Programs & Examples On #Ampersand

If you need to echo a string that contains an ampersand, quotes won't help, because you would see them on the output as well. In such a case, use for:

for %a in ("First & Last") do echo %~a

...in a batch script:

for %%a in ("First & Last") do echo %%~a

or

for %%a in ("%~1") do echo %%~a

Good question. Similar to the observation you have about examples 1 and 4 (or should I say 1 & 4 :) ) over logical and bitwise & operators, I experienced on sum operator. The numpy sum and py sum behave differently as well. For example:

Suppose "mat" is a numpy 5x5 2d array such as:

array([[ 1,  2,  3,  4,  5],
       [ 6,  7,  8,  9, 10],
       [11, 12, 13, 14, 15],
       [16, 17, 18, 19, 20],
       [21, 22, 23, 24, 25]])

Then numpy.sum(mat) gives total sum of the entire matrix. Whereas the built-in sum from Python such as sum(mat) totals along the axis only. See below:

np.sum(mat)  ## --> gives 325
sum(mat)     ## --> gives array([55, 60, 65, 70, 75])

When your XML contains &, this will result in the text &.

When you use that in HTML, that will be rendered as &.

Try HKEY_LOCAL_MACHINE\SYSTEM\Setup\SystemPartition

This is actually trickier than it looks, because you can't call strlen unless the string is actually nul terminated. In fact, without some additional constraints, the problem practically requires inventing a new function, a version of strlen which never goes beyond the a certain length. However:

If the buffer containing the c-style string is guaranteed to be at least max_length char's (although perhaps with a '\0' before the end), then you can use the address-length constructor of std::string, and trim afterwards:

std::string result( c_string, max_length );
result.erase( std::find( result.begin(), result.end(), '\0' ), result.end() );

and if you know that c_string is a nul terminated string (but perhaps longer than max_length, you can use strlen:

std::string result( c_string, std::min( strlen( c_string ), max_length ) );

SIMPLE

It's a prefix to indicate the number is in hexadecimal rather than in some other base. The C programming language uses it to tell compiler.

Example :

0x6400 translates to 6*16^3 + 4*16^2 + 0*16^1 +0*16^0 = 25600. When compiler reads 0x6400, It understands the number is hexadecimal with the help of 0x term. Usually we can understand by (6400)16 or (6400)8 or any base ..

Hope Helped in some way.

Good day,

Showing it graphically.

Centering on parent is done by constraining both sides to the parent. You can the constrain additional objects off of the centered object.

Note. Each arrow represents a "app:layout_constraintXXX_toYYY=" attribute. (6 in the picture)

if you want to change only the colour of the flag on hover use this:

http://jsfiddle.net/uvamhedx/

.fa-flag:hover {_x000D_
    color: red;_x000D_
}

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"/>_x000D_
_x000D_
<i class="fa fa-flag fa-3x"></i>

The correct answer (as of Dec 2018) is... you can't. Upgrading conda install python=3.6 may work, but it might not if you have packages that are necessary, but cannot be uninstalled.

Anaconda uses a default environment named base and you cannot create a new (e.g. python 3.6) environment with the same name. This is intentional. If you want your base Anaconda to be python 3.6, the right way to do this is to install Anaconda for python 3.6. As a package manager, the goal of Anaconda is to make different environments encapsulated, hence why you must source activate into them and why you can't just quietly switch the base package at will as this could lead to many issues on production systems.

The easiest way that I found to fix this is to uninstall everything then install a specific version of tensorflow-gpu:

1. uninstall tensorflow:

    pip uninstall tensorflow

2. uninstall tensorflow-gpu: (make sure to run this even if you are not sure if you installed it)

    pip uninstall tensorflow-gpu

3. Install specific tensorflow-gpu version:

    pip install tensorflow-gpu==2.0.0
    pip install tensorflow_hub
    pip install tensorflow_datasets

You can check if this worked by adding the following code into a python file:

from __future__ import absolute_import, division, print_function, unicode_literals

import numpy as np

import tensorflow as tf
import tensorflow_hub as hub
import tensorflow_datasets as tfds

print("Version: ", tf.__version__)
print("Eager mode: ", tf.executing_eagerly())
print("Hub Version: ", hub.__version__)
print("GPU is", "available" if tf.config.experimental.list_physical_devices("GPU") else "NOT AVAILABLE")

Run the file and then the output should be something like this:

Version:  2.0.0
Eager mode:  True
Hub Version:  0.7.0
GPU is available

Hope this helps

In

from math import sqrt

Using sqrt(4) works perfectly well. You need to only use math.sqrt(4) when you just use "import math".

The straight answer was already given: Use !!.

However newbies often tend to overuse this operator, which is expensive in Haskell (because you work on single linked lists, not on arrays). There are several useful techniques to avoid this, the easiest one is using zip. If you write zip ["foo","bar","baz"] [0..], you get a new list with the indices "attached" to each element in a pair: [("foo",0),("bar",1),("baz",2)], which is often exactly what you need.

OuterClass.this references the outer class.

require(name)

It will return bolean true/false

The name which is passed as parameter to the require, ruby will try to find the source file with that name in your load path. The require method will return ‘false’ if you try to load the same library after the first time. The require method only needs to be used if library you are loading is defined in a separate file. So it keeps track of whether that library was already loaded or not.

include module_name

Suppose if you have some methods that you need to have in two different classes. Then you don't have to write them in both the classes. Instead what you can do is, define it in module. And then include this module in other classes. It is provided by Ruby just to ensure DRY principle. It’s used to DRY up your code to avoid duplication

Before actually answering your question:

Parameters in a URL (e.g. key=listOfUsers/user1) are GET parameters and you shouldn't be using them for POST requests. A quick explanation of the difference between GET and POST can be found here.

