Since Bootstrap 3 doesn't have a style for checkboxes I found a custom made that goes really well with Bootstrap style.

Checkboxes

.checkbox label:after {_x000D_
  content: '';_x000D_
  display: table;_x000D_
  clear: both;_x000D_
}_x000D_
_x000D_
.checkbox .cr {_x000D_
  position: relative;_x000D_
  display: inline-block;_x000D_
  border: 1px solid #a9a9a9;_x000D_
  border-radius: .25em;_x000D_
  width: 1.3em;_x000D_
  height: 1.3em;_x000D_
  float: left;_x000D_
  margin-right: .5em;_x000D_
}_x000D_
_x000D_
.checkbox .cr .cr-icon {_x000D_
  position: absolute;_x000D_
  font-size: .8em;_x000D_
  line-height: 0;_x000D_
  top: 50%;_x000D_
  left: 15%;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"] {_x000D_
  display: none;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"]+.cr>.cr-icon {_x000D_
  opacity: 0;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"]:checked+.cr>.cr-icon {_x000D_
  opacity: 1;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"]:disabled+.cr {_x000D_
  opacity: .5;_x000D_
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">_x000D_
_x000D_
<!-- Default checkbox -->_x000D_
<div class="checkbox">_x000D_
  <label>_x000D_
   <input type="checkbox" value="">_x000D_
   <span class="cr"><i class="cr-icon glyphicon glyphicon-ok"></i></span>_x000D_
   Option one_x000D_
   </label>_x000D_
</div>_x000D_
_x000D_
<!-- Checked checkbox -->_x000D_
<div class="checkbox">_x000D_
  <label>_x000D_
   <input type="checkbox" value="" checked>_x000D_
   <span class="cr"><i class="cr-icon glyphicon glyphicon-ok"></i></span>_x000D_
   Option two is checked by default_x000D_
   </label>_x000D_
</div>_x000D_
_x000D_
<!-- Disabled checkbox -->_x000D_
<div class="checkbox disabled">_x000D_
  <label>_x000D_
   <input type="checkbox" value="" disabled>_x000D_
   <span class="cr"><i class="cr-icon glyphicon glyphicon-ok"></i></span>_x000D_
   Option three is disabled_x000D_
   </label>_x000D_
</div>

Radio

.checkbox label:after,_x000D_
.radio label:after {_x000D_
  content: '';_x000D_
  display: table;_x000D_
  clear: both;_x000D_
}_x000D_
_x000D_
.checkbox .cr,_x000D_
.radio .cr {_x000D_
  position: relative;_x000D_
  display: inline-block;_x000D_
  border: 1px solid #a9a9a9;_x000D_
  border-radius: .25em;_x000D_
  width: 1.3em;_x000D_
  height: 1.3em;_x000D_
  float: left;_x000D_
  margin-right: .5em;_x000D_
}_x000D_
_x000D_
.radio .cr {_x000D_
  border-radius: 50%;_x000D_
}_x000D_
_x000D_
.checkbox .cr .cr-icon,_x000D_
.radio .cr .cr-icon {_x000D_
  position: absolute;_x000D_
  font-size: .8em;_x000D_
  line-height: 0;_x000D_
  top: 50%;_x000D_
  left: 13%;_x000D_
}_x000D_
_x000D_
.radio .cr .cr-icon {_x000D_
  margin-left: 0.04em;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"],_x000D_
.radio label input[type="radio"] {_x000D_
  display: none;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"]+.cr>.cr-icon,_x000D_
.radio label input[type="radio"]+.cr>.cr-icon {_x000D_
  opacity: 0;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"]:checked+.cr>.cr-icon,_x000D_
.radio label input[type="radio"]:checked+.cr>.cr-icon {_x000D_
  opacity: 1;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"]:disabled+.cr,_x000D_
.radio label input[type="radio"]:disabled+.cr {_x000D_
  opacity: .5;_x000D_
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">_x000D_
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.10/css/all.css" integrity="sha384-+d0P83n9kaQMCwj8F4RJB66tzIwOKmrdb46+porD/OvrJ+37WqIM7UoBtwHO6Nlg" crossorigin="anonymous">_x000D_
_x000D_
<!-- Default radio -->_x000D_
<div class="radio">_x000D_
  <label>_x000D_
   <input type="radio" name="o3" value="">_x000D_
   <span class="cr"><i class="cr-icon fa fa-circle"></i></span>_x000D_
   Option one_x000D_
   </label>_x000D_
</div>_x000D_
_x000D_
<!-- Checked radio -->_x000D_
<div class="radio">_x000D_
  <label>_x000D_
   <input type="radio" name="o3" value="" checked>_x000D_
   <span class="cr"><i class="cr-icon fa fa-circle"></i></span>_x000D_
   Option two is checked by default_x000D_
   </label>_x000D_
</div>_x000D_
_x000D_
<!-- Disabled radio -->_x000D_
<div class="radio disabled">_x000D_
  <label>_x000D_
   <input type="radio" name="o3" value="" disabled>_x000D_
   <span class="cr"><i class="cr-icon fa fa-circle"></i></span>_x000D_
   Option three is disabled_x000D_
   </label>_x000D_
</div>

Custom icons

You can choose your own icon between the ones from Bootstrap or Font Awesome by changing [icon name] with your icon.

<span class="cr"><i class="cr-icon [icon name]"></i>

For example:

• glyphicon glyphicon-remove for Bootstrap, or
• fa fa-bullseye for Font Awesome

.checkbox label:after,_x000D_
.radio label:after {_x000D_
  content: '';_x000D_
  display: table;_x000D_
  clear: both;_x000D_
}_x000D_
_x000D_
.checkbox .cr,_x000D_
.radio .cr {_x000D_
  position: relative;_x000D_
  display: inline-block;_x000D_
  border: 1px solid #a9a9a9;_x000D_
  border-radius: .25em;_x000D_
  width: 1.3em;_x000D_
  height: 1.3em;_x000D_
  float: left;_x000D_
  margin-right: .5em;_x000D_
}_x000D_
_x000D_
.radio .cr {_x000D_
  border-radius: 50%;_x000D_
}_x000D_
_x000D_
.checkbox .cr .cr-icon,_x000D_
.radio .cr .cr-icon {_x000D_
  position: absolute;_x000D_
  font-size: .8em;_x000D_
  line-height: 0;_x000D_
  top: 50%;_x000D_
  left: 15%;_x000D_
}_x000D_
_x000D_
.radio .cr .cr-icon {_x000D_
  margin-left: 0.04em;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"],_x000D_
.radio label input[type="radio"] {_x000D_
  display: none;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"]+.cr>.cr-icon,_x000D_
.radio label input[type="radio"]+.cr>.cr-icon {_x000D_
  opacity: 0;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"]:checked+.cr>.cr-icon,_x000D_
.radio label input[type="radio"]:checked+.cr>.cr-icon {_x000D_
  opacity: 1;_x000D_
}_x000D_
_x000D_
.checkbox label input[type="checkbox"]:disabled+.cr,_x000D_
.radio label input[type="radio"]:disabled+.cr {_x000D_
  opacity: .5;_x000D_
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">_x000D_
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.10/css/all.css" integrity="sha384-+d0P83n9kaQMCwj8F4RJB66tzIwOKmrdb46+porD/OvrJ+37WqIM7UoBtwHO6Nlg" crossorigin="anonymous">_x000D_
_x000D_
<div class="checkbox">_x000D_
  <label>_x000D_
   <input type="checkbox" value="" checked>_x000D_
   <span class="cr"><i class="cr-icon glyphicon glyphicon-remove"></i></span>_x000D_
   Bootstrap - Custom icon checkbox_x000D_
   </label>_x000D_
</div>_x000D_
_x000D_
<div class="radio">_x000D_
  <label>_x000D_
   <input type="radio" name="o3" value="" checked>_x000D_
   <span class="cr"><i class="cr-icon fa fa-bullseye"></i></span>_x000D_
   Font Awesome - Custom icon radio checked by default_x000D_
   </label>_x000D_
</div>_x000D_
<div class="radio">_x000D_
  <label>_x000D_
   <input type="radio" name="o3" value="">_x000D_
   <span class="cr"><i class="cr-icon fa fa-bullseye"></i></span>_x000D_
   Font Awesome - Custom icon radio_x000D_
   </label>_x000D_
</div>

There's a kind of hack-tastic way to do it if you have php enabled on your server. Change this line:

url:   'http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml',

to this line:

url: '/path/to/phpscript.php',

and then in the php script (if you have permission to use the file_get_contents() function):

<?php

header('Content-type: application/xml');
echo file_get_contents("http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml");

?>

Php doesn't seem to mind if that url is from a different origin. Like I said, this is a hacky answer, and I'm sure there's something wrong with it, but it works for me.

Edit: If you want to cache the result in php, here's the php file you would use:

<?php

$cacheName = 'somefile.xml.cache';
// generate the cache version if it doesn't exist or it's too old!
$ageInSeconds = 3600; // one hour
if(!file_exists($cacheName) || filemtime($cacheName) > time() + $ageInSeconds) {
  $contents = file_get_contents('http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml');
  file_put_contents($cacheName, $contents);
}

$xml = simplexml_load_file($cacheName);

header('Content-type: application/xml');
echo $xml;

?>

Caching code take from here.

You can use List<Y>.ConvertAll<T>([Converter from Y to T]);

Yuzem's method can be improved by inversing the order of the < and > signs in the rdom function and the variable assignments, so that:

rdom () { local IFS=\> ; read -d \< E C ;}

becomes:

rdom () { local IFS=\< ; read -d \> C E ;}

If the parsing is not done like this, the last tag in the XML file is never reached. This can be problematic if you intend to output another XML file at the end of the while loop.

The psutil library gives you information about CPU, RAM, etc., on a variety of platforms:

psutil is a module providing an interface for retrieving information on running processes and system utilization (CPU, memory) in a portable way by using Python, implementing many functionalities offered by tools like ps, top and Windows task manager.

It currently supports Linux, Windows, OSX, Sun Solaris, FreeBSD, OpenBSD and NetBSD, both 32-bit and 64-bit architectures, with Python versions from 2.6 to 3.5 (users of Python 2.4 and 2.5 may use 2.1.3 version).

Some examples:

#!/usr/bin/env python
import psutil
# gives a single float value
psutil.cpu_percent()
# gives an object with many fields
psutil.virtual_memory()
# you can convert that object to a dictionary 
dict(psutil.virtual_memory()._asdict())
# you can have the percentage of used RAM
psutil.virtual_memory().percent
79.2
# you can calculate percentage of available memory
psutil.virtual_memory().available * 100 / psutil.virtual_memory().total
20.8

Here's other documentation that provides more concepts and interest concepts:

• https://psutil.readthedocs.io/en/latest/

The Windows version of Qt 4 includes both WebKit and classes to create ActiveX components. It probably isn't an ideal solution if you aren't already using Qt though.

If you can wait to eliminate the duplicates until after all the additions, the typical approach is to first sort the array and then eliminate duplicates. The sorting avoids the N * N approach of scanning the array for each element as you walk through them.

The "eliminate duplicates" function is usually called unique or uniq. Some existing implementations may combine the two steps, e.g., prototype's uniq

This post has few ideas to try (and some to avoid :-) ) if your library doesn't already have one! Personally I find this one the most straight forward:

    function unique(a){
        a.sort();
        for(var i = 1; i < a.length; ){
            if(a[i-1] == a[i]){
                a.splice(i, 1);
            } else {
                i++;
            }
        }
        return a;
    }  

    // Provide your own comparison
    function unique(a, compareFunc){
        a.sort( compareFunc );
        for(var i = 1; i < a.length; ){
            if( compareFunc(a[i-1], a[i]) === 0){
                a.splice(i, 1);
            } else {
                i++;
            }
        }
        return a;
    }

I'd say you can, although it doesn't validate and Firefox will re-arrange the code (so what you see in 'View generated source' when using Web Developer may well surprise). I'm no expert, but putting

<form action="someexecpage.php" method="post">

just ahead of the

<tr>

and then using

</tr></form>

at the end of the row certainly gives the functionality (tested in Firefox, Chrome and IE7-9). Working for me, even if the number of validation errors it produced was a new personal best/worst! No problems seen as a consequence, and I have a fairly heavily styled table. I guess you may have a dynamically produced table, as I do, which is why parsing the table rows is a bit non-obvious for us mortals. So basically, open the form at the beginning of the row and close it just after the end of the row.

HTML Code

<input type="file" name="image" id="uploadImage" size="30" />
<input type="submit" name="upload"  class="send_upload" value="upload" />

jQuery Code using bind method

$(document).ready(function() {
    $('#upload').bind("click",function() 
    { if(!$('#uploadImage').val()){
                alert("empty");
                return false;} });  });

I would say using the data- attribute to match the headers with the elements inside it. Fiddle : http://jsfiddle.net/GbRAZ/1/

A preview of the HTML alteration :

   <tr class="header" id="header1">
    <td colspan="2">Header</td>
   </tr>
   <tr data-for="header1" style="display:none">
     <td>data</td>
     <td>data</td>
   </tr>
   <tr data-for="header1" style="display:none">
     <td>data</td>
     <td>data</td>
   </tr>

JS code :

$(".header").click(function () {
   $("[data-for="+this.id+"]").slideToggle("slow");
});

EDIT: But, it involves some HTML changes. so I dunno if thats what you wanted. A better way to structure this would be using <th> or by changing the entire html to use ul, ol, etc or even a div > span setup.

No need to import any library:

>>> bytearray.fromhex("7061756c").decode()
'paul'

Probably the bast way is to build a custom method mixing a combination of regex and small look up on your file system (to see the drives, for example)

The best way in my eyes is to use the concat() method provided by the String class itself.

The useage would, in your case, look like this:

String myConcatedString = cursor.getString(numcol).concat('-').
       concat(cursor.getString(cursor.getColumnIndexOrThrow(db.KEY_DESTINATIE)));

The simple answer is to use the foreach keyword instead of the ForEach() method of List().

using (DataContext db = new DataLayer.DataContext())
{
    foreach(var i in db.Groups)
    {
        await GetAdminsFromGroup(i.Gid);
    }
}

This is just another example of how you can use Dropzone.js in an existing form.

dropzone.js :

 init: function() {

   this.on("success", function(file, responseText) {
     //alert("HELLO ?" + responseText); 
     mylittlefix(responseText);
   });

   return noop;
 },

Then, later in the file I put

function mylittlefix(responseText) {
  $('#botofform').append('<input type="hidden" name="files[]" value="'+ responseText +'">');
}

This assumes you have a div with id #botofform that way when uploading you can use the uploaded files' names.

Note: my upload script returned theuploadedfilename.jpeg dubblenote you also would need to make a cleanup script that checks the upload directory for files not in use and deletes them ..if in a front end non authenticated form :)

From http://blog.sqlauthority.com/2008/06/07/sql-server-pivot-and-unpivot-table-examples/:

SELECT CUST, PRODUCT, QTY
FROM Product) up
PIVOT
( SUM(QTY) FOR PRODUCT IN (VEG, SODA, MILK, BEER, CHIPS)) AS pvt) p
UNPIVOT
(QTY FOR PRODUCT IN (VEG, SODA, MILK, BEER, CHIPS)
) AS Unpvt
GO

2 options I know of.

• CCI
• Mono Cecil

These wont give you C# though.

I know this is an old thread, but if you prefer case-insensitive searching:

SELECT * FROM INFORMATION_SCHEMA.TABLES 
WHERE Lower(TABLE_NAME) LIKE Lower('%%')

Just for anyone trying to do this automatically, you can use that extension method to ignore non existing properties on the destination type :

public static IMappingExpression<TSource, TDestination> IgnoreAllNonExisting<TSource, TDestination>(this IMappingExpression<TSource, TDestination> expression)
{
    var sourceType = typeof(TSource);
    var destinationType = typeof(TDestination);
    var existingMaps = Mapper.GetAllTypeMaps().First(x => x.SourceType.Equals(sourceType)
        && x.DestinationType.Equals(destinationType));
    foreach (var property in existingMaps.GetUnmappedPropertyNames())
    {
        expression.ForMember(property, opt => opt.Ignore());
    }
    return expression;
}

to be used as follow :

Mapper.CreateMap<SourceType, DestinationType>().IgnoreAllNonExisting();

thanks to Can Gencer for the tip :)

source : http://cangencer.wordpress.com/2011/06/08/auto-ignore-non-existing-properties-with-automapper/

There is a public domain TimeZone library for .NET. Really useful. It will answer your needs.

Solving the general-case timezone problem is harder than you think.

