
        data: {
            'user': document.GetElementById("user").value,
            'perm': document.GetElementById("perm").value
        },
        success: function (data) {
            console.log(data);  
        },
        error: function (data) {
            console.log(data);
        }
    });
});

on the php side I would start by asking for all error returned to string concat and echo as a json encoded response that will includes php error messages as well if any.

<?php

error_reporting(E_ALL);
require_once(functions . php);
$result = "true";
$DBH = new PDO("mysql:host=$dbhost;dbname=$dbname", $dbuser, $dbpass);  
$DBH->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$STH = $DBH->prepare("INSERT INTO people ( username, permissions ) values (?, ?)");

if (isset($_POST["user"]) && isset($_POST["perm"])) {
    $STH->bindParam(1, $_POST["user"], PDO::PARAM_STR);
    $STH->bindParam(2, $_POST["perm"], PDO::PARAM_STR);
}
try {
    $STH->execute();
} catch (PDOException $e) {
    $result .= $e->getMessage;
}
echo json_encode($result);
?>

Unless you want to talk to an SMTP server directly via telnet you'd use commandline mailers like blat:

blat -to [email protected] -f [email protected] -s "mail subject" ^
  -server smtp.example.net -body "message text"

or bmail:

bmail -s smtp.example.net -t [email protected] -f [email protected] -h ^
  -a "mail subject" -b "message text"

You could also write your own mailer in VBScript or PowerShell.

To get the current directory full path:

os.path.realpath('.')

At the time of writing this answer, there was no method to embed which let the user navigate inside folders and view the files without her leaving the website (the method in other answers, makes everything open in a new tab on google drive website), so I made my own tool for it. To embed a drive, paste the iframe code below in your HTML:

<iframe src="https://googledriveembedder.collegefam.com/?key=YOUR_API_KEY&folderid=FOLDER_ID_WHIHCH_IS_PUBLICLY_VIEWABLE" style="border:none;" width="100%"></iframe>

In the above code, you need to have your own API key and the folder ID. You can set the height as per your wish.

To get the API key:

1.) Go to https://console.developers.google.com/ Create a new project.

2.) From the menu button, go to 'APIs and Services' --> 'Dashboard' --> Click on 'Enable APIs and Services'.

3.) Search for 'Google Drive API', enable it. Then go to "credentials' tab, and create credentials. Keep your API key unrestricted.

4.) Copy the newly generated API key.

To get the folder ID:

1.)Go to the google drive folder you want to embed (for example, drive.google.com/drive/u/0/folders/1v7cGug_e3lNT0YjhvtYrwKV7dGY-Nyh5u [this is not a real folder]) Ensure that the folder is publicly shared and visible to anyone.

2.) Copy the part after 'folders/', this is your folder ID.

Now put both the API key and folder id in the above code and embed.

Note: To hide the download button for files, add '&allowdl=no' at the end of the iframe's src URL.

I made the widget keeping mobile users in mind, however it suits both mobile and desktop. If you run into issues, leave a comment here. I have attached some screenshots of the content of the iframe here.

We can implement ajax request by using http service in AngularJs, which helps to read/load data from remote server.

$http service methods are listed below,

 $http.get()
 $http.post()
 $http.delete()
 $http.head()
 $http.jsonp()
 $http.patch()
 $http.put()

One of the Example:

    $http.get("sample.php")
        .success(function(response) {
            $scope.getting = response.data; // response.data is an array
    }).error(){

        // Error callback will trigger
    });

http://www.drtuts.com/ajax-requests-angularjs/