In your case, to make use of REST principles, you should probably have:

http://ip:5000/users
http://ip:5000/users/<user_id>

Then, on each URL, you can define the behaviour of different HTTP methods (GET, POST, PUT, DELETE). For example, on /users/<user_id>, you want the following:

GET /users/<user_id> - return the information for <user_id>
POST /users/<user_id> - modify/update the information for <user_id> by providing the data
PUT - I will omit this for now as it is similar enough to `POST` at this level of depth
DELETE /users/<user_id> - delete user with ID <user_id> 

So, in your example, you want do a POST to /users/user_1 with the POST data being "John". Then the XPath expression or whatever other way you want to access your data should be hidden from the user and not tightly couple to the URL. This way, if you decide to change the way you store and access data, instead of all your URL's changing, you will simply have to change the code on the server-side.

Now, the answer to your question: Below is a basic semi-pseudocode of how you can achieve what I mentioned above:

from flask import Flask
from flask import request

app = Flask(__name__)

@app.route('/users/<user_id>', methods = ['GET', 'POST', 'DELETE'])
def user(user_id):
    if request.method == 'GET':
        """return the information for <user_id>"""
        .
        .
        .
    if request.method == 'POST':
        """modify/update the information for <user_id>"""
        # you can use <user_id>, which is a str but could
        # changed to be int or whatever you want, along
        # with your lxml knowledge to make the required
        # changes
        data = request.form # a multidict containing POST data
        .
        .
        .
    if request.method == 'DELETE':
        """delete user with ID <user_id>"""
        .
        .
        .
    else:
        # POST Error 405 Method Not Allowed
        .
        .
        .

There are a lot of other things to consider like the POST request content-type but I think what I've said so far should be a reasonable starting point. I know I haven't directly answered the exact question you were asking but I hope this helps you. I will make some edits/additions later as well.

Thanks and I hope this is helpful. Please do let me know if I have gotten something wrong.

declare a double value and convert to long convert to string and formated to float the double value finally replace all the value like 123456789,0000 to 123456789

Double value = double value ;
Long longValue = value.longValue();  String strCellValue1 = new String(longValue.toString().format("%f",value).replaceAll("\\,?0*$", ""));

I scanned the above answers and the proposed keydown/keyup approach works only under special circumstances. If the user alt-tabs away, or uses a key gesture to open a new browser window or tab, then a keydown will be registered, which is fine, because at that point it's impossible to tell if the key is something the web app is monitoring, or is a standard browser or OS shortcut. Coming back to the browser page, it'll still think the key is held, though it was released in the meantime. Or some key is simply kept held, while the user is switching to another tab or application with the mouse, then released outside our page.

Modifier keys (Shift etc.) can be monitored via mousemove etc. assuming that there is at least one mouse interaction expected when tabbing back, which is frequently the case.

For most all other keys (except modifiers, Tab, Delete, but including Space, Enter), monitoring keypress would work for most applications - a key held down will continue to fire. There's some latency in resetting the key though, due to the periodicity of keypress firing. Basically, if keypress doesn't keep firing, then it's possible to rule out most of the keys. This, combined with the modifiers is pretty airtight, though I haven't explored what to do with Tab and Backspace.

I'm sure there's some library out there that abstracts over this DOM weakness, or maybe some DOM standard change took care of it, since it's a rather old question.

If you want to select town and total user count, you can use this query below:

SELECT Town, (SELECT Count(*) FROM User) `Count` FROM user GROUP BY Town;

Alt simplification of https://stackoverflow.com/users/1969435/gx1sptdtda above:

cond <-c(1,2,3)
rating <-c(100,200,300)
df <- data.frame(cond, rating)
df
  cond rating
1    1    100
2    2    200
3    3    300

It's because you're trying to assign an object by reference. Remove the ampersand and your script should work as intended.

You will certainly be able to do that using WITH clause, or use analytic functions available in Oracle SQL.

With some effort you'd be able to get anything out of them in terms of cycles as in ordinary procedural languages. Both approaches are pretty powerful compared to ordinary SQL.

http://www.dba-oracle.com/t_with_clause.htm

http://www.orafaq.com/node/55

It requires some effort though. Don't be afraid to post a concrete example.

Using simple pseudo table DUAL helps too.

There should be svn utility on you box, if installed:

$ svn checkout http://example.com/svn/somerepo somerepo

This will check out a working copy from a specified repository to a directory somerepo on our file system.

You may want to print commands, supported by this utility:

$ svn help

uname -a output in your question is identical to one, used by Parallels Virtuozzo Containers for Linux 4.0 kernel, which is based on Red Hat 5 kernel, thus your friends are rpm or the following command:

$ sudo yum install subversion

I found this problem too. Because centos service depend on multi-user.target for none desktop Cenots 7.2. so I delete multi-user.target from my .service file. It had missed.

sp_helplogins will give you the logins along with the DBs and the rights on them.

I started from @vitfo answer but I want to have <option> inside <select> instead of checkbox inputs so i put together all the answers to make this, there is my code, I hope it will help someone.

$(".multiple_select").mousedown(function(e) {_x000D_
    if (e.target.tagName == "OPTION") _x000D_
    {_x000D_
      return; //don't close dropdown if i select option_x000D_
    }_x000D_
    $(this).toggleClass('multiple_select_active'); //close dropdown if click inside <select> box_x000D_
});_x000D_
$(".multiple_select").on('blur', function(e) {_x000D_
    $(this).removeClass('multiple_select_active'); //close dropdown if click outside <select>_x000D_
});_x000D_
 _x000D_
$('.multiple_select option').mousedown(function(e) { //no ctrl to select multiple_x000D_
    e.preventDefault(); _x000D_
    $(this).prop('selected', $(this).prop('selected') ? false : true); //set selected options on click_x000D_
    $(this).parent().change(); //trigger change event_x000D_
});_x000D_
_x000D_
 _x000D_
 $("#myFilter").on('change', function() {_x000D_
      var selected = $("#myFilter").val().toString(); //here I get all options and convert to string_x000D_
      var document_style = document.documentElement.style;_x000D_
      if(selected !== "")_x000D_
        document_style.setProperty('--text', "'Selected: "+selected+"'");_x000D_
      else_x000D_
        document_style.setProperty('--text', "'Select values'");_x000D_
 });