There is no single magic function to force a frame to a minimum or fixed size. However, you can certainly force the size of a frame by giving the frame a width and height. You then have to do potentially two more things: when you put this window in a container you need to make sure the geometry manager doesn't shrink or expand the window. Two, if the frame is a container for other widget, turn grid or pack propagation off so that the frame doesn't shrink or expand to fit its own contents.

Note, however, that this won't prevent you from resizing a window to be smaller than an internal frame. In that case the frame will just be clipped.

import Tkinter as tk

root = tk.Tk()
frame1 = tk.Frame(root, width=100, height=100, background="bisque")
frame2 = tk.Frame(root, width=50, height = 50, background="#b22222")

frame1.pack(fill=None, expand=False)
frame2.place(relx=.5, rely=.5, anchor="c")

root.mainloop()

Simply you can write the following code snippet to convert an OpenCV image into a grey scale image

import cv2
image = cv2.imread('image.jpg',0)
cv2.imshow('grey scale image',image)

Observe that the image.jpg and the code must be saved in same folder.

Note that:

• ('image.jpg') gives a RGB image
• ('image.jpg',0) gives Grey Scale Image.

You essentially do inherit the constuctors in the sense that you can simply call super if and when appropriate, it's just that it would be error prone for reasons others have mentioned if it happened by default. The compiler can't presume when it is appropriate and when it isn't.

The job of the compiler is to provide as much flexibility as possible while reducing complexity and risk of unintended side-effects.

Actually there are 3 places where gradle.properties can be placed:

1. Under gradle user home directory defined by the GRADLE_USER_HOME environment variable, which if not set defaults to USER_HOME/.gradle
2. The sub-project directory (myProject2 in your case)
3. The root project directory (under myProject)

Gradle looks for gradle.properties in all these places while giving precedence to properties definition based on the order above. So for example, for a property defined in gradle user home directory (#1) and the sub-project (#2) its value will be taken from gradle user home directory (#1).

You can find more details about it in gradle documentation here.

My own template functions which performs upper / lower case.

#include <string>
#include <algorithm>

//
//  Lowercases string
//
template <typename T>
std::basic_string<T> lowercase(const std::basic_string<T>& s)
{
    std::basic_string<T> s2 = s;
    std::transform(s2.begin(), s2.end(), s2.begin(), tolower);
    return std::move(s2);
}

//
// Uppercases string
//
template <typename T>
std::basic_string<T> uppercase(const std::basic_string<T>& s)
{
    std::basic_string<T> s2 = s;
    std::transform(s2.begin(), s2.end(), s2.begin(), toupper);
    return std::move(s2);
}

The ruby version 1.8.7 seems to be your system ruby.

Normally you can choose the ruby version you'd like, if you are using rvm with following. Simple change into your directory in a new terminal and type in:

rvm use 2.0.0

You can find more details about rvm here: http://rvm.io Open the website and scroll down, you will see a few helpful links. "Setting up default rubies" for example could help you.

Update: To set the ruby as default:

rvm use 2.0.0 --default

listOfStuff =([a,b], [c,d], [e,f], [f,g])

for item in listOfStuff[1:3]:
    print item

You have to iterate over a slice of your tuple. The 1 is the first element you need and 3 (actually 2+1) is the first element you don't need.

Elements in a list are numerated from 0:

listOfStuff =([a,b], [c,d], [e,f], [f,g])
               0      1      2      3

[1:3] takes elements 1 and 2.

You can install opencv from official or unofficial sites.

Refer to this question and this issue if you are using Anaconda.

First of all, I suggest that you narrow the problem to which component throws the "Out of Memory Exception".

This could be:

1. Eclipse itself (which I doubt)
2. Your application under Tomcat

The JVM parameters -xms and -xmx represent the heap's "start memory" and the "maximum memory". Forget the "start memory". This is not going to help you now and you should only change this parameter if you're sure your app will consume this amount of memory rapidly.

In production, I think the only parameter that you can change is the -xmx under the Catalina.sh or Catalina.bat files. But if you are testing your webapp directly from Eclipse with a configured debug environment of Tomcat, you can simply go to your "Debug Configurations" > "Apache Tomcat" > "Arguments" > "VM arguments" and set the -xmx there.

As for the optimal -xmx for 2gb, this depends a lot of your environment and the number of requests your app might take. I would try values from 500mb up to 1gb. Check your OS virtual memory "zone" limit and the limit of the JVM itself.

I created a derived class to have a more self-documented instruction instead of $conn=null;.

class CMyPDO extends PDO {
    public function __construct($dsn, $username = null, $password = null, array $options = null) {
        parent::__construct($dsn, $username, $password, $options);
    }

    static function getNewConnection() {
        $conn=null;
        try {
            $conn = new CMyPDO("mysql:host=$host;dbname=$dbname",$user,$pass);
        }
        catch (PDOException $exc) {
            echo $exc->getMessage();
        }
        return $conn;
    }

    static function closeConnection(&$conn) {
        $conn=null;
    }
}

So I can call my code between:

$conn=CMyPDO::getNewConnection();
// my code
CMyPDO::closeConnection($conn);

I think I tried everything mentioned here, and it still didn't work. Turns out it didn't recognize my domain login to the server as being in the Administrators group because it was implicit through my membership in another group ( Developers ) which is a member of the Administrators group.

I added my individual domain\login to the Administrators group explicitly, logged off and then logged back on to the box, and IE admitted me to the Report Manager homepage without requiring me to run IE as administrator.

This should work well. Similar to the accepted answer (though using jQuery), but the isDragging flag is only reset if the new mouse position differs from that on mousedown event. Unlike the accepted answer, that works on recent versions of Chrome, where mousemove is fired regardless of whether mouse was moved or not.

var isDragging = false;
var startingPos = [];
$(".selector")
    .mousedown(function (evt) {
        isDragging = false;
        startingPos = [evt.pageX, evt.pageY];
    })
    .mousemove(function (evt) {
        if (!(evt.pageX === startingPos[0] && evt.pageY === startingPos[1])) {
            isDragging = true;
        }
    })
    .mouseup(function () {
        if (isDragging) {
            console.log("Drag");
        } else {
            console.log("Click");
        }
        isDragging = false;
        startingPos = [];
    });

You may also adjust the coordinate check in mousemove if you want to add a little bit of tolerance (i.e. treat tiny movements as clicks, not drags).

foreach (var data in dynObj.quizlist)
{
    foreach (var data1 in data.QUIZ.QPROP)
    {
        Response.Write("Name" + ":" + data1.name + "<br>");
        Response.Write("Intro" + ":" + data1.intro + "<br>");
        Response.Write("Timeopen" + ":" + data1.timeopen + "<br>");
        Response.Write("Timeclose" + ":" + data1.timeclose + "<br>");
        Response.Write("Timelimit" + ":" + data1.timelimit + "<br>");
        Response.Write("Noofques" + ":" + data1.noofques + "<br>");

        foreach (var queprop in data1.QUESTION.QUEPROP)
        {
            Response.Write("Questiontext" + ":" + queprop.questiontext  + "<br>");
            Response.Write("Mark" + ":" + queprop.mark  + "<br>");
        }
    }
}

It sounds like you're trying to use log4j from "both ends" (the consumer end and the configuration end).

If you want to code against the slf4j api but determine ahead of time (and programmatically) the configuration of the log4j Loggers that the classpath will return, you absolutely have to have some sort of logging adaptation which makes use of lazy construction.

public class YourLoggingWrapper {
    private static boolean loggingIsInitialized = false;

    public YourLoggingWrapper() {
        // ...blah
    }

    public static void debug(String debugMsg) {
        log(LogLevel.Debug, debugMsg);
    }

    // Same for all other log levels your want to handle.
    // You mentioned TRACE and ERROR.

    private static void log(LogLevel level, String logMsg) {
        if(!loggingIsInitialized)
            initLogging();

        org.slf4j.Logger slf4jLogger = org.slf4j.LoggerFactory.getLogger("DebugLogger");

        switch(level) {
        case: Debug:
            logger.debug(logMsg);
            break;
        default:
            // whatever
        }
    }

    // log4j logging is lazily constructed; it gets initialized
    // the first time the invoking app calls a log method
    private static void initLogging() {
        loggingIsInitialized = true;

        org.apache.log4j.Logger debugLogger = org.apache.log4j.LoggerFactory.getLogger("DebugLogger");

        // Now all the same configuration code that @oers suggested applies...
        // configure the logger, configure and add its appenders, etc.
        debugLogger.addAppender(someConfiguredFileAppender);
    }

With this approach, you don't need to worry about where/when your log4j loggers get configured. The first time the classpath asks for them, they get lazily constructed, passed back and made available via slf4j. Hope this helped!

You can also find a copy of the nuspec.xsd here as it seems to no longer be available:

https://gist.github.com/sharwell/6131243

The python shutil.copytree method its a mess. I've done one that works correctly:

def copydirectorykut(src, dst):
    os.chdir(dst)
    list=os.listdir(src)
    nom= src+'.txt'
    fitx= open(nom, 'w')

    for item in list:
        fitx.write("%s\n" % item)
    fitx.close()

    f = open(nom,'r')
    for line in f.readlines():
        if "." in line:
            shutil.copy(src+'/'+line[:-1],dst+'/'+line[:-1])
        else:
            if not os.path.exists(dst+'/'+line[:-1]):
                os.makedirs(dst+'/'+line[:-1])
                copydirectorykut(src+'/'+line[:-1],dst+'/'+line[:-1])
            copydirectorykut(src+'/'+line[:-1],dst+'/'+line[:-1])
    f.close()
    os.remove(nom)
    os.chdir('..')

All the steps you have performed are correct, except one step, instead creating one separate variable, try below steps.

1. Search for python.exe file, find the parent folder.
2. Copy the folder path like on which python installation files resides
3. Now go to the control panel-system-advanced settings-environment variables
4. Find Path variable paste the copied folder path here and add ;
5. Now all set for the execution goto cmd type python you must see the version details

Since 0.14.1, you can now do nlargest and nsmallest on a groupby object:

In [23]: df.groupby('id')['value'].nlargest(2)
Out[23]: 
id   
1   2    3
    1    2
2   6    4
    5    3
3   7    1
4   8    1
dtype: int64

There's a slight weirdness that you get the original index in there as well, but this might be really useful depending on what your original index was.

If you're not interested in it, you can do .reset_index(level=1, drop=True) to get rid of it altogether.

(Note: From 0.17.1 you'll be able to do this on a DataFrameGroupBy too but for now it only works with Series and SeriesGroupBy.)

A .pl is a single script.

In .pm (Perl Module) you have functions that you can use from other Perl scripts:

A Perl module is a self-contained piece of Perl code that can be used by a Perl program or by other Perl modules. It is conceptually similar to a C link library, or a C++ class.

On Windows/Linux press Alt+F3.

THE “PARENT” SELECTOR

Right now, there is no option to select the parent of an element in CSS (not even CSS3). But with CSS4, the most important news in the current W3C draft is the support for the parent selector.

$ul li:hover{
    background: #fff;
}

Using the above, when hovering an list element, the whole unordered list will be highlighted by adding a white background to it.

Official documentation: https://www.w3.org/TR/2011/WD-selectors4-20110929/#overview (last row).

Within your click handler, the mistake is the .validate() method; it only initializes the plugin, it does not validate the form.

To eliminate the need to have a submit button within the form, use .valid() to trigger a validation check...

$('#btn').on('click', function() {
    $("#form1").valid();
});

jsFiddle Demo

.validate() - to initialize the plugin (with options) once on DOM ready.

.valid() - to check validation state (boolean value) or to trigger a validation test on the form at any time.

Otherwise, if you had a type="submit" button within the form container, you would not need a special click handler and the .valid() method, as the plugin would capture that automatically.

Demo without click handler

EDIT:

You also have two issues within your HTML...

<input id="field1" type="text" class="required">

• You don't need class="required" when declaring rules within .validate(). It's redundant and superfluous.

• The name attribute is missing. Rules are declared within .validate() by their name. The plugin depends upon unique name attributes to keep track of the inputs.

Should be...

<input name="field1" id="field1" type="text" />

Other solution:

def round_time(timestamp=None, lapse=0):
    """
    Round a timestamp to a lapse according to specified minutes

    Usage:

    >>> import datetime, math
    >>> round_time(datetime.datetime(2010, 6, 10, 3, 56, 23), 0)
    datetime.datetime(2010, 6, 10, 3, 56)
    >>> round_time(datetime.datetime(2010, 6, 10, 3, 56, 23), 1)
    datetime.datetime(2010, 6, 10, 3, 57)
    >>> round_time(datetime.datetime(2010, 6, 10, 3, 56, 23), -1)
    datetime.datetime(2010, 6, 10, 3, 55)
    >>> round_time(datetime.datetime(2019, 3, 11, 9, 22, 11), 3)
    datetime.datetime(2019, 3, 11, 9, 24)
    >>> round_time(datetime.datetime(2019, 3, 11, 9, 22, 11), 3*60)
    datetime.datetime(2019, 3, 11, 12, 0)
    >>> round_time(datetime.datetime(2019, 3, 11, 10, 0, 0), 3)
    datetime.datetime(2019, 3, 11, 10, 0)

    :param timestamp: Timestamp to round (default: now)
    :param lapse: Lapse to round in minutes (default: 0)
    """
    t = timestamp or datetime.datetime.now()  # type: Union[datetime, Any]
    surplus = datetime.timedelta(seconds=t.second, microseconds=t.microsecond)
    t -= surplus
    try:
        mod = t.minute % lapse
    except ZeroDivisionError:
        return t
    if mod:  # minutes % lapse != 0
        t += datetime.timedelta(minutes=math.ceil(t.minute / lapse) * lapse - t.minute)
    elif surplus != datetime.timedelta() or lapse < 0:
        t += datetime.timedelta(minutes=(t.minute / lapse + 1) * lapse - t.minute)
    return t

Hope this helps!

One approach:

(
  shopt -s nullglob
  files=(/home/edward/bank1/fiche/Test*)
  if [[ "${#files[@]}" -gt 0 ]] ; then
    echo found one
  else
    echo found none
  fi
)

Explanation:

• shopt -s nullglob will cause /home/edward/bank1/fiche/Test* to expand to nothing if no file matches that pattern. (Without it, it will be left intact.)
• ( ... ) sets up a subshell, preventing shopt -s nullglob from "escaping".
• files=(/home/edward/bank1/fiche/Test*) puts the file-list in an array named files. (Note that this is within the subshell only; files will not be accessible after the subshell exits.)
• "${#files[@]}" is the number of elements in this array.

Edited to address subsequent question ("What if i also need to check that these files have data in them and are not zero byte files"):

For this version, we need to use -s (as you did in your question), which also tests for the file's existence, so there's no point using shopt -s nullglob anymore: if no file matches the pattern, then -s on the pattern will be false. So, we can write:

(
  found_nonempty=''
  for file in /home/edward/bank1/fiche/Test* ; do
    if [[ -s "$file" ]] ; then
      found_nonempty=1
    fi
  done
  if [[ "$found_nonempty" ]] ; then
    echo found one
  else
    echo found none
  fi
)

(Here the ( ... ) is to prevent file and found_file from "escaping".)

For anybody reading this in 2019, after React 16.8 was released, take a look at the React Hooks. It really simplifies handling states in components. The docs are very well written with an example of exactly what you need.

In many cases it is linked to proxy problems. If so just config your git proxy

git config --global http.proxy HOST:PORT

You should create a StreamReader around the stream, then call ReadToEnd.

You should consider calling WebClient.DownloadString instead.

If you already have a wheel file (.whl) on your pc, then just go with the following code:

cd ../user
pip install file.whl

If you want to download a file from web, and then install it, go with the following in command line:

pip install package_name

or, if you have the url:

pip install http//websiteurl.com/filename.whl

This will for sure install the required file.

Note: I had to type pip2 instead of pip while using Python 2.

use underscore as :

_.difference(array1,array2)

This happens when code might been executed before and it's not showing up so you can add timeout() for it tp fire.

$(document).on('shown.bs.modal', function (event) {
      setTimeout(function(){
        alert("Hi");
      },1000); 
    });

C:\> wmic cpu get loadpercentage
LoadPercentage
0

Or

C:\> @for /f "skip=1" %p in ('wmic cpu get loadpercentage') do @echo %p%
4%

Think of it like this, every time you see a arrow, you replace it with function.
function parameters are defined before the arrow.
So in your example:

field => // function(field){}
e => { e.preventDefault(); } // function(e){e.preventDefault();}

and then together:

function (field) { 
    return function (e) { 
        e.preventDefault(); 
    };
}

From the docs:

// Basic syntax:
(param1, param2, paramN) => { statements }
(param1, param2, paramN) => expression
   // equivalent to:  => { return expression; }

// Parentheses are optional when there's only one argument:
singleParam => { statements }
singleParam => expression

if x is a vector with raw scores then scale(x) is a vector with standardized scores.