:root_x000D_
{_x000D_
 --text: "Select values";_x000D_
}_x000D_
.multiple_select_x000D_
{_x000D_
 height: 18px;_x000D_
 width: 90%;_x000D_
 overflow: hidden;_x000D_
 -webkit-appearance: menulist;_x000D_
 position: relative;_x000D_
}_x000D_
.multiple_select::before_x000D_
{_x000D_
 content: var(--text);_x000D_
 display: block;_x000D_
  margin-left: 5px;_x000D_
  margin-bottom: 2px;_x000D_
}_x000D_
.multiple_select_active_x000D_
{_x000D_
 overflow: visible !important;_x000D_
}_x000D_
.multiple_select option_x000D_
{_x000D_
 display: none;_x000D_
    height: 18px;_x000D_
 background-color: white;_x000D_
}_x000D_
.multiple_select_active option_x000D_
{_x000D_
 display: block;_x000D_
}_x000D_
_x000D_
.multiple_select option::before {_x000D_
  content: "\2610";_x000D_
}_x000D_
.multiple_select option:checked::before {_x000D_
  content: "\2611";_x000D_
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<select id="myFilter" class="multiple_select" multiple>_x000D_
  <option>A</option>_x000D_
  <option>B</option>_x000D_
  <option>C</option>_x000D_
  <option>D</option>_x000D_
  <option>E</option>_x000D_
</select>

In your test, you are comparing the two TestParent beans, not the single TestedChild bean.

Also, Spring proxies your @Configuration class so that when you call one of the @Bean annotated methods, it caches the result and always returns the same object on future calls.

See here:

• How does Spring @Configuration cache references to beans

A rect can't contain a text element. Instead transform a g element with the location of text and rectangle, then append both the rectangle and the text to it:

var bar = chart.selectAll("g")
    .data(data)
  .enter().append("g")
    .attr("transform", function(d, i) { return "translate(0," + i * barHeight + ")"; });

bar.append("rect")
    .attr("width", x)
    .attr("height", barHeight - 1);

bar.append("text")
    .attr("x", function(d) { return x(d) - 3; })
    .attr("y", barHeight / 2)
    .attr("dy", ".35em")
    .text(function(d) { return d; });

http://bl.ocks.org/mbostock/7341714

Multi-line labels are also a little tricky, you might want to check out this wrap function.

String one = object.getdata();
Log.d(one,"");

This is working fine for me

I have add dependency

compile 'commons-codec:commons-codec:1.9'

ref: http://mvnrepository.com/artifact/commons-codec/commons-codec/1.9

my function

public String encode(String key, String data) {
    try {

        Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
        SecretKeySpec secret_key = new SecretKeySpec(key.getBytes("UTF-8"), "HmacSHA256");
        sha256_HMAC.init(secret_key);

        return new String(Hex.encodeHex(sha256_HMAC.doFinal(data.getBytes("UTF-8"))));

    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (InvalidKeyException e) {
        e.printStackTrace();
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }

    return null;
}

If you've configured a repository in your maven's settings.xml, check if you've access to it.

When I had this problem, there were enterprise repositories configured in settings.xml but I was out of the company.

For my purposes, in the context of a container view controller, I've found that

- (BOOL)isVisible {
    return (self.isViewLoaded && self.view.window && self.parentViewController != nil);
}

works well.

Second variant in question post is not ok, because, if you already have file with the same name, but it is not a directory, !file_exists($dir) will return false, folder will not be created, so error "failed to open stream: No such file or directory" will be occured. In Windows there is a difference between 'file' and 'folder' types, so need to use file_exists() and is_dir() at the same time, for ex.:

if (file_exists('file')) {
    if (!is_dir('file')) { //if file is already present, but it's not a dir
        //do something with file - delete, rename, etc.
        unlink('file'); //for example
        mkdir('file', NEEDED_ACCESS_LEVEL);
    }
} else { //no file exists with this name
    mkdir('file', NEEDED_ACCESS_LEVEL);
}

When you start up or just join a project based on webapplications, the design of interface is maybe good. Otherwise this should be changed. In order to Web 2.0 applications you will work with dynamic contents, many effects and other stuff. All these things are fine, but no one thought about to style up the JavaScript alert and confirm boxes. Here is the they way,.. completely dynamic, JS and CSS driven Create simple html file

<html>
 <head>
   <title>jsConfirmSyle</title>
   <meta http-equiv="Content-Style-Type" content="text/css" />
   <meta http-equiv="Content-Script-Type" content="text/javascript" />
    <script type="text/javascript" src="jsConfirmStyle.js"></script>
    <script type="text/javascript">

      function confirmation() {
       var answer = confirm("Wanna visit google?")
       if (answer){
       window.location = "http://www.google.com/";
       }
     }    

    </script>
    <style type="text/css">
     body {
      background-color: white;
      font-family: sans-serif;
      }
    #jsconfirm {
      border-color: #c0c0c0;
      border-width: 2px 4px 4px 2px;
      left: 0;
     margin: 0;
     padding: 0;
     position: absolute;
    top: -1000px;
    z-index: 100;
   }

  #jsconfirm table {
   background-color: #fff;
   border: 2px groove #c0c0c0;
   height: 150px;
   width: 300px;
  }

   #jsconfirmtitle {
  background-color: #B0B0B0;
  font-weight: bold;
  height: 20px;
  text-align: center;
}

 #jsconfirmbuttons {
height: 50px;
text-align: center;
 }

#jsconfirmbuttons input {
background-color: #E9E9CF;
color: #000000;
font-weight: bold;
width: 125px;
height: 33px;
padding-left: 20px;
}

#jsconfirmleft{
background-image: url(left.png);
}

#jsconfirmright{
background-image: url(right.png);
 }
 < /style>
  </head>
 <body>
<p><br />
<a href="#"
onclick="javascript:showConfirm('Please confirm','Are you really really sure to visit    google?','Yes','http://www.google.com','No','#')">JsConfirmStyled</a></p>
<p><a href="#" onclick="confirmation()">standard</a></p>

</body>
</html>

Then create simple js file name jsConfirmStyle.js. Here is simple js code

ie5=(document.getElementById&&document.all&&document.styleSheets)?1:0;
nn6=(document.getElementById&&!document.all)?1:0;

 xConfirmStart=800;
 yConfirmStart=100;

  if(ie5||nn6) {
  if(ie5) cs=2,th=30;
  else cs=0,th=20;
   document.write(
    "<div id='jsconfirm'>"+
        "<table>"+
            "<tr><td id='jsconfirmtitle'></td></tr>"+
            "<tr><td id='jsconfirmcontent'></td></tr>"+
            "<tr><td id='jsconfirmbuttons'>"+
                "<input id='jsconfirmleft' type='button' value='' onclick='leftJsConfirm()' onfocus='if(this.blur)this.blur()'>"+
                "&nbsp;&nbsp;"+
                "<input id='jsconfirmright' type='button' value='' onclick='rightJsConfirm()' onfocus='if(this.blur)this.blur()'>"+
            "</td></tr>"+
        "</table>"+
    "</div>"
  );
   }

 document.write("<div id='jsconfirmfade'></div>");


 function leftJsConfirm() {
  document.getElementById('jsconfirm').style.top=-1000;
  document.location.href=leftJsConfirmUri;
 }
function rightJsConfirm() {
document.getElementById('jsconfirm').style.top=-1000;
document.location.href=rightJsConfirmUri;
 }
function confirmAlternative() {
if(confirm("Scipt requieres a better browser!"))       document.location.href="http://www.mozilla.org";
}

leftJsConfirmUri = '';
rightJsConfirmUri = '';

  /**
   * Show the message/confirm box
  */
    function       showConfirm(confirmtitle,confirmcontent,confirmlefttext,confirmlefturi,confirmrighttext,con      firmrighturi)  {
document.getElementById("jsconfirmtitle").innerHTML=confirmtitle;
document.getElementById("jsconfirmcontent").innerHTML=confirmcontent;
document.getElementById("jsconfirmleft").value=confirmlefttext;
document.getElementById("jsconfirmright").value=confirmrighttext;
leftJsConfirmUri=confirmlefturi;
rightJsConfirmUri=confirmrighturi;
xConfirm=xConfirmStart, yConfirm=yConfirmStart;
if(ie5) {
    document.getElementById("jsconfirm").style.left='25%';
    document.getElementById("jsconfirm").style.top='35%';
}
else if(nn6) {
    document.getElementById("jsconfirm").style.top='25%';
    document.getElementById("jsconfirm").style.left='35%';
}
else confirmAlternative();

}

You can download full Source code from here

An alternative is to use OFFSET:

Assuming the column value is stored in B1, you can use the following

C1 = OFFSET(A1, 0, B1 - 1)

This works by:

a) taking a base cell (A1)
b) adding 0 to the row (keeping it as A)
c) adding (A5 - 1) to the column

You can also use another value instead of 0 if you want to change the row value too.

OK, normally it does not a good practice to add 2 answers in same thread, but I did not want to edit/delete my previous answer, since it can help on another manner.

Now, I created, much more comprehensive, and easy to understand, run-to-learn console app snippet below.

Just run the examples on two different consoles, and observe behaviour. You will get much more clear idea there what is happening behind the scenes.

Manual Reset Event

using System;
using System.Threading;

namespace ConsoleApplicationDotNetBasics.ThreadingExamples
{
    public class ManualResetEventSample
    {
        private readonly ManualResetEvent _manualReset = new ManualResetEvent(false);

        public void RunAll()
        {
            new Thread(Worker1).Start();
            new Thread(Worker2).Start();
            new Thread(Worker3).Start();
            Console.WriteLine("All Threads Scheduled to RUN!. ThreadId: {0}", Thread.CurrentThread.ManagedThreadId);
            Console.WriteLine("Main Thread is waiting for 15 seconds, observe 3 thread behaviour. All threads run once and stopped. Why? Because they call WaitOne() internally. They will wait until signals arrive, down below.");
            Thread.Sleep(15000);
            Console.WriteLine("1- Main will call ManualResetEvent.Set() in 5 seconds, watch out!");
            Thread.Sleep(5000);
            _manualReset.Set();
            Thread.Sleep(2000);
            Console.WriteLine("2- Main will call ManualResetEvent.Set() in 5 seconds, watch out!");
            Thread.Sleep(5000);
            _manualReset.Set();
            Thread.Sleep(2000);
            Console.WriteLine("3- Main will call ManualResetEvent.Set() in 5 seconds, watch out!");
            Thread.Sleep(5000);
            _manualReset.Set();
            Thread.Sleep(2000);
            Console.WriteLine("4- Main will call ManualResetEvent.Reset() in 5 seconds, watch out!");
            Thread.Sleep(5000);
            _manualReset.Reset();
            Thread.Sleep(2000);
            Console.WriteLine("It ran one more time. Why? Even Reset Sets the state of the event to nonsignaled (false), causing threads to block, this will initial the state, and threads will run again until they WaitOne().");
            Thread.Sleep(10000);
            Console.WriteLine();
            Console.WriteLine("This will go so on. Everytime you call Set(), ManualResetEvent will let ALL threads to run. So if you want synchronization between them, consider using AutoReset event, or simply user TPL (Task Parallel Library).");
            Thread.Sleep(5000);
            Console.WriteLine("Main thread reached to end! ThreadId: {0}", Thread.CurrentThread.ManagedThreadId);

        }

        public void Worker1()
        {
            for (int i = 1; i <= 10; i++)
            {
                Console.WriteLine("Worker1 is running {0}/10. ThreadId: {1}.", i, Thread.CurrentThread.ManagedThreadId);
                Thread.Sleep(5000);
                // this gets blocked until _autoReset gets signal
                _manualReset.WaitOne();
            }
            Console.WriteLine("Worker1 is DONE. ThreadId: {0}", Thread.CurrentThread.ManagedThreadId);
        }
        public void Worker2()
        {
            for (int i = 1; i <= 10; i++)
            {
                Console.WriteLine("Worker2 is running {0}/10. ThreadId: {1}.", i, Thread.CurrentThread.ManagedThreadId);
                Thread.Sleep(5000);
                // this gets blocked until _autoReset gets signal
                _manualReset.WaitOne();
            }
            Console.WriteLine("Worker2 is DONE. ThreadId: {0}", Thread.CurrentThread.ManagedThreadId);
        }
        public void Worker3()
        {
            for (int i = 1; i <= 10; i++)
            {
                Console.WriteLine("Worker3 is running {0}/10. ThreadId: {1}.", i, Thread.CurrentThread.ManagedThreadId);
                Thread.Sleep(5000);
                // this gets blocked until _autoReset gets signal
                _manualReset.WaitOne();
            }
            Console.WriteLine("Worker3 is DONE. ThreadId: {0}", Thread.CurrentThread.ManagedThreadId);
        }
    }