Or manually: (x-mean(x))/sd(x)

Like this?

In LINQ:

var sortedList = originalList.OrderBy(foo => !foo.AVC)
                             .ToList();

Or in-place:

originalList.Sort((foo1, foo2) => foo2.AVC.CompareTo(foo1.AVC));

As Jon Skeet says, the trick here is knowing that false is considered to be 'smaller' than true.

If you find that you are doing these ordering operations in lots of different places in your code, you might want to get your type Foo to implement the IComparable<Foo> and IComparable interfaces.

The following worked for me:

$("[id=attached_docs][value=123]")

1. Make sure the filename is correct (proper capitalisation, matching extension etc - as already suggested).

2. Use the Class.getResource method to locate your file in the classpath - don't rely on the current directory:

   URL url = insertionSort.class.getResource("10_Random");
   
   File file = new File(url.toURI());
   

3. Specify the absolute file path via command-line arguments:

   File file = new File(args[0]);
   

In Eclipse:

1. Choose "Run configurations"
2. Go to the "Arguments" tab
3. Put your "c:/my/file/is/here/10_Random.txt.or.whatever" into the "Program arguments" section

I had the "same" problem because I was writting

@GeneratedValue(strategy = GenerationType.IDENTITY)

I deleted that line due that I do not need it at the moment, I was testing with objects and so. I think it is <generator class="native" /> in your case

I do not have any controller and my API is not being accessed, it is only for testing (at the moment).

I may be late, but the way I did it was to create a hidden submit input, and calling it's click handler upon submit. Something like (using jquery for simplicity):

<input type="text" id="example" name="example" value="" required>
<button type="button"  onclick="submitform()" id="save">Save</button>
<input id="submit_handle" type="submit" style="display: none">

<script>
function submitform() {
    $('#submit_handle').click();
}
</script>

This solution uses jQuery. If you want to use same placeholder text for all text inputs, you can use

$('input:text').attr('placeholder','Some New Text');

And if you want different placeholders, you can use the element's id to change placeholder

$('#element1_id').attr('placeholder','Some New Text 1');
$('#element2_id').attr('placeholder','Some New Text 2');

You can use ymd from lubridate

lubridate::ymd(v)
#[1] "2008-11-01"

Or anytime::anydate

anytime::anydate(v)
#[1] "2008-11-01"

Right click on the ribbon and choose Customize the ribbon. From the Choose commands from: drop down, select Commands not in the ribbon.

That is where I found the Document location command.

Assume you were:

1. Reading a network file and got disconnected.
2. Reading a local file that was no longer available.
3. Using some stream to read data and some other process closed the stream.
4. Trying to read/write a file, but don't have permission.
5. Trying to write to a file, but disk space was no longer available.

There are many more examples, but these are the most common, in my experience.

If you want to print decimal variables:

wchar_t text_buffer[20] = { 0 }; //temporary buffer
swprintf(text_buffer, _countof(text_buffer), L"%d", your.variable); // convert
OutputDebugString(text_buffer); // print

Two different options to add item to an array without mutation

case ADD_ITEM :
    return { 
        ...state,
        arr: [...state.arr, action.newItem]
    }

OR

case ADD_ITEM :
    return { 
        ...state,
        arr: state.arr.concat(action.newItem)
    }

This should help:

function isNumber(n) {
  return !isNaN(parseFloat(n)) && isFinite(n);
}

Very good link: Validate decimal numbers in JavaScript - IsNumeric()

Classes as objects

Before understanding metaclasses, you need to master classes in Python. And Python has a very peculiar idea of what classes are, borrowed from the Smalltalk language.

In most languages, classes are just pieces of code that describe how to produce an object. That's kinda true in Python too:

>>> class ObjectCreator(object):
...       pass
...

>>> my_object = ObjectCreator()
>>> print(my_object)
<__main__.ObjectCreator object at 0x8974f2c>

But classes are more than that in Python. Classes are objects too.

Yes, objects.

As soon as you use the keyword class, Python executes it and creates an OBJECT. The instruction

>>> class ObjectCreator(object):
...       pass
...

creates in memory an object with the name "ObjectCreator".

This object (the class) is itself capable of creating objects (the instances), and this is why it's a class.

But still, it's an object, and therefore:

• you can assign it to a variable
• you can copy it
• you can add attributes to it
• you can pass it as a function parameter

e.g.:

>>> print(ObjectCreator) # you can print a class because it's an object
<class '__main__.ObjectCreator'>
>>> def echo(o):
...       print(o)
...
>>> echo(ObjectCreator) # you can pass a class as a parameter
<class '__main__.ObjectCreator'>
>>> print(hasattr(ObjectCreator, 'new_attribute'))
False
>>> ObjectCreator.new_attribute = 'foo' # you can add attributes to a class
>>> print(hasattr(ObjectCreator, 'new_attribute'))
True
>>> print(ObjectCreator.new_attribute)
foo
>>> ObjectCreatorMirror = ObjectCreator # you can assign a class to a variable
>>> print(ObjectCreatorMirror.new_attribute)
foo
>>> print(ObjectCreatorMirror())
<__main__.ObjectCreator object at 0x8997b4c>

Creating classes dynamically

Since classes are objects, you can create them on the fly, like any object.

First, you can create a class in a function using class:

>>> def choose_class(name):
...     if name == 'foo':
...         class Foo(object):
...             pass
...         return Foo # return the class, not an instance
...     else:
...         class Bar(object):
...             pass
...         return Bar
...
>>> MyClass = choose_class('foo')
>>> print(MyClass) # the function returns a class, not an instance
<class '__main__.Foo'>
>>> print(MyClass()) # you can create an object from this class
<__main__.Foo object at 0x89c6d4c>

But it's not so dynamic, since you still have to write the whole class yourself.

Since classes are objects, they must be generated by something.

When you use the class keyword, Python creates this object automatically. But as with most things in Python, it gives you a way to do it manually.

Remember the function type? The good old function that lets you know what type an object is:

>>> print(type(1))
<type 'int'>
>>> print(type("1"))
<type 'str'>
>>> print(type(ObjectCreator))
<type 'type'>
>>> print(type(ObjectCreator()))
<class '__main__.ObjectCreator'>

Well, type has a completely different ability, it can also create classes on the fly. type can take the description of a class as parameters, and return a class.

(I know, it's silly that the same function can have two completely different uses according to the parameters you pass to it. It's an issue due to backward compatibility in Python)

type works this way:

type(name, bases, attrs)

Where:

• name: name of the class
• bases: tuple of the parent class (for inheritance, can be empty)
• attrs: dictionary containing attributes names and values

e.g.:

>>> class MyShinyClass(object):
...       pass

can be created manually this way:

>>> MyShinyClass = type('MyShinyClass', (), {}) # returns a class object
>>> print(MyShinyClass)
<class '__main__.MyShinyClass'>
>>> print(MyShinyClass()) # create an instance with the class
<__main__.MyShinyClass object at 0x8997cec>

You'll notice that we use "MyShinyClass" as the name of the class and as the variable to hold the class reference. They can be different, but there is no reason to complicate things.

type accepts a dictionary to define the attributes of the class. So:

>>> class Foo(object):
...       bar = True

Can be translated to:

>>> Foo = type('Foo', (), {'bar':True})

And used as a normal class:

>>> print(Foo)
<class '__main__.Foo'>
>>> print(Foo.bar)
True
>>> f = Foo()
>>> print(f)
<__main__.Foo object at 0x8a9b84c>
>>> print(f.bar)
True

And of course, you can inherit from it, so:

>>>   class FooChild(Foo):
...         pass

would be:

>>> FooChild = type('FooChild', (Foo,), {})
>>> print(FooChild)
<class '__main__.FooChild'>
>>> print(FooChild.bar) # bar is inherited from Foo
True

Eventually, you'll want to add methods to your class. Just define a function with the proper signature and assign it as an attribute.

>>> def echo_bar(self):
...       print(self.bar)
...
>>> FooChild = type('FooChild', (Foo,), {'echo_bar': echo_bar})
>>> hasattr(Foo, 'echo_bar')
False
>>> hasattr(FooChild, 'echo_bar')
True
>>> my_foo = FooChild()
>>> my_foo.echo_bar()
True

And you can add even more methods after you dynamically create the class, just like adding methods to a normally created class object.

>>> def echo_bar_more(self):
...       print('yet another method')
...
>>> FooChild.echo_bar_more = echo_bar_more
>>> hasattr(FooChild, 'echo_bar_more')
True

You see where we are going: in Python, classes are objects, and you can create a class on the fly, dynamically.

This is what Python does when you use the keyword class, and it does so by using a metaclass.

What are metaclasses (finally)

Metaclasses are the 'stuff' that creates classes.

You define classes in order to create objects, right?

But we learned that Python classes are objects.

Well, metaclasses are what create these objects. They are the classes' classes, you can picture them this way:

MyClass = MetaClass()
my_object = MyClass()

You've seen that type lets you do something like this:

MyClass = type('MyClass', (), {})

It's because the function type is in fact a metaclass. type is the metaclass Python uses to create all classes behind the scenes.

Now you wonder why the heck is it written in lowercase, and not Type?

Well, I guess it's a matter of consistency with str, the class that creates strings objects, and int the class that creates integer objects. type is just the class that creates class objects.

You see that by checking the __class__ attribute.

Everything, and I mean everything, is an object in Python. That includes ints, strings, functions and classes. All of them are objects. And all of them have been created from a class:

>>> age = 35
>>> age.__class__
<type 'int'>
>>> name = 'bob'
>>> name.__class__
<type 'str'>
>>> def foo(): pass
>>> foo.__class__
<type 'function'>
>>> class Bar(object): pass
>>> b = Bar()
>>> b.__class__
<class '__main__.Bar'>

Now, what is the __class__ of any __class__ ?

>>> age.__class__.__class__
<type 'type'>
>>> name.__class__.__class__
<type 'type'>
>>> foo.__class__.__class__
<type 'type'>
>>> b.__class__.__class__
<type 'type'>

So, a metaclass is just the stuff that creates class objects.

You can call it a 'class factory' if you wish.

type is the built-in metaclass Python uses, but of course, you can create your own metaclass.

The __metaclass__ attribute

In Python 2, you can add a __metaclass__ attribute when you write a class (see next section for the Python 3 syntax):

class Foo(object):
    __metaclass__ = something...
    [...]

If you do so, Python will use the metaclass to create the class Foo.

Careful, it's tricky.

You write class Foo(object) first, but the class object Foo is not created in memory yet.

Python will look for __metaclass__ in the class definition. If it finds it, it will use it to create the object class Foo. If it doesn't, it will use type to create the class.

Read that several times.

When you do:

class Foo(Bar):
    pass

Python does the following:

Is there a __metaclass__ attribute in Foo?

If yes, create in-memory a class object (I said a class object, stay with me here), with the name Foo by using what is in __metaclass__.

If Python can't find __metaclass__, it will look for a __metaclass__ at the MODULE level, and try to do the same (but only for classes that don't inherit anything, basically old-style classes).

Then if it can't find any __metaclass__ at all, it will use the Bar's (the first parent) own metaclass (which might be the default type) to create the class object.

Be careful here that the __metaclass__ attribute will not be inherited, the metaclass of the parent (Bar.__class__) will be. If Bar used a __metaclass__ attribute that created Bar with type() (and not type.__new__()), the subclasses will not inherit that behavior.

Now the big question is, what can you put in __metaclass__?

The answer is something that can create a class.

And what can create a class? type, or anything that subclasses or uses it.

Metaclasses in Python 3

The syntax to set the metaclass has been changed in Python 3:

class Foo(object, metaclass=something):
    ...

i.e. the __metaclass__ attribute is no longer used, in favor of a keyword argument in the list of base classes.

The behavior of metaclasses however stays largely the same.

One thing added to metaclasses in Python 3 is that you can also pass attributes as keyword-arguments into a metaclass, like so:

class Foo(object, metaclass=something, kwarg1=value1, kwarg2=value2):
    ...

Read the section below for how python handles this.

Custom metaclasses

The main purpose of a metaclass is to change the class automatically, when it's created.

You usually do this for APIs, where you want to create classes matching the current context.

Imagine a stupid example, where you decide that all classes in your module should have their attributes written in uppercase. There are several ways to do this, but one way is to set __metaclass__ at the module level.

This way, all classes of this module will be created using this metaclass, and we just have to tell the metaclass to turn all attributes to uppercase.

Luckily, __metaclass__ can actually be any callable, it doesn't need to be a formal class (I know, something with 'class' in its name doesn't need to be a class, go figure... but it's helpful).

So we will start with a simple example, by using a function.

# the metaclass will automatically get passed the same argument
# that you usually pass to `type`
def upper_attr(future_class_name, future_class_parents, future_class_attrs):
    """
      Return a class object, with the list of its attribute turned
      into uppercase.
    """
    # pick up any attribute that doesn't start with '__' and uppercase it
    uppercase_attrs = {
        attr if attr.startswith("__") else attr.upper(): v
        for attr, v in future_class_attrs.items()
    }

    # let `type` do the class creation
    return type(future_class_name, future_class_parents, uppercase_attrs)

__metaclass__ = upper_attr # this will affect all classes in the module

class Foo(): # global __metaclass__ won't work with "object" though
    # but we can define __metaclass__ here instead to affect only this class
    # and this will work with "object" children
    bar = 'bip'

Let's check:

>>> hasattr(Foo, 'bar')
False
>>> hasattr(Foo, 'BAR')
True
>>> Foo.BAR
'bip'

Now, let's do exactly the same, but using a real class for a metaclass:

# remember that `type` is actually a class like `str` and `int`
# so you can inherit from it
class UpperAttrMetaclass(type):
    # __new__ is the method called before __init__
    # it's the method that creates the object and returns it
    # while __init__ just initializes the object passed as parameter
    # you rarely use __new__, except when you want to control how the object
    # is created.
    # here the created object is the class, and we want to customize it
    # so we override __new__
    # you can do some stuff in __init__ too if you wish
    # some advanced use involves overriding __call__ as well, but we won't
    # see this
    def __new__(upperattr_metaclass, future_class_name,
                future_class_parents, future_class_attrs):
        uppercase_attrs = {
            attr if attr.startswith("__") else attr.upper(): v
            for attr, v in future_class_attrs.items()
        }
        return type(future_class_name, future_class_parents, uppercase_attrs)

Let's rewrite the above, but with shorter and more realistic variable names now that we know what they mean:

class UpperAttrMetaclass(type):
    def __new__(cls, clsname, bases, attrs):
        uppercase_attrs = {
            attr if attr.startswith("__") else attr.upper(): v
            for attr, v in attrs.items()
        }
        return type(clsname, bases, uppercase_attrs)

You may have noticed the extra argument cls. There is nothing special about it: __new__ always receives the class it's defined in, as the first parameter. Just like you have self for ordinary methods which receive the instance as the first parameter, or the defining class for class methods.

But this is not proper OOP. We are calling type directly and we aren't overriding or calling the parent's __new__. Let's do that instead:

class UpperAttrMetaclass(type):
    def __new__(cls, clsname, bases, attrs):
        uppercase_attrs = {
            attr if attr.startswith("__") else attr.upper(): v
            for attr, v in attrs.items()
        }
        return type.__new__(cls, clsname, bases, uppercase_attrs)

We can make it even cleaner by using super, which will ease inheritance (because yes, you can have metaclasses, inheriting from metaclasses, inheriting from type):

class UpperAttrMetaclass(type):
    def __new__(cls, clsname, bases, attrs):
        uppercase_attrs = {
            attr if attr.startswith("__") else attr.upper(): v
            for attr, v in attrs.items()
        }
        return super(UpperAttrMetaclass, cls).__new__(
            cls, clsname, bases, uppercase_attrs)

Oh, and in python 3 if you do this call with keyword arguments, like this:

class Foo(object, metaclass=MyMetaclass, kwarg1=value1):
    ...

It translates to this in the metaclass to use it:

class MyMetaclass(type):
    def __new__(cls, clsname, bases, dct, kwargs1=default):
        ...

That's it. There is really nothing more about metaclasses.

The reason behind the complexity of the code using metaclasses is not because of metaclasses, it's because you usually use metaclasses to do twisted stuff relying on introspection, manipulating inheritance, vars such as __dict__, etc.