}

Auto Reset Event

using System;
using System.Threading;

namespace ConsoleApplicationDotNetBasics.ThreadingExamples
{
    public class AutoResetEventSample
    {
        private readonly AutoResetEvent _autoReset = new AutoResetEvent(false);

        public void RunAll()
        {
            new Thread(Worker1).Start();
            new Thread(Worker2).Start();
            new Thread(Worker3).Start();
            Console.WriteLine("All Threads Scheduled to RUN!. ThreadId: {0}", Thread.CurrentThread.ManagedThreadId);
            Console.WriteLine("Main Thread is waiting for 15 seconds, observe 3 thread behaviour. All threads run once and stopped. Why? Because they call WaitOne() internally. They will wait until signals arrive, down below.");
            Thread.Sleep(15000);
            Console.WriteLine("1- Main will call AutoResetEvent.Set() in 5 seconds, watch out!");
            Thread.Sleep(5000);
            _autoReset.Set();
            Thread.Sleep(2000);
            Console.WriteLine("2- Main will call AutoResetEvent.Set() in 5 seconds, watch out!");
            Thread.Sleep(5000);
            _autoReset.Set();
            Thread.Sleep(2000);
            Console.WriteLine("3- Main will call AutoResetEvent.Set() in 5 seconds, watch out!");
            Thread.Sleep(5000);
            _autoReset.Set();
            Thread.Sleep(2000);
            Console.WriteLine("4- Main will call AutoResetEvent.Reset() in 5 seconds, watch out!");
            Thread.Sleep(5000);
            _autoReset.Reset();
            Thread.Sleep(2000);
            Console.WriteLine("Nothing happened. Why? Becasuse Reset Sets the state of the event to nonsignaled, causing threads to block. Since they are already blocked, it will not affect anything.");
            Thread.Sleep(10000);
            Console.WriteLine("This will go so on. Everytime you call Set(), AutoResetEvent will let another thread to run. It will make it automatically, so you do not need to worry about thread running order, unless you want it manually!");
            Thread.Sleep(5000);
            Console.WriteLine("Main thread reached to end! ThreadId: {0}", Thread.CurrentThread.ManagedThreadId);

        }

        public void Worker1()
        {
            for (int i = 1; i <= 5; i++)
            {
                Console.WriteLine("Worker1 is running {0}/5. ThreadId: {1}.", i, Thread.CurrentThread.ManagedThreadId);
                Thread.Sleep(500);
                // this gets blocked until _autoReset gets signal
                _autoReset.WaitOne();
            }
            Console.WriteLine("Worker1 is DONE. ThreadId: {0}", Thread.CurrentThread.ManagedThreadId);
        }
        public void Worker2()
        {
            for (int i = 1; i <= 5; i++)
            {
                Console.WriteLine("Worker2 is running {0}/5. ThreadId: {1}.", i, Thread.CurrentThread.ManagedThreadId);
                Thread.Sleep(500);
                // this gets blocked until _autoReset gets signal
                _autoReset.WaitOne();
            }
            Console.WriteLine("Worker2 is DONE. ThreadId: {0}", Thread.CurrentThread.ManagedThreadId);
        }
        public void Worker3()
        {
            for (int i = 1; i <= 5; i++)
            {
                Console.WriteLine("Worker3 is running {0}/5. ThreadId: {1}.", i, Thread.CurrentThread.ManagedThreadId);
                Thread.Sleep(500);
                // this gets blocked until _autoReset gets signal
                _autoReset.WaitOne();
            }
            Console.WriteLine("Worker3 is DONE. ThreadId: {0}", Thread.CurrentThread.ManagedThreadId);
        }
    }

}

I don't have much experience working with php but from a logic standpoint this is what I would do.

1. Loop through your result set from MySQL
2. In Excel you should already know what A,B,C should be because those are the columns and you know how many columns you are returning.
3. The row number can just be incremented with each time through the loop.

Below is some pseudocode illustrating this technique:

    for (int i = 0; i < MySQLResults.count; i++){
         $objPHPExcel->getActiveSheet()->setCellValue('A' . (string)(i + 1), MySQLResults[i].name); 
        // Add 1 to i because Excel Rows start at 1, not 0, so row will always be one off
         $objPHPExcel->getActiveSheet()->setCellValue('B' . (string)(i + 1), MySQLResults[i].number);
         $objPHPExcel->getActiveSheet()->setCellValue('C' . (string)(i + 1), MySQLResults[i].email);
    }

Python is dynamic language so the IDE can do only so much in terms of code intelligence and syntax checking but I personally recommend Komode IDE, it's pretty slick on OS/X and Windows. I've experienced high cpu use with Linux but not sure if it's caused by my VirtualBox environment.

You can also try Eclipse with PyDev plugin. It's heavier so performance might become a problem though.

. matches any character so needs escaping i.e. \., or \\. within a Java string (because \ itself has special meaning within Java strings.)

You can then use \.\. or \.{2} to match exactly 2 dots.

There is a very good answer to the same question.
Adding following lines to "~/.gitconfig":

[alias]
lg1 = log --graph --abbrev-commit --decorate --date=relative --format=format:'%C(bold blue)%h%C(reset) - %C(bold green)(%ar)%C(reset) %C(white)%s%C(reset) %C(dim white)- %an%C(reset)%C(bold yellow)%d%C(reset)' --all
lg2 = log --graph --abbrev-commit --decorate --format=format:'%C(bold blue)%h%C(reset) - %C(bold cyan)%aD%C(reset) %C(bold green)(%ar)%C(reset)%C(bold yellow)%d%C(reset)%n''          %C(white)%s%C(reset) %C(dim white)- %an%C(reset)' --all
lg = !"git lg1"

In C99(ISO/IEC 9899:TC3) which seems absent from this discussion thus far the following steteents are made regarding order of evaluaiton.