Indeed, metaclasses are especially useful to do black magic, and therefore complicated stuff. But by themselves, they are simple:

• intercept a class creation
• modify the class
• return the modified class

Why would you use metaclasses classes instead of functions?

Since __metaclass__ can accept any callable, why would you use a class since it's obviously more complicated?

There are several reasons to do so:

• The intention is clear. When you read UpperAttrMetaclass(type), you know what's going to follow
• You can use OOP. Metaclass can inherit from metaclass, override parent methods. Metaclasses can even use metaclasses.
• Subclasses of a class will be instances of its metaclass if you specified a metaclass-class, but not with a metaclass-function.
• You can structure your code better. You never use metaclasses for something as trivial as the above example. It's usually for something complicated. Having the ability to make several methods and group them in one class is very useful to make the code easier to read.
• You can hook on __new__, __init__ and __call__. Which will allow you to do different stuff, Even if usually you can do it all in __new__, some people are just more comfortable using __init__.
• These are called metaclasses, damn it! It must mean something!

Why would you use metaclasses?

Now the big question. Why would you use some obscure error-prone feature?

Well, usually you don't:

Metaclasses are deeper magic that 99% of users should never worry about it. If you wonder whether you need them, you don't (the people who actually need them to know with certainty that they need them and don't need an explanation about why).

Python Guru Tim Peters

The main use case for a metaclass is creating an API. A typical example of this is the Django ORM. It allows you to define something like this:

class Person(models.Model):
    name = models.CharField(max_length=30)
    age = models.IntegerField()

But if you do this:

person = Person(name='bob', age='35')
print(person.age)

It won't return an IntegerField object. It will return an int, and can even take it directly from the database.

This is possible because models.Model defines __metaclass__ and it uses some magic that will turn the Person you just defined with simple statements into a complex hook to a database field.

Django makes something complex look simple by exposing a simple API and using metaclasses, recreating code from this API to do the real job behind the scenes.

The last word

First, you know that classes are objects that can create instances.

Well, in fact, classes are themselves instances. Of metaclasses.

>>> class Foo(object): pass
>>> id(Foo)
142630324

Everything is an object in Python, and they are all either instance of classes or instances of metaclasses.

Except for type.

type is actually its own metaclass. This is not something you could reproduce in pure Python, and is done by cheating a little bit at the implementation level.

Secondly, metaclasses are complicated. You may not want to use them for very simple class alterations. You can change classes by using two different techniques:

• monkey patching
• class decorators

99% of the time you need class alteration, you are better off using these.

But 98% of the time, you don't need class alteration at all.

Try using the following on the JavaScript side:

window.location.href = '@Url.Action("Index", "Controller")';

If you want to pass parameters to the @Url.Action, you can do this:

var reportDate = $("#inputDateId").val();//parameter
var url = '@Url.Action("Index", "Controller", new {dateRequested = "findme"})';
window.location.href = url.replace('findme', reportDate);

You've got a couple regexes now which will do what you want, so that's adequately covered.

What hasn't been mentioned is why your attempt won't work: Inside a character class, $ (as well as ^, ., and /) has no special meaning, so [/$] matches either a literal / or a literal $ rather than terminating the regex (/) or matching end-of-line ($).

From See Java Static Variable Methods:

• It is a variable which belongs to the class and not to object(instance)
• Static variables are initialized only once , at the start of the execution. These variables will be initialized first, before the initialization of any instance variables
• A single copy to be shared by all instances of the class
• A static variable can be accessed directly by the class name and doesn’t need any object.

Instance and class (static) variables are automatically initialized to standard default values if you fail to purposely initialize them. Although local variables are not automatically initialized, you cannot compile a program that fails to either initialize a local variable or assign a value to that local variable before it is used.

What the compiler actually does is to internally produce a single class initialization routine that combines all the static variable initializers and all of the static initializer blocks of code, in the order that they appear in the class declaration. This single initialization procedure is run automatically, one time only, when the class is first loaded.

In case of inner classes, they can not have static fields

An inner class is a nested class that is not explicitly or implicitly declared static.

...

Inner classes may not declare static initializers (§8.7) or member interfaces...

Inner classes may not declare static members, unless they are constant variables...

See JLS 8.1.3 Inner Classes and Enclosing Instances

final fields in Java can be initialized separately from their declaration place this is however can not be applicable to static final fields. See the example below.

final class Demo
{
    private final int x;
    private static final int z;  //must be initialized here.

    static 
    {
        z = 10;  //It can be initialized here.
    }

    public Demo(int x)
    {
        this.x=x;  //This is possible.
        //z=15; compiler-error - can not assign a value to a final variable z
    }
}

This is because there is just one copy of the static variables associated with the type, rather than one associated with each instance of the type as with instance variables and if we try to initialize z of type static final within the constructor, it will attempt to reinitialize the static final type field z because the constructor is run on each instantiation of the class that must not occur to static final fields.

echo implode(",", array_keys($companies->toArray()));

$companies->toArray() -- this is just in case if your $variable is an object, otherwise just pass $companies.

That's it!

@DougW has clearly answered this question, but I still like to add some codes here to explain Doug's points. (And correct errors in the code above)

Solution 1: URL-encode the POST data with a content-type header :application/x-www-form-urlencoded .

Note: you do not need to urlencode $_POST[] fields one by one, http_build_query() function can do the urlencoding job nicely.

$fields = array(
    'mediaupload'=>$file_field,
    'username'=>$_POST["username"],
    'password'=>$_POST["password"],
    'latitude'=>$_POST["latitude"],
    'longitude'=>$_POST["longitude"],
    'datetime'=>$_POST["datetime"],
    'category'=>$_POST["category"],
    'metacategory'=>$_POST["metacategory"],
    'caption'=>$_POST["description"]
);

$fields_string = http_build_query($fields);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_POSTFIELDS,$fields_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = curl_exec($ch);

Solution 2: Pass the array directly as the post data without URL-encoding, while the Content-Type header will be set to multipart/form-data.

$fields = array(
        'mediaupload'=>$file_field,
        'username'=>$_POST["username"],
        'password'=>$_POST["password"],
        'latitude'=>$_POST["latitude"],
        'longitude'=>$_POST["longitude"],
        'datetime'=>$_POST["datetime"],
        'category'=>$_POST["category"],
        'metacategory'=>$_POST["metacategory"],
        'caption'=>$_POST["description"]
    );

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL,$url);
    curl_setopt($ch, CURLOPT_POST,1);
    curl_setopt($ch, CURLOPT_POSTFIELDS,$fields);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $response = curl_exec($ch);

Both code snippets work, but using different HTTP headers and bodies.

I think this is the more simpler approach:

1. Install mySQL-Shell package from mySQL site
2. Run mysqlsh (should be added to your path by default after install)
3. Connect to your database server like so: MySQL JS > \connect --mysql [username]@[endpoint/server]:3306
4. Switch to SQL Mode by typing "\sql" in your prompt
5. The console should print out the following to let you know you are good to go:

Switching to SQL mode... Commands end with ;

Go forth and do great things! :)

The best solution lies in the Project Manifest file (AndroidManifest.xml), add the following attribute in the activity construct

android:windowSoftInputMode="stateHidden"

Example:

    <activity android:name=".MainActivity" 
              android:windowSoftInputMode="stateHidden" />

Description:

• The state of the soft keyboard — whether it is hidden or visible — when the activity becomes the focus of user attention.
• The adjustment made to the activity's main window — whether it is resized smaller to make room for the soft keyboard or whether its contents pan to make the current focus visible when part of the window is covered by the soft keyboard.

Introduced in:

• API Level 3.

Link to the Docs

Note: Values set here (other than "stateUnspecified" and "adjustUnspecified") override values set in the theme.

Swanand's answer is great.

if you are using FactoryGirl, you can use its build method to generate the attribute hash without the key id. e.g.

build(:post).attributes

import java.util.Scanner;
import java.io.*;

then

try {

    Scanner input = new Scanner(new File("lettered.in"));

    int dataCollect = input.nextInt();

    int sum = 0;

    String lineInput = "";

    for (int i = 0; i <= dataCollect; i++) {

        while (input.hasNext()) {

            lineInput = input.next();
            char lineArray[] = lineInput.toCharArray();

            for (int j = 0; j < lineArray.length; j++) {

                switch(lineArray[j]) {
                case 'A': {
                    sum += 1;
                    continue;
                }
                case 'B': {
                    sum += 10;
                    continue;
                }
                case 'C': {
                    sum += 100;
                }
                case 'D': {
                    sum += 1000;
                    continue;
                }
                case 'E': {
                    sum += 10000;
                    continue;
                }
                case 'F': {
                    sum += 100000;
                    continue;
                }
                case: 'G': {
                    sum += 1000000;
                    continue;
                }
                case 'X': {
                    System.out.println(sum);
                    sum = 0;
                    continue;
                }
                default: {}
                }
            }
        }
    }
} catch (FileNotFoundException fileNotFound) {
    System.out.println("File has not been found.");
}

But if I am the one who designs the API and gets to choose the data types, then what are the guidelines?

For input parameters it's best to accept the most generic interface that does what you need. It is seldom just a tuple or list - more often it's sequence, sliceable or even iterable. Python's duck typing usually gets it for free, unless you explicitly check input types. Don't do that unless absolutely unavoidable.

For the data that you produce (output parameters) just return what's most convenient for you, e.g. return whatever datatype you keep or whatever your helper function returns.

One thing to keep in mind is to avoid returning a list (or any other mutable) that's part of your state, e.g.

class ThingsKeeper
    def __init__(self):
        self.__things = []

    def things(self):
        return self.__things  #outside objects can now modify your state

    def safer(self):
        return self.__things[:]  #it's copy-on-write, shouldn't hurt performance

Try this in pure bash:

FRED="/some/random/file.csv:some string"
a=${FRED%:*}
echo $a

Here is some documentation that helps.

add this line at the top of string.xml

<?xml version="1.0" encoding="utf-8"?>

and use

'\n'

from where you want to break your line.

ex. <string> Hello world. \n its awesome. <string>

Output:

Hello world.
its awesome.

I've created a way to do this with a better interface.

• db.collection.find({ ... }).update({ ... }) -- multi update
• db.collection.find({ ... }).replace({ ... }) -- single replacement
• db.collection.find({ ... }).upsert({ ... }) -- single upsert
• db.collection.find({ ... }).remove() -- multi remove

You can also apply limit, skip, sort to the updates and removes by chaining them in beforehand.

If you are interested, check out Mongo-Hacker

The best way to prevent direct access to files is to place them outside of the web-server document root (usually, one level above). You can still include them, but there is no possibility of someone accessing them through an http request.

I usually go all the way, and place all of my PHP files outside of the document root aside from the bootstrap file - a lone index.php in the document root that starts routing the entire website/application.

Correct expression is

"source " + (DT_STR,4,1252)DATEPART( "yyyy" , getdate() ) + "-" +
RIGHT("0" + (DT_STR,4,1252)DATEPART( "mm" , getdate() ), 2) + "-" +
RIGHT("0" + (DT_STR,4,1252)DATEPART( "dd" , getdate() ), 2) +".CSV"

Simply use map function:

var arrOfObj = arrOfObj.map(function(element){
   element.active = true;
   return element;
}

Map is pretty decent on compatibility: you can be reasonably safe from IE <= 9.

However, if you are 100% sure your users will use ES6 Compatible browser, you can shorten that function with arrow functions, as @Sergey Panfilov has suggested.

You have configured the auth.php and used members table for authentication but there is no user_email field in the members table so, Laravel says

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'user_email' in 'where clause' (SQL: select * from members where user_email = ? limit 1) (Bindings: array ( 0 => '[email protected]', ))

Because, it tries to match the user_email in the members table and it's not there. According to your auth configuration, laravel is using members table for authentication not users table.

Try this:

function createcodes() {

    $('.authors-list tr').each(function () {
        //processing this row
        //how to process each cell(table td) where there is checkbox
        $(this).find('td input:checked').each(function () {

             // it is checked, your code here...
        });
    });
}

It is illegal to nest EL expressions: you should inline them. Using JSTL is perfectly valid in your situation. Correcting the mistake, you'll make the code working:

<html xmlns="http://www.w3.org/1999/xhtml" xmlns:c="http://java.sun.com/jstl/core">
    <c:if test="#{not empty user or user.userId eq 0}">
        <a href="Images/thumb_02.jpg" target="_blank" ></a>
        <img src="Images/thumb_02.jpg" />
    </c:if>
    <c:if test="#{empty user or user.userId eq 0}">
        <a href="/DisplayBlobExample?userId=#{user.userId}" target="_blank"></a>
        <img src="/DisplayBlobExample?userId=#{user.userId}" />
    </c:if>
</html>

Another solution is to specify all the conditions you want inside an EL of one element. Though it could be heavier and less readable, here it is:

<a href="#{not empty user or user.userId eq 0 ? '/Images/thumb_02.jpg' : '/DisplayBlobExample?userId='}#{not empty user or user.userId eq 0 ? '' : user.userId}" target="_blank"></a>
<img src="#{not empty user or user.userId eq 0 ? '/Images/thumb_02.jpg' : '/DisplayBlobExample?userId='}#{not empty user or user.userId eq 0 ? '' : user.userId}" target="_blank"></img>

* offsetHeight is a measurement in pixels of the element's CSS height, including border, padding and the element's horizontal scrollbar.

* clientHeight property returns the viewable height of an element in pixels, including padding, but not the border, scrollbar or margin.

* scrollHeight value is equal to the minimum height the element would require in order to fit all the content in the viewport without using a vertical scrollbar. The height is measured in the same way as clientHeight: it includes the element's padding, but not its border, margin or horizontal scrollbar.

Same is the case for all of these with width instead of height.

You can use the JavaScript String concat() Method,

var str1 = "Hello ";
var str2 = "world!";
var res = str1.concat(str2); //will return "Hello world!"

Its syntax is:

string.concat(string1, string2, ..., stringX)

I personally prefer Confucious.

It is nice, as it doesn't require any external dependencies, it's tiny - only 16K, and automatically loads your ini file on initialization. E.g.

Configurable config = Configuration.getInstance();  
String host = config.getStringValue("host");   
int port = config.getIntValue("port"); 
new Connection(host, port);

A string can be escaped comprehensively and compactly using JSON.stringify. It is part of JavaScript as of ECMAScript 5 and supported by major newer browser versions.

str = JSON.stringify(String(str));
str = str.substring(1, str.length-1);

Using this approach, also special chars as the null byte, unicode characters and line breaks \r and \n are escaped properly in a relatively compact statement.

keras.callbacks.TensorBoard(log_dir='./Graph', histogram_freq=0,  
          write_graph=True, write_images=True)

This line creates a Callback Tensorboard object, you should capture that object and give it to the fit function of your model.

tbCallBack = keras.callbacks.TensorBoard(log_dir='./Graph', histogram_freq=0, write_graph=True, write_images=True)
...
model.fit(...inputs and parameters..., callbacks=[tbCallBack])

This way you gave your callback object to the function. It will be run during the training and will output files that can be used with tensorboard.

If you want to visualize the files created during training, run in your terminal

tensorboard --logdir path_to_current_dir/Graph 

Hope this helps !

You can do this with using storyboard/XIB also

1. Go To storyboard -> Select your viewController -> Select your table
2. Select the "Style" property in interface-builder
3. Select the "Grouped"
4. Done

The classpath setting of the compiler plugin are two args. Changed it like this and it worked for me:

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
  <compilerArgs>
     <arg>-cp</arg>
     <arg>${cp}:${basedir}/lib/bad.jar</arg>
  </compilerArgs>
</configuration>

I used the gmavenplus-plugin to read the path and create the property 'cp':

      <plugin>
    <!--
      Use Groovy to read classpath and store into
      file named value of property <cpfile>

      In second step use Groovy to read the contents of
      the file into a new property named <cp>

      In the compiler plugin this is used to create a
      valid classpath
    -->
    <groupId>org.codehaus.gmavenplus</groupId>
    <artifactId>gmavenplus-plugin</artifactId>
    <version>1.12.0</version>
    <dependencies>
      <dependency>
        <groupId>org.codehaus.groovy</groupId>
        <artifactId>groovy-all</artifactId>
        <!-- any version of Groovy \>= 1.5.0 should work here -->
        <version>3.0.6</version>
        <type>pom</type>
        <scope>runtime</scope>
      </dependency>
    </dependencies>
    <executions>
      <execution>
        <id>read-classpath</id>
        <phase>validate</phase>
        <goals>
          <goal>execute</goal>
        </goals>
      </execution>

    </executions>
    <configuration>
      <scripts>
        <script><![CDATA[
                def file = new File(project.properties.cpfile)
                /* create a new property named 'cp'*/
                project.properties.cp = file.getText()
                println '<<< Retrieving classpath into new property named <cp> >>>'
                println 'cp = ' + project.properties.cp
              ]]></script>
      </scripts>
    </configuration>
  </plugin>

I had a similar issue. The Maven projects have different structure than "Dynamic Web Projects". Eclipse knows only how to deploy the Dynamic Web Projects (project structure used by Web Tools Platform).