[...]the order of evaluation of subexpressions and the order in which side effects take place are both unspecified. (Section 6.5 pp 67)

The order of evaluation of the operands is unspecified. If an attempt is made to modify the result of an assignment operator or to access it after the next sequence point, the behavior[sic] is undefined.(Section 6.5.16 pp 91)

If you want the .DS_Store files to become invisible (they still exist but can't be seen) then run the following command in the "Terminal" window:

defaults write com.apple.finder AppleShowAllFiles FALSE; killall Finder

This will set the system default to stop showing these files on your Desktop and elsewhere. It will also restart the Finder in order to make this change visible (especially on your Desktop).

Correct way to check for null or empty or string containing only spaces is like this:

if(str != null && !str.trim().isEmpty()) { /* do your stuffs here */ }

In javascript there are no block-level scopes only function-level scopes:

Read this article about javaScript Scoping and Hoisting.

See how I debugged your code:

var deferred = $q.defer();
deferred.count = i;

console.log(deferred.count); // 0,1,2,3,4,5 --< all deferred objects

// some code

.success(function(data){
   console.log(deferred.count); // 5,5,5,5,5,5 --< only the last deferred object
   deferred.resolve(data);
})

• When you write var deferred= $q.defer(); inside a for loop it's hoisted to the top of the function, it means that javascript declares this variable on the function scope outside of the for loop.
• With each loop, the last deferred is overriding the previous one, there is no block-level scope to save a reference to that object.
• When asynchronous callbacks (success / error) are invoked, they reference only the last deferred object and only it gets resolved, so $q.all is never resolved because it still waits for other deferred objects.
• What you need is to create an anonymous function for each item you iterate.
• Since functions do have scopes, the reference to the deferred objects are preserved in a closure scope even after functions are executed.
• As #dfsq commented: There is no need to manually construct a new deferred object since $http itself returns a promise.

  ---

Solution with angular.forEach:

Here is a demo plunker: http://plnkr.co/edit/NGMp4ycmaCqVOmgohN53?p=preview

UploadService.uploadQuestion = function(questions){

    var promises = [];

    angular.forEach(questions , function(question) {

        var promise = $http({
            url   : 'upload/question',
            method: 'POST',
            data  : question
        });

        promises.push(promise);

    });

    return $q.all(promises);
}

My favorite way is to use Array#map:

Here is a demo plunker: http://plnkr.co/edit/KYeTWUyxJR4mlU77svw9?p=preview

UploadService.uploadQuestion = function(questions){

    var promises = questions.map(function(question) {

        return $http({
            url   : 'upload/question',
            method: 'POST',
            data  : question
        });

    });

    return $q.all(promises);
}

I am not a java professional, but I have the same problem and I tried to solve by this method. (It suppose that T has a copy constructor).

 public static <T extends Object> List<T> clone(List<T> list) {
      try {
           List<T> c = list.getClass().newInstance();
           for(T t: list) {
             T copy = (T) t.getClass().getDeclaredConstructor(t.getclass()).newInstance(t);
             c.add(copy);
           }
           return c;
      } catch(Exception e) {
           throw new RuntimeException("List cloning unsupported",e);
      }
}

According to RFC2965 3.3.1 (which might or might not be followed by browsers), unless the port is explicitly specified via the port parameter of the Set-Cookie header, cookies might or might not be sent to any port.

Google's Browser Security Handbook says: by default, cookie scope is limited to all URLs on the current host name - and not bound to port or protocol information. and some lines later There is no way to limit cookies to a single DNS name only [...] likewise, there is no way to limit them to a specific port. (Also, keep in mind, that IE does not factor port numbers into its same-origin policy at all.)

So it does not seem to be safe to rely on any well-defined behavior here.

When you want to put your Servlet file in your custom location or with custom name, rather than the default naming convention [servletname]-servlet.xml and path under Web-INF/ ,then you can use ContextLoaderListener.

I encountered the same error than adding

Task.Delay(2000);

in each request solved the problem

Another dirty hack, which will make all your requests insecure:

process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = 0

None of the solutions mentioned above worked for a hostname that is different from localhost!

I had to add notify: false to the list of options that I pass to $state.go, to avoid calling Angular change listeners, before $window.location.reload call gets called. Final code looks like:

$state.go('home', {}, {reload: true, notify: false});

>>> EDIT - $timeout might be necessary depending on your browser >>>

$timeout(function () { $window.location.reload(true); }, 100);

<<< END OF EDIT <<<

More about this on ui-router reference.

There's one huge difference between git and mercurial; the way the represent each commit. git represents commits as snapshots, while mercurial represents them as diffs.

What does this means in practice? Well, many operations are faster in git, such as switching to another commit, comparing commits, etc. Specially if these commits are far away.

AFAIK there's no advantage of mercurial's approach.

I created a sample project on github to load a UIView from a .xib file inside another .xib file. Or you can do it programmatically.

This is good for little widgets you want to reuse on different UIViewController objects.

1. New Approach: https://github.com/PaulSolt/CustomUIView
2. Original Approach: https://github.com/PaulSolt/CompositeXib

JFrame.setVisible(true);

You can either use setVisible(false) or dispose() method to disappear current form.

In class poll, you inherited your class from models.model but there's no module in models called that name.

Because Python is case sensitive, you need to use the capital Model instead of model.

class poll(models.Model):
...

If you use the $.ajax function, you can simply add the csrf token in the data body:

$.ajax({
    data: {
        somedata: 'somedata',
        moredata: 'moredata',
        csrfmiddlewaretoken: '{{ csrf_token }}'
    },

Take a look at this forum http://htmlcoderhelper.com/why-is-using-a-wild-card-with-a-java-import-statement-bad/. Theres a discussion on how using wildcards can lead to conflicts if you add new classes to the packages and if there are two classes with the same name in different packages where only one of them will be imported.