In order to solve this and tell Eclipse how to deploy a "maven style" projects, you have to install the M2E Eclipse WTP plugin (I suppose you are already using the m2e plugin).

To install: Preferences->Maven->Discovery->Open Catalog and choose the WTP plugin.

After reinstalling, you will be able to "run on server" those projects which are maven web projects.

Hope that helps,

In general, I break lines before operators, and indent the subsequent lines:

Map<long parameterization> longMap
    = new HashMap<ditto>();

String longString = "some long text"
                  + " some more long text";

To me, the leading operator clearly conveys that "this line was continued from something else, it doesn't stand on its own." Other people, of course, have different preferences.

This does it:

Do
   c = c + 1
Loop While Cells(c, "A").Value <> ""

'prints the last empty row
Debug.Print c

I stumbled upon this old listing pondering this same question. My band-aid for this same question was to make my header text into a link. I then changed the color and removed text decoration with CSS. Now to make the entire header picture a link, I expanded the padding of the anchor tag until it reached close to the edge of the header image.... This worked to my satisfaction, and I figured i would share.

Actually I think that more general approach to loop through dictionary is to use iteritems():

# get tuples of term, courses
for term, term_courses in courses.iteritems():
    # get tuples of course number, info
    for course, info in term_courses.iteritems():
        # loop through info
        for k, v in info.iteritems():
            print k, v

output:

assistant Peter C.
prereq cs101
...
name Programming a Robotic Car
teacher Sebastian

Or, as Matthias mentioned in comments, if you don't need keys, you can just use itervalues():

for term_courses in courses.itervalues():
    for info in term_courses.itervalues():
        for k, v in info.iteritems():
            print k, v

For disk space, if you have Java 6, you can use the getTotalSpace and getFreeSpace methods on File. If you're not on Java 6, I believe you can use Apache Commons IO to get some of the way there.

I don't know of any cross platform way to get CPU usage or Memory usage I'm afraid.

You can use something simpler:

if(!var){
    console.log('var is false'); 
}

Yes. You can do:

gdb program_name program_pid

A shortcut would be (assuming only one instance is running):

gdb program_name `pidof program_name`

I have faced this issue when I introduced additional supporting libraries in my project IntelliJ IDEA

So for me "File" -> "Invalidate Caches...", and select "Invalidate and Restart" option to fix this.

Call a static method from an instance:

function Clazz() {};
Clazz.staticMethod = function() {
    alert('STATIC!!!');
};

Clazz.prototype.func = function() {
    this.constructor.staticMethod();
}

var obj = new Clazz();
obj.func(); // <- Alert's "STATIC!!!"

Simple Javascript Class Project: https://github.com/reduardo7/sjsClass

ENOENT means it's not there.

Just update your code to:

File.open(File.dirname(__FILE__) + '/text.txt').each {|line| puts line}

well, char * means a pointer point to char, it is different from char array.

char amessage[] = "this is an array";  /* define an array*/
char *pmessage = "this is a pointer"; /* define a pointer*/

And, char ** means a pointer point to a char pointer.

You can look some books about details about pointer and array.

If you have a new database and you make a fresh clean import, the problem may come from inserting data that contains a '0' incrementation and this would transform to '1' with AUTO_INCREMENT and cause this error.

My solution was to use in the sql import file.

SET SESSION sql_mode='NO_AUTO_VALUE_ON_ZERO';

I'm sure this question should have a more general answer with some reusable code that works with cookies as key-value pairs.

This snippet is taken from MDN and probably is trustable. This is UTF-safe object for work with cookies:

var docCookies = {
  getItem: function (sKey) {
    return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1")) || null;
  },
  setItem: function (sKey, sValue, vEnd, sPath, sDomain, bSecure) {
    if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) { return false; }
    var sExpires = "";
    if (vEnd) {
      switch (vEnd.constructor) {
        case Number:
          sExpires = vEnd === Infinity ? "; expires=Fri, 31 Dec 9999 23:59:59 GMT" : "; max-age=" + vEnd;
          break;
        case String:
          sExpires = "; expires=" + vEnd;
          break;
        case Date:
          sExpires = "; expires=" + vEnd.toUTCString();
          break;
      }
    }
    document.cookie = encodeURIComponent(sKey) + "=" + encodeURIComponent(sValue) + sExpires + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "") + (bSecure ? "; secure" : "");
    return true;
  },
  removeItem: function (sKey, sPath, sDomain) {
    if (!sKey || !this.hasItem(sKey)) { return false; }
    document.cookie = encodeURIComponent(sKey) + "=; expires=Thu, 01 Jan 1970 00:00:00 GMT" + ( sDomain ? "; domain=" + sDomain : "") + ( sPath ? "; path=" + sPath : "");
    return true;
  },
  hasItem: function (sKey) {
    return (new RegExp("(?:^|;\\s*)" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=")).test(document.cookie);
  },
  keys: /* optional method: you can safely remove it! */ function () {
    var aKeys = document.cookie.replace(/((?:^|\s*;)[^\=]+)(?=;|$)|^\s*|\s*(?:\=[^;]*)?(?:\1|$)/g, "").split(/\s*(?:\=[^;]*)?;\s*/);
    for (var nIdx = 0; nIdx < aKeys.length; nIdx++) { aKeys[nIdx] = decodeURIComponent(aKeys[nIdx]); }
    return aKeys;
  }
};

Mozilla has some tests to prove this works in all cases.

There is an alternative snippet here:

Just add the number of slide ! it work with markdown ioslides and revealjs presentation

## Table of Contents

 1. [introduction](#3)
 2. [section one](#5)

You are calling:

JSON.parse(scatterSeries)

But when you defined scatterSeries, you said:

var scatterSeries = []; 

When you try to parse it as JSON it is converted to a string (""), which is empty, so you reach the end of the string before having any of the possible content of a JSON text.

scatterSeries is not JSON. Do not try to parse it as JSON.

data is not JSON either (getJSON will parse it as JSON automatically).

ch is JSON … but shouldn't be. You should just create a plain object in the first place:

var ch = {
    "name": "graphe1",
    "items": data.results[1]
};

scatterSeries.push(ch);

In short, for what you are doing, you shouldn't have JSON.parse anywhere in your code. The only place it should be is in the jQuery library itself.

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

You can achieve that using DATE_FORMAT() (click the link for more other formats)

SELECT DATE_FORMAT(colName, '%Y-%m-%d') DATEONLY, 
       DATE_FORMAT(colName,'%H:%i:%s') TIMEONLY

SQLFiddle Demo

Heads up that FLUSHALL may be overkill. FLUSHDB is the one to flush a database only. FLUSHALL will wipe out the entire server. As in every database on the server. Since the question was about flushing a database I think this is an important enough distinction to merit a separate answer.

Just saw this video today: Recursion 'Super Power' (in Python) - Computerphile and I think we should definitely have Professor Thorsten Altenkirch's code in here as its a very beautiful and elegant piece of recursion code and its not always that we have a quality video to show in an answer.

def move(f,t) : 
    print("move disc from {} to {}!".format(f,t))

def hanoi(n,f,h,t) : 
    if n==0 : 
        pass
    else :
        hanoi(n-1,f,t,h)
        move(f,t)
        hanoi(n-1,h,f,t)

our hanoi function has 4 parameters:

• n: number of discs
• f: origin where discs are (from)
• h: intermediate step 'via' (helper)
• t: final position where we want the discs to be in the end (target)

>>> hanoi(4,"A","B","C")
move disc from A to B!
move disc from A to C!
move disc from B to C!
move disc from A to B!
move disc from C to A!
move disc from C to B!
move disc from A to B!
move disc from A to C!
move disc from B to C!
move disc from B to A!
move disc from C to A!
move disc from B to C!
move disc from A to B!
move disc from A to C!
move disc from B to C!

Hibernate defines five types of identifier generation strategies:

AUTO - either identity column, sequence or table depending on the underlying DB

TABLE - table holding the id

IDENTITY - identity column

SEQUENCE - sequence

identity copy – the identity is copied from another entity

Example using Table

@Id
@GeneratedValue(strategy=GenerationType.TABLE , generator="employee_generator")
@TableGenerator(name="employee_generator", 
                table="pk_table", 
                pkColumnName="name", 
                valueColumnName="value",                            
                allocationSize=100) 
@Column(name="employee_id")
private Long employeeId;

for more details, check the link.

As explained above by @kris, depending on the region configurations of MS Excel it won't interpret the comma as the separator character. In my case I had to change it to semi-colon

If you want to check quietly via $? without the hassle of grep'ing wget's output you can use:

wget -q "http://blah.meh.com/my/path" -O /dev/null

Works even on URLs with just a path but has the disadvantage that something's really downloaded so this is not recommended when checking big files for existence.

I had found a particular case where swiping (ADB shell input touchscreen swipe ... ) to unlock the home screen doesn't work. More exactly for Acer Z160 and Acer S57. The phones are history but still, they need to be taken into consideration by us developers. Here is the code source that solved my problem. I had made my app to start with the device. and in the "onCreate" function I had changed temporarily the lock type.

Also, just in case google drive does something to the zip file I will post fragments of that code below.

AndroidManifest:

    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        package="com.example.gresanuemanuelvasi.test_wakeup">
        <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
        <uses-permission android:name="android.permission.DISABLE_KEYGUARD" />
        <application
            android:allowBackup="true"
            android:icon="@mipmap/ic_launcher"
            android:label="@string/app_name"
            android:roundIcon="@mipmap/ic_launcher_round"
            android:supportsRtl="true"
            android:theme="@style/AppTheme">
            <activity android:name=".MainActivity">
                <intent-filter>
                    <action android:name="android.intent.action.MAIN" />
                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
            <receiver android:name=".ServiceStarter" android:enabled="true" android:exported="false" android:permission="android.permission.RECEIVE_BOOT_COMPLETED"
                android:directBootAware="true" tools:targetApi="n">
                <intent-filter>
                    <action android:name="android.intent.action.BOOT_COMPLETED"/>
                    <category android:name="android.intent.category.DEFAULT" />
                </intent-filter>
            </receiver>
        </application>
    </manifest>

    class ServiceStarter: BroadcastReceiver() {
        @SuppressLint("CommitPrefEdits")
        override fun onReceive(context: Context?, intent: Intent?) {
            Log.d("EMY_","Calling onReceive")
             context?.let {
                 Log.i("EMY_", "Received action: ${intent!!.getAction()}, user unlocked: " + UserManagerCompat.isUserUnlocked(context))

                 val sp =it.getSharedPreferences("EMY_", Context.MODE_PRIVATE)
                 sp.edit().putString(MainActivity.MY_KEY, "M-am activat asa cum trebuie!")

                 if (intent!!.getAction().equals(Intent.ACTION_BOOT_COMPLETED)) {
                     val i = Intent(it, MainActivity::class.java)
                     i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
                     it.startActivity(i)
                 }
            }
        }
    }

class MainActivity : AppCompatActivity() {

    companion object {
        const val MY_KEY="MY_KEY"
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val kgm = getSystemService(Context.KEYGUARD_SERVICE) as KeyguardManager
        val kgl = kgm.newKeyguardLock(MainActivity::class.java.simpleName)
        if (kgm.inKeyguardRestrictedInputMode()) {
            kgl.disableKeyguard()
        }

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            requestPermissions(arrayOf(Manifest.permission.RECEIVE_BOOT_COMPLETED), 1234)
        }
        else
        {
            afisareRezultat()
        }
    }

    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {

        if(1234 == requestCode )
        {
            afisareRezultat()
        }

        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
    }

    private fun afisareRezultat() {
        Log.d("EMY_","Calling afisareRezultat")
        val sp = getSharedPreferences("EMY_", Context.MODE_PRIVATE);
        val raspuns = sp.getString(MY_KEY, "Doesn't exists")
        Log.d("EMY_", "AM primit: ${raspuns}")
        sp.edit().remove(MY_KEY).apply()
    }
}

Write this in your View Controller class of your Tab Bar:

// Generate a black tab bar
self.tabBarController.tabBar.barTintColor = [UIColor blackColor];

// Set the selected icons and text tint color
self.tabBarController.tabBar.tintColor = [UIColor orangeColor];

Similar question here.

With Entity Framework there is EntityFramework-Plus (extensions library).
Available on NuGet. Then you can write something like:

// DELETE all users which has been inactive for 2 years
ctx.Users.Where(x => x.LastLoginDate < DateTime.Now.AddYears(-2))
     .Delete();

It is also useful for bulk deletes.

PHP 7.2 Ubuntu 18.04

sudo apt install php-mbstring

If you use an appropriate class or library, they will do the escaping for you. Many XML issues are caused by string concatenation.

XML escape characters

There are only five:

"   "
'   '
<   &lt;
>   &gt;
&   &amp;

Escaping characters depends on where the special character is used.

The examples can be validated at the W3C Markup Validation Service.

Text

The safe way is to escape all five characters in text. However, the three characters ", ' and > needn't be escaped in text:

<?xml version="1.0"?>
<valid>"'></valid>

Attributes

The safe way is to escape all five characters in attributes. However, the > character needn't be escaped in attributes:

<?xml version="1.0"?>
<valid attribute=">"/>

The ' character needn't be escaped in attributes if the quotes are ":

<?xml version="1.0"?>
<valid attribute="'"/>

Likewise, the " needn't be escaped in attributes if the quotes are ':

<?xml version="1.0"?>
<valid attribute='"'/>

Comments

All five special characters must not be escaped in comments:

<?xml version="1.0"?>
<valid>
<!-- "'<>& -->
</valid>

CDATA

All five special characters must not be escaped in CDATA sections:

<?xml version="1.0"?>
<valid>
<![CDATA["'<>&]]>
</valid>

Processing instructions

All five special characters must not be escaped in XML processing instructions:

<?xml version="1.0"?>
<?process <"'&> ?>
<valid/>

XML vs. HTML

HTML has its own set of escape codes which cover a lot more characters.

Choosing to Project -> Clean should resolve this

If you're using Angularjs, you can use the angular-materialize plugin, which provides some handy directives. Then you don't need to initialize in the js, just add material-select to your select:

<div input-field>
    <select class="" ng-model="select.value1" material-select>
        <option ng-repeat="value in select.choices">{{value}}</option>
    </select>
</div>

1. Declare a notification name

   extension Notification.Name {
       static let purchaseDidFinish = Notification.Name("purchaseDidFinish")
   }
   

2. You can add observer in two ways:

   Using Selector

   NotificationCenter.default.addObserver(self, selector: #selector(myFunction), name: .purchaseDidFinish, object: nil)
   
   @objc func myFunction(notification: Notification) {
       print(notification.object ?? "") //myObject
       print(notification.userInfo ?? "") //[AnyHashable("key"): "Value"]
   }
   

   or using block

   NotificationCenter.default.addObserver(forName: .purchaseDidFinish, object: nil, queue: nil) { [weak self] (notification) in
       guard let strongSelf = self else {
           return
       }
   
       strongSelf.myFunction(notification: notification)
   }
   
   func myFunction(notification: Notification) {
       print(notification.object ?? "") //myObject
       print(notification.userInfo ?? "") //[AnyHashable("key"): "Value"]
   }
   

3. Post your notification

   NotificationCenter.default.post(name: .purchaseDidFinish, object: "myObject", userInfo: ["key": "Value"])
   

from iOS 9 and OS X 10.11. It is no longer necessary for an NSNotificationCenter observer to un-register itself when being deallocated. more info

For a block based implementation you need to do a weak-strong dance if you want to use self inside the block. more info

Block based observers need to be removed more info

let center = NSNotificationCenter.defaultCenter()
center.removeObserver(self.localeChangeObserver)

From MSDN:

Top-level types, which are not nested in other types, can only have internal or public accessibility. The default accessibility for these types is internal.

^{Source: Accessibility Levels (C# Reference) (December 6th, 2017)}

You want to write a function (a recursive function is easiest, but can easily run out of stack space on deep directories) that will enumerate the children of a directory. If you find a child that is a directory, you recurse on that. Otherwise, you delete the files inside. When you are done, the directory is empty and you can remove it via the syscall.