Update

List<Integer> i = new ArrayList<Integer>(Arrays.asList(0,1,2,3,4,5,6,7,8,9,10));
List<Integer> j = new ArrayList<Integer>();

You need to specify the type for array list or the compiler will give that warning because it cannot identify that you are using the list in a type safe way.

When I worked with Windows, I found handy HashTab 3rd party tool. It shows MD5, SHA-1 check sums in one of file properties tabs. http://implbits.com/products/hashtab/

I found this post and I have just posted something on my blog that might help.

See Setting up a Msysgit Server with copSSH on Windows. It's long, but I have successfully got this working on Windows 7 Ultimate x64.

Return function

var array = (new Function("return [" + str+ "];")());

Its accept string and objectstrings:

var string = "0,1";

var objectstring = '{Name:"Tshirt", CatGroupName:"Clothes", Gender:"male-female"}, {Name:"Dress", CatGroupName:"Clothes", Gender:"female"}, {Name:"Belt", CatGroupName:"Leather", Gender:"child"}';

var stringArray = (new Function("return [" + string+ "];")());

var objectStringArray = (new Function("return [" + objectstring+ "];")());

JSFiddle https://jsfiddle.net/7ne9L4Lj/1/

Big thanks to Mike and Robertc for their helpful posts!

If you have two elements in your HTML and you want to :hover over one and target a style change in the other the two elements must be directly related--parents, children or siblings. This means that the two elements either must be one inside the other or must both be contained within the same larger element.

I wanted to display definitions in a box on the right side of the browser as my users read through my site and :hover over highlighted terms; therefore, I did not want the 'definition' element to be displayed inside the 'text' element.

I almost gave up and just added javascript to my page, but this is the future dang it! We should not have to put up with back sass from CSS and HTML telling us where we have to place our elements to achieve the effects we want! In the end we compromised.

While the actual HTML elements in the file must be either nested or contained in a single element to be valid :hover targets to each other, the css position attribute can be used to display any element where ever you want. I used position:fixed to place the target of my :hover action where I wanted it on the user's screen regardless to its location in the HTML document.

The html:

<div id="explainBox" class="explainBox"> /*Common parent*/

  <a class="defP" id="light" href="http://en.wikipedia.or/wiki/Light">Light                            /*highlighted term in text*/
  </a> is as ubiquitous as it is mysterious. /*plain text*/

  <div id="definitions"> /*Container for :hover-displayed definitions*/
    <p class="def" id="light"> /*example definition entry*/ Light:
      <br/>Short Answer: The type of energy you see
    </p>
  </div>

</div>

The css:

/*read: "when user hovers over #light somewhere inside #explainBox
    set display to inline-block for #light directly inside of #definitions.*/

#explainBox #light:hover~#definitions>#light {
  display: inline-block;
}

.def {
  display: none;
}

#definitions {
  background-color: black;
  position: fixed;
  /*position attribute*/
  top: 5em;
  /*position attribute*/
  right: 2em;
  /*position attribute*/
  width: 20em;
  height: 30em;
  border: 1px solid orange;
  border-radius: 12px;
  padding: 10px;
}

In this example the target of a :hover command from an element within #explainBox must either be #explainBox or also within #explainBox. The position attributes assigned to #definitions force it to appear in the desired location (outside #explainBox) even though it is technically located in an unwanted position within the HTML document.

I understand it is considered bad form to use the same #id for more than one HTML element; however, in this case the instances of #light can be described independently due to their respective positions in uniquely #id'd elements. Is there any reason not to repeat the id #light in this case?

The predicate-based searching methods allow a method delegate or lambda expression to decide whether a given element is a “match.” A predicate is simply a delegate accepting an object and returning true or false: public delegate bool Predicate (T object);

   static void Main()
        {
            string[] names = { "Lukasz", "Darek", "Milosz" };
            string match1 = Array.Find(names, delegate(string name) { return name.Contains("L"); });
            //or
            string match2 = Array.Find(names, delegate(string name) { return name.Contains("L"); });
            //or
            string match3 = Array.Find(names, x => x.Contains("L"));


            Console.WriteLine(match1 + " " + match2 + " " + match3);     // Lukasz Lukasz Lukasz
        }
        static bool ContainsL(string name) { return name.Contains("L"); }

They are ASCII dec codes. A full table can be found here.

& is a logical elementwise operator, while && is a logical short-circuiting operator (which can only operate on scalars).

For example (pardon my syntax).

If..

A = [True True False True]
B = False
A & B = [False False False False]

..or..

B = True
A & B = [True True False True]

For &&, the right operand is only calculated if the left operand is true, and the result is a single boolean value.

x = (b ~= 0) && (a/b > 18.5)

Hope that's clear.

with in the code editor, Open the class you want to create the UID for , Right click -> Generate -> SerialVersionUID. You may need to have the GenerateSerialVersionUID plugin installed for this to work.

Are you talking about automated unit/integration tests or manual tests?

For the former, my rule of thumb (based on measurements) is 40-50% added to development time i.e. if developing a use case takes 10 days (before an QA and serious bugfixing happens), writing good tests takes another 4 to 5 days - though this should best happen before and during development, not afterwards.

The solutions already posted came with the sideffect, that the first .show() call did not animate the ActionBar for me. I got another nice solution, which fixed that:

Create a transparent drawable - something like that:

<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid
       android:color="#00000000" />
</shape>

Set the actual actionbar background to a invisible custom view which you set on the actionbar:

getSupportActionBar().setCustomView(R.layout.actionbar_custom_layout);
      getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM,
              ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_SHOW_HOME | ActionBar.DISPLAY_SHOW_TITLE);

Set the transparent background for the actionbar in onCreate:

getSupportActionBar().setBackgroundDrawable(getResources().getDrawable(R.drawable.background_transparent));

Imortant: Don't hide the actionbar immediately in onCreate, but with a little delay later - e.g. when the layout is finished with creation:

getWindow().getDecorView().getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
                @Override
                public void onGlobalLayout() {
                    getSupportActionBar().hide();
                }
            });

Before your first .show() call set the custom view visible:

_actionbarRoot.setVisibility(View.VISIBLE);
getSupportActionBar().show();

You can rearrange columns directly by specifying their order:

df = df[['a', 'y', 'b', 'x']]

In the case of larger dataframes where the column titles are dynamic, you can use a list comprehension to select every column not in your target set and then append the target set to the end.