To enumerate directories on Unix, you can use opendir(), readdir(), and closedir(). To remove you use rmdir() on an empty directory (i.e. at the end of your function, after deleting the children) and unlink() on a file. Note that on many systems the d_type member in struct dirent is not supported; on these platforms, you will have to use stat() and S_ISDIR(stat.st_mode) to determine if a given path is a directory.

On Windows, you will use FindFirstFile()/FindNextFile() to enumerate, RemoveDirectory() on empty directories, and DeleteFile() to remove files.

Here's an example that might work on Unix (completely untested):

int remove_directory(const char *path) {
   DIR *d = opendir(path);
   size_t path_len = strlen(path);
   int r = -1;

   if (d) {
      struct dirent *p;

      r = 0;
      while (!r && (p=readdir(d))) {
          int r2 = -1;
          char *buf;
          size_t len;

          /* Skip the names "." and ".." as we don't want to recurse on them. */
          if (!strcmp(p->d_name, ".") || !strcmp(p->d_name, ".."))
             continue;

          len = path_len + strlen(p->d_name) + 2; 
          buf = malloc(len);

          if (buf) {
             struct stat statbuf;

             snprintf(buf, len, "%s/%s", path, p->d_name);
             if (!stat(buf, &statbuf)) {
                if (S_ISDIR(statbuf.st_mode))
                   r2 = remove_directory(buf);
                else
                   r2 = unlink(buf);
             }
             free(buf);
          }
          r = r2;
      }
      closedir(d);
   }

   if (!r)
      r = rmdir(path);

   return r;
}

To move and delete specific records by selecting using WHERE query,

BEGIN TRANSACTION;
Insert Into A SELECT * FROM B where URL="" AND email ="" AND Annual_Sales_Vol="" And OPENED_In="" AND emp_count=""  And contact_person= "" limit 0,2000;
delete from B where Id In (select Id from B where URL="" AND email ="" AND Annual_Sales_Vol="" And OPENED_In="" AND emp_count="" And contact_person= "" limit 0,2000);
commit;

Here is the easiest way I use, hope works for you,

var1 = var1 or 4

This assigns 4 to var1 only if var1 is None , False or 0

If you are using NumPy (as in ludaavic's answer), for large arrays you'll probably want to use NumPy's sum function rather than Python's builtin sum for a significant speedup -- e.g., a >1000x speedup for 10 million element arrays on my laptop:

>>> import numpy as np
>>> ten_million = 10 * 1000 * 1000
>>> x, y = (np.random.randn(ten_million) for _ in range(2))
>>> %timeit sum(x > y)  # time Python builtin sum function
1 loops, best of 3: 24.3 s per loop
>>> %timeit (x > y).sum()  # wow, that was really slow! time NumPy sum method
10 loops, best of 3: 18.7 ms per loop
>>> %timeit np.sum(x > y)  # time NumPy sum function
10 loops, best of 3: 18.8 ms per loop

(above uses IPython's %timeit "magic" for timing)

Never try to edit to @_ variable!!!! They must be not touched.. Or you get some unsuspected effect. For example...

my $size=1234;
sub sub1{
  $_[0]=500;
}
sub1 $size;

Before call sub1 $size contain 1234. But after 500(!!) So you Don't edit this value!!! You may pass two or more values and change them in subroutine and all of them will be changed! I've never seen this effect described. Programs I've seen also leave @_ array readonly. And only that you may safely pass variable don't changed internal subroutine You must always do that:

sub sub2{
  my @m=@_;
  ....
}

assign @_ to local subroutine procedure variables and next worked with them. Also in some deep recursive algorithms that returun array you may use this approach to reduce memory used for local vars. Only if return @_ array the same.

This is the best you can do without JavaScript:

[draggable=true] {_x000D_
  cursor: move;_x000D_
}_x000D_
_x000D_
.resizable {_x000D_
  overflow: scroll;_x000D_
  resize: both;_x000D_
  max-width: 300px;_x000D_
  max-height: 460px;_x000D_
  border: 1px solid black;_x000D_
  min-width: 50px;_x000D_
  min-height: 50px;_x000D_
  background-color: skyblue;_x000D_
}

<div draggable="true" class="resizable"></div>

Demo

• draggable attribute on HTML5 Rocks
• CSS resize property on MDN

For an assembly project (ProjectName -> Build Dependencies -> Build Customizations -> masm (selected)), setting Generate Preprocessed Source Listing to True caused the problem for me too, clearing the setting fixed it. VS2013 here.

Here's my Code to theme the alert dialog box:

<style name="alertDialog" parent="Theme.AppCompat.Dialog.Alert">
    <item name="android:background">@color/light_button_text_color</item>
    <item name="android:textColor">@android:color/black</item>
    <item name="android:textColorPrimary">@android:color/black</item>
    <item name="android:textColorSecondary">@android:color/black</item>
    <item name="android:titleTextColor" tools:targetApi="m">@android:color/black</item>
</style>

Place this code in styles.xml. In your java apply this theme as:

AlertDialog.Builder builder = new AlertDialog.Builder(this, R.style.alertDialog);

Output of the code

Correct syntax (you had a missing parentheses in the end):

if (isset($_POST['sms_code']) == TRUE ) {
                            ^

p.s. you dont need == TRUE part, because BOOLEAN (true/false) is returned already.

Since you're using asp.net code-behind, add an id to the element and runat=server.

You can then reference the objects in the code behind.

B.display() works because static declaration makes the method/member to belong to the class, and not any particular class instance (aka Object). You can read more about it here.

Another thing to note is that you cannot override a static method, you can have your sub class declare a static method with the same signature, but its behavior may be different than what you'd expect. This is probably the reason why it is not considered inherited. You can check out the problematic scenario and the explanation here.

If it's too late at night and your table is already innoDB and you still don't see the link, maybe is due to the fact that now it's placed above the structure of the table, like in the picture is shown

You don't need JavaScript for this! Here is a cross-browser solution:

See this example! - It works in Chrome/FF/IE - (IE10/9/8/7)

The best approach would be to have a custom label element with a for attribute attached to a hidden file input element. (The label's for attribute must match the file element's id in order for this to work).

<label for="file-upload" class="custom-file-upload">
    Custom Upload
</label>
<input id="file-upload" type="file"/>

As an alternative, you could also just wrap the file input element with a label directly: (example)

<label class="custom-file-upload">
    <input type="file"/>
    Custom Upload
</label>

In terms of styling, just hide¹ the input element using the attribute selector.

input[type="file"] {
    display: none;
}

Then all you need to do is style the custom label element. (example).

.custom-file-upload {
    border: 1px solid #ccc;
    display: inline-block;
    padding: 6px 12px;
    cursor: pointer;
}

¹ - It's worth noting that if you hide the element using display: none, it won't work in IE8 and below. Also be aware of the fact that jQuery validate doesn't validate hidden fields by default. If either of those things are an issue for you, here are two different methods to hide the input (1, 2) that work in these circumstances.

Try doing it the other way around.

$('<link rel="stylesheet" href="css/style2.css" type="text/css" />').appendTo('head');

If you normalize your data first, then you can avoid all the very complex regular expressions required to validate phone numbers. From my experience, complicated regex patterns can have two unwanted side effects: (1) they can have unexpected behavior that would be a pain to debug later, and (2) they can be slower than simpler regex patterns, which may become noticeable when you are executing regex in a loop.

By keeping your regular expressions as simple as possible, you reduce these risks and your code will be easier for others to follow, partly because it will be more predictable. To use your phone number example, first we can normalize the value by stripping out all non-digits like this:

value = $.trim(value).replace(/\D/g, '');

Now your regex pattern for a US phone number (or any other locale) can be much simpler:

/^1?\d{10}$/

Not only is the regular expression much simpler, it is also easier to follow what's going on: a value optionally leading with number one (US country code) followed by ten digits. If you want to format the validated value to make it look pretty, then you can use this slightly longer regex pattern:

/^1?(\d{3})(\d{3})(\d{4})$/

This means an optional leading number one followed by three digits, another three digits, and ending with four digits. With each group of numbers memorized, you can output it any way you want. Here's a codepen using jQuery Validation to illustrate this for two locales (Singapore and US):

http://codepen.io/thdoan/pen/MaMqvZ

var str = "This-is-a-news-item-";
while (str.contains("-")) {
  str = str.replace("-", ' ');
}
alert(str);

I found that one use of str.replace() would only replace the first hyphen, so I looped thru while the input string still contained any hyphens, and replaced them all.

http://jsfiddle.net/LGCYF/

You need to call self.a() to invoke a from b. a is not a global function, it is a method on the class.

You may want to read through the Python tutorial on classes some more to get the finer details down.

In order to move a View anywhere on the screen, I would recommend placing it in a full screen layout. By doing so, you won't have to worry about clippings or relative coordinates.

You can try this sample code:

main.xml

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

    <Button
        android:id="@+id/btn1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="MOVE" android:layout_centerHorizontal="true"/>

    <ImageView
        android:id="@+id/img1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" android:layout_marginLeft="10dip"/>
    <ImageView
        android:id="@+id/img2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" android:layout_centerVertical="true" android:layout_alignParentRight="true"/>
    <ImageView
        android:id="@+id/img3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" android:layout_marginLeft="60dip" android:layout_alignParentBottom="true" android:layout_marginBottom="100dip"/>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" android:clipChildren="false" android:clipToPadding="false">

        <ImageView
            android:id="@+id/img4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" android:layout_marginLeft="60dip" android:layout_marginTop="150dip"/>
    </LinearLayout>

</RelativeLayout>

Your activity

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    ((Button) findViewById( R.id.btn1 )).setOnClickListener( new OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            ImageView img = (ImageView) findViewById( R.id.img1 );              
            moveViewToScreenCenter( img );
            img = (ImageView) findViewById( R.id.img2 );
            moveViewToScreenCenter( img );
            img = (ImageView) findViewById( R.id.img3 );                
            moveViewToScreenCenter( img );
            img = (ImageView) findViewById( R.id.img4 );
            moveViewToScreenCenter( img );
        }
    });
}

private void moveViewToScreenCenter( View view )
{
    RelativeLayout root = (RelativeLayout) findViewById( R.id.rootLayout );
    DisplayMetrics dm = new DisplayMetrics();
    this.getWindowManager().getDefaultDisplay().getMetrics( dm );
    int statusBarOffset = dm.heightPixels - root.getMeasuredHeight();

    int originalPos[] = new int[2];
    view.getLocationOnScreen( originalPos );

    int xDest = dm.widthPixels/2;
    xDest -= (view.getMeasuredWidth()/2);
    int yDest = dm.heightPixels/2 - (view.getMeasuredHeight()/2) - statusBarOffset;

    TranslateAnimation anim = new TranslateAnimation( 0, xDest - originalPos[0] , 0, yDest - originalPos[1] );
    anim.setDuration(1000);
    anim.setFillAfter( true );
    view.startAnimation(anim);
}

The method moveViewToScreenCenter gets the View's absolute coordinates and calculates how much distance has to move from its current position to reach the center of the screen. The statusBarOffset variable measures the status bar height.

I hope you can keep going with this example. Remember that after the animation your view's position is still the initial one. If you tap the MOVE button again and again the same movement will repeat. If you want to change your view's position do it after the animation is finished.

Browser parses your html from top down, your script runs before body is loaded. To fix put script after body.

  <html>
  <head>
       <title> Javascript Tests </title> 
  </head>
 <body>
 </body>
  <script type="text/javascript">

    var mySpan = document.createElement("span");
    mySpan.innerHTML = "This is my span!";

    mySpan.style.color = "red";
    document.body.appendChild(mySpan);

    alert("Why does the span change after this alert? Not before?");

</script>
</html>

The Integer is immutable. You can wrap int in your custom wrapper class.

class WrapInt{
    int value;
}

WrapInt theInt = new WrapInt();

inc(theInt);
System.out.println("main: "+theInt.value);

cleanText = strInputCode.replace(/<\/?[^>]+(>|$)/g, "");

Distilled from this website (web.achive).

This regex looks for <, an optional slash /, one or more characters that are not >, then either > or $ (the end of the line)

Examples:

'<div>Hello</div>' ==> 'Hello'
 ^^^^^     ^^^^^^
'Unterminated Tag <b' ==> 'Unterminated Tag '
                  ^^

But it is not bulletproof:

'If you are < 13 you cannot register' ==> 'If you are '
            ^^^^^^^^^^^^^^^^^^^^^^^^
'<div data="score > 42">Hello</div>' ==> ' 42">Hello'
 ^^^^^^^^^^^^^^^^^^          ^^^^^^

If someone is trying to break your application, this regex will not protect you. It should only be used if you already know the format of your input. As other knowledgable and mostly sane people have pointed out, to safely strip tags, you must use a parser.

If you do not have acccess to a convenient parser like the DOM, and you cannot trust your input to be in the right format, you may be better off using a package like sanitize-html, and also other sanitizers are available.

you could also store your data in an service with an setter and get it over a getter

import { Injectable } from '@angular/core';

@Injectable()
export class StorageService {

    public scope: Array<any> | boolean = false;

    constructor() {
    }

    public getScope(): Array<any> | boolean {
        return this.scope;
    }

    public setScope(scope: any): void {
        this.scope = scope;
    }
}

I face the same issues recently, to solve this problem(simple and fast algorithm to compare two images) once and for all, I contribute an img_hash module to opencv_contrib, you can find the details from this link.

img_hash module provide six image hash algorithms, quite easy to use.

Codes example

origin lena

blur lena

resize lena

shift lena

#include <opencv2/core.hpp>
#include <opencv2/core/ocl.hpp>
#include <opencv2/highgui.hpp>
#include <opencv2/img_hash.hpp>
#include <opencv2/imgproc.hpp>

#include <iostream>

void compute(cv::Ptr<cv::img_hash::ImgHashBase> algo)
{
    auto input = cv::imread("lena.png");
    cv::Mat similar_img;

    //detect similiar image after blur attack
    cv::GaussianBlur(input, similar_img, {7,7}, 2, 2);
    cv::imwrite("lena_blur.png", similar_img);
    cv::Mat hash_input, hash_similar;
    algo->compute(input, hash_input);
    algo->compute(similar_img, hash_similar);
    std::cout<<"gaussian blur attack : "<<
               algo->compare(hash_input, hash_similar)<<std::endl;

    //detect similar image after shift attack
    similar_img.setTo(0);
    input(cv::Rect(0,10, input.cols,input.rows-10)).
            copyTo(similar_img(cv::Rect(0,0,input.cols,input.rows-10)));
    cv::imwrite("lena_shift.png", similar_img);
    algo->compute(similar_img, hash_similar);
    std::cout<<"shift attack : "<<
               algo->compare(hash_input, hash_similar)<<std::endl;

    //detect similar image after resize
    cv::resize(input, similar_img, {120, 40});
    cv::imwrite("lena_resize.png", similar_img);
    algo->compute(similar_img, hash_similar);
    std::cout<<"resize attack : "<<
               algo->compare(hash_input, hash_similar)<<std::endl;
}

int main()
{
    using namespace cv::img_hash;

    //disable opencl acceleration may(or may not) boost up speed of img_hash
    cv::ocl::setUseOpenCL(false);

    //if the value after compare <= 8, that means the images
    //very similar to each other
    compute(ColorMomentHash::create());

    //there are other algorithms you can try out
    //every algorithms have their pros and cons
    compute(AverageHash::create());
    compute(PHash::create());
    compute(MarrHildrethHash::create());
    compute(RadialVarianceHash::create());
    //BlockMeanHash support mode 0 and mode 1, they associate to
    //mode 1 and mode 2 of PHash library
    compute(BlockMeanHash::create(0));
    compute(BlockMeanHash::create(1));
}

In this case, ColorMomentHash give us best result

• gaussian blur attack : 0.567521
• shift attack : 0.229728
• resize attack : 0.229358

Pros and cons of each algorithm

The performance of img_hash is good too

Speed comparison with PHash library(100 images from ukbench)

If you want to know the recommend thresholds for these algorithms, please check this post(http://qtandopencv.blogspot.my/2016/06/introduction-to-image-hash-module-of.html). If you are interesting about how do I measure the performance of img_hash modules(include speed and different attacks), please check this link(http://qtandopencv.blogspot.my/2016/06/speed-up-image-hashing-of-opencvimghash.html).

You can also do like this-

 std::map<char, int>::iterator it = m.find('c'); 
 if (it != m.end())
 (*it).second = 42;

Your regex "sentence(.*)" is right. To retrieve the contents of the group in parenthesis, you would call:

Pattern p = Pattern.compile( "sentence(.*)" );
Matcher m = p.matcher( "some lame sentence that is awesome" );
if ( m.find() ) {
   String s = m.group(1); // " that is awesome"
}

Note the use of m.find() in this case (attempts to find anywhere on the string) and not m.matches() (would fail because of the prefix "some lame"; in this case the regex would need to be ".*sentence(.*)")

You can name your file "newpage.php" - put it in your theme directory in wp-content. You can make it a page template (see http://codex.wordpress.org/Pages...) or you can include it in one of the PHP files in your theme, such as header.php or single.php.

Even better, create a child theme and put it in there, so you leave your theme code alone, and it's easier to update.

http://codex.wordpress.org/Pages#Creating_Your_Own_Page_Templates

From the Jenkins home page:

1. Click Manage Jenkins.
2. Click Manage Plugins.
3. Click on the Installed tab.

Or

1. Go to the Jenkins URL directly: {Your Jenkins base URL}/pluginManager/installed

The top answer is excellent. Here is what I had to on a regular debian/php/mysql setup:

// storage
// debian. apparently already utf-8

// retrieval
// the mysql database was stored in utf-8, 
// but apparently php was requesting iso. this worked: 
// ***notice "utf8", without dash, this is a mysql encoding***
mysql_set_charset('utf8');

// delivery
// php.ini did not have a default charset, 
// (it was commented out, shared host) and
// no http encoding was specified in the apache headers.
// this made apache send out a utf-8 header
// (and perhaps made php actually send out utf-8)
// ***notice "utf-8", with dash, this is a php encoding***
ini_set('default_charset','utf-8');

// submission
// this worked in all major browsers once apache
// was sending out the utf-8 header. i didnt add
// the accept-charset attribute.

// processing
// changed a few commands in php, like substr,
// to mb_substr

that was all !

You don't really need it today, because the current standard makes it optional -- and every useful browser currently assumes that a style sheet is CSS, even in versions of HTML that considered the attribute "required".

With HTML being a "living standard" now, though -- and thus subject to change -- you can only guarantee so much. And there's no new DTD that you can point to and say the page was written for that version of HTML, and no reliable way even to say "HTML as of such-and-such a date". For forward-compatibility reasons, in my opinion, you should specify the type.

This has been answered for the most part, but I will expand...

Step 1

My goal was to enable zoom at certain times, and disable it at others.

// enable pinch zoom
var $viewport = $('head meta[name="viewport"]');    
$viewport.attr('content', 'width=device-width, initial-scale=1, maximum-scale=4');

// ...later...

// disable pinch zoom
$viewport.attr('content', 'width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no');

Step 2

The viewport tag would update, but pinch zoom was still active!! I had to find a way to get the page to pick up the changes...

It's a hack solution, but toggling the opacity of body did the trick. I'm sure there are other ways to accomplish this, but here's what worked for me.

// after updating viewport tag, force the page to pick up changes           
document.body.style.opacity = .9999;
setTimeout(function(){
    document.body.style.opacity = 1;
}, 1);

Step 3

My problem was mostly solved at this point, but not quite. I needed to know the current zoom level of the page so I could resize some elements to fit on the page (think of map markers).

// check zoom level during user interaction, or on animation frame
var currentZoom = $document.width() / window.innerWidth;

I hope this helps somebody. I spent several hours banging my mouse before finding a solution.

Use filter, or if the number of dictionaries in exampleSet is too high, use ifilter of the itertools module. It would return an iterator, instead of filling up your system's memory with the entire list at once:

from itertools import ifilter
for elem in ifilter(lambda x: x['type'] in keyValList, exampleSet):
    print elem

Nobody seems to touch upon the fact that if you have many different 32-bit applications, the wow64 subsystem can map them anywhere in memory above 4G, so on a 64-bit windows with sufficient memory, you can run many more 32-bit applications than on a native 32-bit system.

Without eval:

Your original string was not an actual string.

jsonObj = "{"TeamList" : [{"teamid" : "1","teamname" : "Barcelona"}]}"

The easiest way to to wrap it all with a single quote.

 jsonObj = '"{"TeamList" : [{"teamid" : "1","teamname" : "Barcelona"}]}"'

Then you can combine two steps to parse it to JSON:

 $.parseJSON(jsonObj.slice(1,-1))

public class Singleton {

    private static final Singleton INSTANCE = new Singleton();

    private Singleton() {
        if (INSTANCE != null)
            throw new IllegalStateException(“Already instantiated...”);
        }


    public synchronized static Singleton getInstance() {
        return INSTANCE;
    }

}

As we have added the Synchronized keyword before getInstance, we have avoided the race condition in the case when two threads call the getInstance at the same time.

We can easily add animated gif image on imageview using Ion library.

Tutorial video :: https://www.youtube.com/watch?v=IqKtpdeIpjA

ImageView image = (ImageView)findViewById(R.id.image_gif);
Ion.with(image).load("http://mygifimage.gif");

I agree with Darko Z on applying "overflow: hidden" to #sub-title. However, it should be mentioned that the overflow:hidden method of clearing floats does not work with IE6 unless you have a specified width or height. Or, if you don't want to specify a width or height, you can use "zoom: 1":

#sub-title { overflow:hidden; zoom: 1; }

Java 9 & Unified JVM Logging

JEP 158 introduces a common logging system for all components of the JVM which will change (and IMO simplify) how logging works with GC. JEP 158 added a new command-line option to control logging from all components of the JVM:

-Xlog

For example, the following option:

-Xlog:gc

will log messages tagged with gc tag using info level to stdout. Or this one:

-Xlog:gc=debug:file=gc.txt:none

would log messages tagged with gc tag using debug level to a file called gc.txt with no decorations. For more detailed discussion, you can checkout the examples in the JEP page.

What about wildcards or multiple files?

scp file1 file2 more-files* user@remote:/some/dir/

I'm guessing you've installed Code::Blocks but not installed or set up GCC yet. I'm assuming you're on Windows, based on your comments about Visual Studio; if you're on a different platform, the steps for setting up GCC should be similar but not identical.

First you'll need to download GCC. There are lots and lots of different builds; personally, I use the 64-bit build of TDM-GCC. The setup for this might be a bit more complex than you'd care for, so you can go for the 32-bit version or just grab a preconfigured Code::Blocks/TDM-GCC setup here.

Once your setup is done, go ahead and launch Code::Blocks. You don't need to create a project or write any code yet; we're just here to set stuff up or double-check your setup, depending on how you opted to install GCC.

Go into the Settings menu, then select Global compiler settings in the sidebar, and select the Toolchain executables tab. Make sure the Compiler's installation directory textbox matches the folder you installed GCC into. For me, this is C:\TDM-GCC-64. Your path will vary, and this is completely fine; just make sure the path in the textbox is the same as the path you installed to. Pay careful attention to the warning note Code::Blocks shows: this folder must have a bin subfolder which will contain all the relevant GCC executables. If you look into the folder the textbox shows and there isn't a bin subfolder there, you probably have the wrong installation folder specified.

Now, in that same Toolchain executables screen, go through the individual Program Files boxes one by one and verify that the filenames shown in each are correct. You'll want some variation of the following:

• C compiler: gcc.exe (mine shows x86_64-w64-mingw32-gcc.exe)
• C++ compiler: g++.exe (mine shows x86_64-w64-mingw32-g++.exe)
• Linker for dynamic libs: g++.exe (mine shows x86_64-w64-mingw32-g++.exe)
• Linker for static libs: gcc-ar.exe (mine shows x86_64-w64-mingw32-gcc-ar.exe)
• Debugger: GDB/CDB debugger: Default
• Resource compiler: windres.exe (mine shows windres.exe)
• Make program: make.exe (mine shows mingw32-make.exe)

Again, note that all of these files are in the bin subfolder of the folder shown in the Compiler installation folder box - if you can't find these files, you probably have the wrong folder specified. It's okay if the filenames aren't a perfect match, though; different GCC builds might have differently prefixed filenames, as you can see from my setup.

Once you're done with all that, go ahead and click OK. You can restart Code::Blocks if you'd like, just to confirm the changes will stick even if there's a crash (I've had occasional glitches where Code::Blocks will crash and forget any settings changed since the last launch).

Now, you should be all set. Go ahead and try your little section of code again. You'll want int main(void) to be int main(), but everything else looks good. Try building and running it and see what happens. It should run successfully.

Note: The question is about arrays of strings. The mentioned routines are not to be mixed with the .Contains method of single strings.

I would like to add an extending answer referring to different C# versions and because of two reasons:

• The accepted answer requires Linq which is perfectly idiomatic C# while it does not come without costs, and is not available in C# 2.0 or below. When an array is involved, performance may matter, so there are situations where you want to stay with Array methods.

• No answer directly attends to the question where it was asked also to put this in a function (As some answers are also mixing strings with arrays of strings, this is not completely unimportant).

Array.Exists() is a C#/.NET 2.0 method and needs no Linq. Searching in arrays is O(n). For even faster access use HashSet or similar collections.

Since .NET 3.5 there also exists a generic method Array<T>.Exists() :

public void PrinterSetup(string[] printer)
{
   if (Array.Exists(printer, x => x == "jupiter"))
   {
      Process.Start("BLAH BLAH CODE TO ADD PRINTER VIA WINDOWS EXEC");
   }
}

You could write an own extension method (C# 3.0 and above) to add the syntactic sugar to get the same/similar ".Contains" as for strings for all arrays without including Linq:

// Using the generic extension method below as requested.
public void PrinterSetup(string[] printer)
{
   if (printer.ArrayContains("jupiter"))
   {
      Process.Start("BLAH BLAH CODE TO ADD PRINTER VIA WINDOWS EXEC");
   }
}

public static bool ArrayContains<T>(this T[] thisArray, T searchElement)
{
   // If you want this to find "null" values, you could change the code here
   return Array.Exists<T>(thisArray, x => x.Equals(searchElement));
}

In this case this ArrayContains() method is used and not the Contains method of Linq.

The elsewhere mentioned .Contains methods refer to List<T>.Contains (since C# 2.0) or ArrayList.Contains (since C# 1.1), but not to arrays itself directly.

I think all you need to do for your function is just add PtrSafe: i.e. the first line of your first function should look like this:

Private Declare PtrSafe Function swe_azalt Lib "swedll32.dll" ......

SELECT   (MONTHS_BETWEEN(date2,date1) +  (datediff(day,date2,date1))/30) as num_months,
datediff(day,date2,date1) as diff_in_days  FROM  dual;

// You should replace date2 with TO_DATE('2012/03/25', 'YYYY/MM/DD')
// You should replace date1 with TO_DATE('2012/01/01', 'YYYY/MM/DD')
// To get you results

From Stack Overflow question What is the Python 3 equivalent of "python -m SimpleHTTPServer":

The following works for me:

python -m http.server [<portNo>]

Because I am using Python 3 the module SimpleHTTPServer has been replaced by http.server, at least in Windows.

I have updated the jsperf fiddle with two alternative methods as well as error checking.

It turns out that the method defining a constant value in the 'Object' and 'Array' prototypes is faster than any of the other methods. It is a somewhat surprising result.

/* Initialisation */_x000D_
Object.prototype.isArray = function() {_x000D_
  return false;_x000D_
};_x000D_
Array.prototype.isArray = function() {_x000D_
  return true;_x000D_
};_x000D_
Object.prototype._isArray = false;_x000D_
Array.prototype._isArray = true;_x000D_
_x000D_
var arr = ["1", "2"];_x000D_
var noarr = "1";_x000D_
_x000D_
/* Method 1 (function) */_x000D_
if (arr.isArray()) document.write("arr is an array according to function<br/>");_x000D_
if (!noarr.isArray()) document.write("noarr is not an array according to function<br/>");_x000D_
/* Method 2 (value) - **** FASTEST ***** */_x000D_
if (arr._isArray) document.write("arr is an array according to member value<br/>");_x000D_
if (!noarr._isArray) document.write("noarr is not an array according to member value<br/>");

These two methods do not work if the variable takes the undefined value, but they do work if you are certain that they have a value. With regards to checking with performance in mind if a value is an array or a single value, the second method looks like a valid fast method. It is slightly faster than 'instanceof' on Chrome, twice as fast as the second best method in Internet Explorer, Opera and Safari (on my machine).

I found this link while looking for something slightly different, how to start appending array objects to an empty numpy array, but tried all the solutions on this page to no avail.

Then I found this question and answer: How to add a new row to an empty numpy array

The gist here:

The way to "start" the array that you want is:

arr = np.empty((0,3), int)

Then you can use concatenate to add rows like so:

arr = np.concatenate( ( arr, [[x, y, z]] ) , axis=0)

See also https://docs.scipy.org/doc/numpy/reference/generated/numpy.concatenate.html

If you don't want any changes in design and definitely want it to just match a remote's branch, you can also just delete the branch and recreate it:

# Switch to some branch other than design
$ git br -D design
$ git co -b design origin/design            # Will set up design to track origin's design branch

None of the solutions helped:

The problem is that Eclipse 2018-12 has support for JUnit 5.3.1. If you start it with a version before that, it will fail.

So make sure you use at least 5.3.1.

5.4.0 does work too.

In case your parent pom is Spring Boot, you need to make sure (in dependency management) that junit-jupiter-api is set to the same version. You don't need junit-platform-runner or -launcher!

FileZila is good FTP tool to setup with Amazon Cloud.

1. Download FileZila client from https://filezilla-project.org/
2. Click on File -> Site Manager - >
3. New Site
4. Provide Host Name IP address of your amazon cloud location (Port if any)
5. Protocol - SFTP (May change based on your requirement)
6. Login Type - Normal (So system will not ask for password each time)
7. Provide user name and password.
8. Connect.

You need to do these step only 1 time, later it will upload content to the same IP address and same site.

it is a ternary operator and in simple english it states "if row%2 is equal to 1 then return < else return /r"

I have just ran into the same problem after updating. The JRE that is downloaded by OSX Lion is missing JavaRuntimeSupport.jar which will work but can wreck havoc on a lot of things. If you've updated, and you had a working JDK/JRE installed prior to that, do the following in Eclipse:

1) Project > Properties > Java Build Path > Select broken JRE/JDK > Edit

2) Select "Alternate JRE"

3) Click "Installed JREs..."

4) In the window that opens, click "Search..."

If all goes well, it will find your older JRE/JDK. Mine was in this location:

/System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home

Any one can try this command to truncate any file in linux system

This will surely work in any format :

truncate -s 0 file.txt

All fields in JavaScript (and in TypeScript) can have the value null or undefined.

You can make the field optional which is different from nullable.

interface Employee1 {
    name: string;
    salary: number;
}

var a: Employee1 = { name: 'Bob', salary: 40000 }; // OK
var b: Employee1 = { name: 'Bob' }; // Not OK, you must have 'salary'
var c: Employee1 = { name: 'Bob', salary: undefined }; // OK
var d: Employee1 = { name: null, salary: undefined }; // OK

// OK
class SomeEmployeeA implements Employee1 {
    public name = 'Bob';
    public salary = 40000;
}

// Not OK: Must have 'salary'
class SomeEmployeeB implements Employee1 {
    public name: string;
}

Compare with:

interface Employee2 {
    name: string;
    salary?: number;
}

var a: Employee2 = { name: 'Bob', salary: 40000 }; // OK
var b: Employee2 = { name: 'Bob' }; // OK
var c: Employee2 = { name: 'Bob', salary: undefined }; // OK
var d: Employee2 = { name: null, salary: 'bob' }; // Not OK, salary must be a number

// OK, but doesn't make too much sense
class SomeEmployeeA implements Employee2 {
    public name = 'Bob';
}

I had come across this problem many times. There is cl.exe but for some strange reason pip couldn't find it, even if we run the command from the bin folder where cl.exe is present. Try using conda installer, it worked fine for me.

As you can see in the following image, pip is not able to find the cl.exe. Then I tried installing using conda

And to my surprise it gets installed without an error once you have the right version of vs cpp build tools installed, i.e. v14.0 in the right directory.

If anyone is coming here looking to do this with Font Awesome Icons (like I was) view here: https://fontawesome.com/how-to-use/on-the-web/styling/icons-in-a-list

<ul class="fa-ul">
  <li><i class="fa-li fa fa-check-square"></i>List icons</li>
  <li><i class="fa-li fa fa-check-square"></i>can be used</li>
  <li><i class="fa-li fa fa-spinner fa-spin"></i>as bullets</li>
  <li><i class="fa-li fa fa-square"></i>in lists</li>
</ul>

The fa-ul and fa-li classes easily replace default bullets in unordered lists.

add to Manifest for your activity android:launchMode="singleTask"

Position Independent Code means that the generated machine code is not dependent on being located at a specific address in order to work.

E.g. jumps would be generated as relative rather than absolute.

Pseudo-assembly:

PIC: This would work whether the code was at address 100 or 1000

100: COMPARE REG1, REG2
101: JUMP_IF_EQUAL CURRENT+10
...
111: NOP

Non-PIC: This will only work if the code is at address 100

100: COMPARE REG1, REG2
101: JUMP_IF_EQUAL 111
...
111: NOP

EDIT: In response to comment.

If your code is compiled with -fPIC, it's suitable for inclusion in a library - the library must be able to be relocated from its preferred location in memory to another address, there could be another already loaded library at the address your library prefers.

SELECT * FROM Accounts WHERE Username LIKE '%$query%'

but it's not suggested. use PDO

Another simple way (Bootstrap 4) to work with multiple dropdowns

    $('.dropdown-item').on('click',  function(){
        var btnObj = $(this).parent().siblings('button');
        $(btnObj).text($(this).text());
        $(btnObj).val($(this).text());
    });

HashMap is an array of Entry objects.

Consider HashMap as just an array of objects.

Have a look at what this Object is:

static class Entry<K,V> implements Map.Entry<K,V> {
        final K key;
        V value;
        Entry<K,V> next;
        final int hash;
… 
}

Each Entry object represents a key-value pair. The field next refers to another Entry object if a bucket has more than one Entry.

Sometimes it might happen that hash codes for 2 different objects are the same. In this case, two objects will be saved in one bucket and will be presented as a linked list. The entry point is the more recently added object. This object refers to another object with the next field and so on. The last entry refers to null.

When you create a HashMap with the default constructor

HashMap hashMap = new HashMap();

The array is created with size 16 and default 0.75 load balance.

Adding a new key-value pair

1. Calculate hashcode for the key
2. Calculate position hash % (arrayLength-1) where element should be placed (bucket number)
3. If you try to add a value with a key which has already been saved in HashMap, then value gets overwritten.
4. Otherwise element is added to the bucket.

If the bucket already has at least one element, a new one gets added and placed in the first position of the bucket. Its next field refers to the old element.

Deletion

1. Calculate hashcode for the given key
2. Calculate bucket number hash % (arrayLength-1)
3. Get a reference to the first Entry object in the bucket and by means of equals method iterate over all entries in the given bucket. Eventually we will find the correct Entry. If a desired element is not found, return null

Prepare an array (in my case it is 2d array):

        // prepare a 2d array in c#
        ArrayList header = new ArrayList { "Task Name", "Hours"};
        ArrayList data1 = new ArrayList {"Work", 2};
        ArrayList data2 = new ArrayList { "Eat", 2 };
        ArrayList data3 = new ArrayList { "Sleep", 2 };
        ArrayList data = new ArrayList {header, data1, data2, data3};
        // convert it in json
        string dataStr = JsonConvert.SerializeObject(data, Formatting.None);
        // store it in viewdata/ viewbag
        ViewBag.Data = new HtmlString(dataStr);   

Parse it in the view.

<script>    
    var data = JSON.parse('@ViewBag.Data');
    console.log(data);
</script>

In your case you can directly use variable name instead of ViewBag.Data.

may be problem in data binding in export excel . check that data properly bin to a gridview or not.

Use this code for export grid view in excel sheet and note that you must add iTextSharp dll in you project.

protected void btnExportExcel_Click(object sender, EventArgs e)
    {
        Response.Clear();
        Response.Buffer = true;
        Response.AddHeader("content-disposition", "attachment;filename=GridViewExport.xls");
        Response.Charset = "";
        Response.ContentType = "application/vnd.ms-excel";

        StringWriter sw = new StringWriter();
        HtmlTextWriter hw = new HtmlTextWriter(sw);
        GridView1.AllowPaging = false;

        // Re-Bind data to GridView 

        using (CompMSEntities1 CompObj = new CompMSEntities1())
        {
            Start = Convert.ToDateTime(txtStart.Text);
            End = Convert.ToDateTime(txtEnd.Text);

            GridViewSummaryReportCategory.DataSource = CompObj.SP_Category_Summary(Start, End);
            SP_Category_Summary_Result obj1 = new SP_Category_Summary_Result();
            GridView1.DataBind();
           GridView1.Visible = true;
            ExportTable.Visible = true;
        }

        //Change the Header Row back to white color

        GridView1.HeaderRow.Style.Add("background-color", "#FFFFFF");


       GridView1.Style.Add(" font-size", "10px");




        //Apply style to Individual Cells

        GridView1.HeaderRow.Cells[0].Style.Add("background-color", "green");
        GGridView1.HeaderRow.Cells[1].Style.Add("background-color", "green");
        GridView1.HeaderRow.Cells[2].Style.Add("background-color", "green");
        GridView1.HeaderRow.Cells[3].Style.Add("background-color", "green");
        GridView1.HeaderRow.Cells[4].Style.Add("background-color", "green");

        for (int i = 1; i < GridView1.Rows.Count; i++)
        {
            GridViewRow row = GridView1.Rows[i];

            //Change Color back to white

            row.BackColor = System.Drawing.Color.White;

            //Apply text style to each Row

        //    row.Attributes.Add("class", "textmode");

            //Apply style to Individual Cells of Alternating Row

            if (i % 2 != 0)
            {
                row.Cells[0].Style.Add("background-color", "#C2D69B");
                row.Cells[1].Style.Add("background-color", "#C2D69B");
                row.Cells[2].Style.Add("background-color", "#C2D69B");
                row.Cells[3].Style.Add("background-color", "#C2D69B");
                row.Cells[4].Style.Add("background-color", "#C2D69B");
            }
        }
        GridView1.RenderControl(hw);

        //style to format numbers to string

        string style = @"<style> .textmode { mso-number-format:\@; } </style>";

        Response.Write(style);
        Response.Output.Write(sw.ToString());
        Response.Flush();
        Response.End();
    }

On Ubuntu 18.04, I ran into this issue because the apt package for wheel does not include the wheel command. I think pip tries to import the wheel python package, and if that succeeds assumes that the wheel command is also available. Ubuntu breaks that assumption.

The apt python3 code package is named python3-wheel. This is installed automatically because python3-pip recommends it.

The apt python3 wheel command package is named python-wheel-common. Installing this too fixes the "failed building wheel" errors for me.

I'll probably get flamed for this, but what is the point of testing for existence if you are just going to delete it? One of my major pet peeves is an app throwing an error dialog with something like "Could not delete file, it does not exist!"

On Error Resume Next
aFile = "c:\file_to_delete.txt"
Kill aFile
On Error Goto 0
return Len(Dir$(aFile)) > 0 ' Make sure it actually got deleted.

If the file doesn't exist in the first place, mission accomplished!

Focus on one specific thing. Disk I/O is slow, so I'd take that out of the test if all you are going to tweak is the database query.

And if you need to time your database execution, look for database tools instead, like asking for the query plan, and note that performance varies not only with the exact query and what indexes you have, but also with the data load (how much data you have stored).

That said, you can simply put your code in a function and run that function with timeit.timeit():

def function_to_repeat():
    # ...

duration = timeit.timeit(function_to_repeat, number=1000)

This would disable the garbage collection, repeatedly call the function_to_repeat() function, and time the total duration of those calls using timeit.default_timer(), which is the most accurate available clock for your specific platform.

You should move setup code out of the repeated function; for example, you should connect to the database first, then time only the queries. Use the setup argument to either import or create those dependencies, and pass them into your function:

def function_to_repeat(var1, var2):
    # ...

duration = timeit.timeit(
    'function_to_repeat(var1, var2)',
    'from __main__ import function_to_repeat, var1, var2', 
    number=1000)

would grab the globals function_to_repeat, var1 and var2 from your script and pass those to the function each repetition.

Simply now in 2014 the input element having an id supports the function val('').

For the input -

<input type="file" multiple="true" id="File1" name="choose-file" />

This js clears the input element -

$("#File1").val('');

You could use the Laravel query builder, but this is not the best way to do it.

Check Wader's answer below for the Eloquent way - which is better as it allows you to check that there is actually a user that matches the email address, and handle the error if there isn't.

DB::table('users')
        ->where('email', $userEmail)  // find your user by their email
        ->limit(1)  // optional - to ensure only one record is updated.
        ->update(array('member_type' => $plan));  // update the record in the DB. 

If you have multiple fields to update you can simply add more values to that array at the end.

http://en.csharp-online.net/CSharp_FAQ:_What_are_the_differences_between_CSharp_and_Java_constant_declarations

C# constants are declared using the const keyword for compile time constants or the readonly keyword for runtime constants. The semantics of constants is the same in both the C# and Java languages.

I didn't like the alias solution for my purposes. For one, it didn't work for setting export EDITOR="emacs -nw".

But you can pass --without-x to configure and then just the regular old Emacs will always open in terminal.

curl http://gnu.mirrors.hoobly.com/emacs/emacs-25.3.tar.xz
tar -xvzf emacs-25.3.tar.xz && cd emacs-25.3
./configure --without-x
make && sudo make install

It could be used as a wrapper function for returning a reference to a private constant data type. For example in a linked list you have the constants tail and head, and if you want to determine if a node is a tail or head node, then you can compare it with the value returned by that function.

Though any optimizer would most likely optimize it out anyway...

This question was asked a long time ago so I thought I'd post an updated answer.

You should now avoid using @import. Taken from the docs:

Sass will gradually phase it out over the next few years, and eventually remove it from the language entirely. Prefer the @use rule instead.

A full list of reasons can be found here

You should now use @use as shown below:

_variables.scss

$text-colour: #262626;

_otherFile.scss

@use 'variables'; // Path to _variables.scss Notice how we don't include the underscore or file extension

body {
  // namespace.$variable-name
  // namespace is just the last component of its URL without a file extension
  color: variables.$text-colour;
}

You can also create an alias for the namespace:

_otherFile.scss

@use 'variables' as v;

body {
  // alias.$variable-name
  color: v.$text-colour;
}

EDIT As pointed out by @und3rdg at the time of writing (November 2020) @use is currently only available for Dart Sass and not LibSass (now deprecated) or Ruby Sass. See https://sass-lang.com/documentation/at-rules/use for the latest compatibility

mongoDB -repair is not recommended in case of sharded cluster.

If using replica set sharded cluster, use compact command, it will rewrites and defragments all data and index files of all collections. syntax:

db.runCommand( { compact : "collection_name" } )

when used with force:true, compact runs on primary of replica set. e.g. db.runCommand ( { command : "collection_name", force : true } )

Other points to consider: -It blocks the operations. so recommended to execute in maintenance window. -If replica sets running on different servers, needs to be execute on each member separately - In case of sharded cluster, compact needs to execute on each shard member separately. Cannot execute against mongos instance.

In most software that generates RSA private keys, including openssl's, the private key is represented as a PKCS#1 RSAPrivatekey object or some variant thereof:

A.1.2 RSA private key syntax

An RSA private key should be represented with the ASN.1 type
RSAPrivateKey:

  RSAPrivateKey ::= SEQUENCE {
      version           Version,
      modulus           INTEGER,  -- n
      publicExponent    INTEGER,  -- e
      privateExponent   INTEGER,  -- d
      prime1            INTEGER,  -- p
      prime2            INTEGER,  -- q
      exponent1         INTEGER,  -- d mod (p-1)
      exponent2         INTEGER,  -- d mod (q-1)
      coefficient       INTEGER,  -- (inverse of q) mod p
      otherPrimeInfos   OtherPrimeInfos OPTIONAL
  }

As you can see, this format has a number of fields including the modulus and public exponent and thus is a strict superset of the information in an RSA public key.

In Linux, I normally use this command to recursively grep for a particular text within a dir

grep -rni "string" *

where,

r = recursive i.e, search subdirectories within the current directory
n = to print the line numbers to stdout
i = case insensitive search

In general, if you want to use the ConcurrentHashMap make sure you are ready to miss 'updates'
(i.e. printing contents of the HashMap does not ensure it will print the up-to-date Map) and use APIs like CyclicBarrier to ensure consistency across your program's lifecycle.

if you just need it for db-related stuff, some OR Mappers (e.g. NHibernate) support transactinos out of the box per default.

SELECT * FROM (SELECT colA, colB FROM tableA UNION SELECT colA, colB FROM tableB) as tableC WHERE tableC.colA > 1

If we're using a union that contains the same field name in 2 tables, then we need to give a name to the sub query as tableC(in above query). Finally, the WHERE condition should be WHERE tableC.colA > 1

You could create a hashtable. The keys can be the string and the value can be and integer. Setup your integers for the values as constants and then you can check for them with the switch.

This Might be help some:

To import module as library in your project.

1. File > New > Import Module
2. Select Valid path in Source Dir..
3. Tick on Import > Finish

Now Open Module setting:

1. Go to File > Project Structure > Modules
2. Modules > Dependency > click on Green Plus Sign.
3. Click on Module Dependency > locate module > and Implement your module.

if your module is not shown in "Choose Modules Window"

Follow the below step..

1. Open Settings.Gradle file
2. include ':app', 'Put your module name here' and sync project.

Follow Open Module Setting as above.

Some smart answers on here (Tomasz Wisniewski, cuongle). They seem to fall into two categories, either you need a wrapper/plug-in library or the eventual writing of the data needs to loop writing cell by cell, line by line. With the latter, performance will be slow, and perhaps the first is not so convenient for what should be such a simple task as exporting a DataTable to Excel. Here's how I do it, utilising a copy/paste which is much faster (3 milliseconds for 800 rows when I tested), but we have to cheat slightly. What you have to do is create a hidden Form with a DataGridView inside on the fly. Then when you dump your DataTable in their as the DataSource, you can call the "GetClipboardContent" method of the DataGridView class, and finally simply place it in a selected Range/Cell on the Excel sheet. Example code:

private bool FncCopyDataTableToWorksheet(DataTable dt, ExcelUsing.Worksheet destWsh)
    {
        Form frm = new Form();
        frm.Size = new Size(0, 0);             
        DataGridView dgv = new DataGridView();
        DataObject obj;
        ExcelUsing.Range rng;
        int j = 0;

        frm.Controls.Add(dgv);

        bool result = false;

        try
        {
            dgv.DataSource = dt;
            dgv.RowHeadersVisible = false;
            frm.Show();
            dgv.SelectAll();
            obj = dgv.GetClipboardContent();
            frm.Hide();
            dgv.ClearSelection();

            if (obj != null)
            {
                Clipboard.SetDataObject(obj);

                //Write Headers
                foreach (DataGridViewColumn dgvc in dgv.Columns)
                {
                    if (dgvc.Visible == true)
                    {
                        rng = (ExcelUsing.Range)destWsh.Cells[1, 1 + j];
                        rng.Value2 = dgvc.Name.ToString();
                        j++;
                    }
                }

                rng = (ExcelUsing.Range)destWsh.Cells[2, 1];
                rng.Select();
                destWsh.PasteSpecial(rng, _Missing, _Missing, _Missing, _Missing, _Missing, true);

                result = true;

            }
            else { result = false; }
        }
        catch (Exception ex)
        {
            //Handle
        }

        rng = null;
        obj = null;
        dgv = null;
        frm = null;

        return result;
    }

#1. Using Array subscript with range

With Swift 5, when you write…

let newNumbers = numbers[0...position]

… newNumbers is not of type Array<Int> but is of type ArraySlice<Int>. That's because Array's subscript(_:?) returns an ArraySlice<Element> that, according to Apple, presents a view onto the storage of some larger array.

Besides, Swift also provides Array an initializer called init(_:?) that allows us to create a new array from a sequence (including ArraySlice).

Therefore, you can use subscript(_:?) with init(_:?) in order to get a new array from the first n elements of an array:

let array = Array(10...14) // [10, 11, 12, 13, 14]
let arraySlice = array[0..<3] // using Range
//let arraySlice = array[0...2] // using ClosedRange also works
//let arraySlice = array[..<3] // using PartialRangeUpTo also works
//let arraySlice = array[...2] // using PartialRangeThrough also works
let newArray = Array(arraySlice)
print(newArray) // prints [10, 11, 12]

#2. Using Array's prefix(_:) method

Swift provides a prefix(_:) method for types that conform to Collection protocol (including Array). prefix(_:) has the following declaration:

func prefix(_ maxLength: Int) -> ArraySlice<Element>

Returns a subsequence, up to maxLength in length, containing the initial elements.

Apple also states:

If the maximum length exceeds the number of elements in the collection, the result contains all the elements in the collection.

Therefore, as an alternative to the previous example, you can use the following code in order to create a new array from the first elements of another array:

let array = Array(10...14) // [10, 11, 12, 13, 14]
let arraySlice = array.prefix(3)
let newArray = Array(arraySlice)
print(newArray) // prints [10, 11, 12]