>>> df[[c for c in df if c not in ['b', 'x']] 
       + ['b', 'x']]
   a  y  b   x
0  1 -1  2   3
1  2 -2  4   6
2  3 -3  6   9
3  4 -4  8  12

To make it more bullet proof, you can ensure that your target columns are indeed in the dataframe:

cols_at_end = ['b', 'x']
df = df[[c for c in df if c not in cols_at_end] 
        + [c for c in cols_at_end if c in df]]

This function works beautifully for me.

function ParseDateForSave(dateValue) {
    // create a new date object
    var newDate = new Date(parseInt(dateValue.substr(6)));

    // return the UTC version of the date
    return newDate.toISOString();
}

There is a problem with the accepted answer. I think we need to use "valid" instead of "same" here - return numpy.convolve(interval, window, 'same') .

As an Example try out the MA of this data-set = [1,5,7,2,6,7,8,2,2,7,8,3,7,3,7,3,15,6] - the result should be [4.2,5.4,6.0,5.0,5.0,5.2,5.4,4.4,5.4,5.6,5.6,4.6,7.0,6.8], but having "same" gives us an incorrect output of [2.6,3.0,4.2,5.4,6.0,5.0,5.0,5.2,5.4,4.4,5.4,5.6,5.6, 4.6,7.0,6.8,6.2,4.8]

Rusty code to try this out -:

result=[]
dataset=[1,5,7,2,6,7,8,2,2,7,8,3,7,3,7,3,15,6]
window_size=5
for index in xrange(len(dataset)):
    if index <=len(dataset)-window_size :
        tmp=(dataset[index]+ dataset[index+1]+ dataset[index+2]+ dataset[index+3]+ dataset[index+4])/5.0
        result.append(tmp)
    else:
      pass

result==movingaverage(y, window_size) 

Try this with valid & same and see whether the math makes sense.

See also -: http://sentdex.com/sentiment-analysisbig-data-and-python-tutorials-algorithmic-trading/how-to-chart-stocks-and-forex-doing-your-own-financial-charting/calculate-simple-moving-average-sma-python/

Cast the operands to floats:

float ans = (float)a / (float)b;

IN LARAVEL 5.2 AND UP:

Write your usual code between the opening and closing PHP statements.

@php
switch (x) {
    case 1:
        //code to be executed
        break;
    default:
        //code to be executed
}
@endphp

pip is designed to upgrade python packages and not to upgrade python itself. pip shouldn't try to upgrade python when you ask it to do so.

Don't type pip install python but use an installer instead.

TinyXML, and also Boost.PropertyTree. The latter does not fulfill all official requirements, but is very simple.

I just input some value that I knew was invalid and here is the output:

'whatToInput' is not a supported event for HtmlPanelGrid. Please specify one of these supported event names: click, dblclick, keydown, keypress, keyup, mousedown, mousemove, mouseout, mouseover, mouseup.

So values you can pass to event are

• click
• dblclick
• keydown
• mousedown
• mousemove
• mouseover
• mouseup

I ran into same error, although i was using gradle build. Delegating IDE build/run actions to Gradle is solved my problem.

Intellij: Settings -> Build, Execution, Deployment -> Build Tools -> Gradle -> Runner

This works mostly.

drop index IX_dbo_YourTableName__YourColumnName on dbo.YourTableName
GO

Add angular cookie lib : angular-cookies.js

You can use $cookies or $cookieStore parameter to the respective controller

Main controller add this inject 'ngCookies':

angular.module("myApp", ['ngCookies']);

Use Cookies in your controller like this way:

 app.controller('checkoutCtrl', function ($scope, $rootScope, $http, $state, $cookies) { 

//store cookies

 $cookies.putObject('final_total_price', $rootScope.fn_pro_per);

//Get cookies

 $cookies.getObject('final_total_price'); }

You need:

$ro = preg_replace('/\s+/', ' ',$row['message']);

You are using \s\s+ which means whitespace(space, tab or newline) followed by one or more whitespace. Which effectively means replace two or more whitespace with a single space.

What you want is replace one or more whitespace with single whitespace, so you can use the pattern \s\s* or \s+ (recommended)

Include Modernizr on your page and set your hover states like this instead:

html.no-touchevents .box:hover {
    background: blue;
}

You can do it by running with following command.

php -S localhost:8888

Since v1.0 you can toggle word wrap:

• with the new command editor.action.toggleWordWrap, or
• from the View menu (*View** → Toggle Word Wrap), or
• using the ALT+Z keyboard shortcut (for Mac: ?+Z).

It can also be controlled with the following settings:

• editor.wordWrap
• editor.wordWrapColumn
• editor.wrappingIndent

Known issues:

1. renderLineHighlight should highlight the entire logical line

If you'd like these bugs fixed, please vote for them.

Center it horizontally:

display: fixed;
top: 0; 
left: 0;
transform: translate(calc(50vw - 50%));

Center it horizontally and vertically:

display: fixed;
top: 0; 
left: 0;
transform: translate(calc(50vw - 50%), calc(50vh - 50%));

No side effect: It will not limit element's width when using margins in flexbox

This works for me, I only need first numbers in string:

TO_NUMBER(regexp_substr(h.HIST_OBSE, '\.*[[:digit:]]+\.*[[:digit:]]*'))

the field had the following string: "(43 Paginas) REGLAS DE PARTICIPACION".

result field: 43

A find/rename solution. rename is part of util-linux.

You need to descend depth first, because a whitespace filename can be part of a whitespace directory:

find /tmp/ -depth -name "* *" -execdir rename " " "_" "{}" ";"

Looks like this will be finally supported in the SQL Server 2019! SQL Server 2019 - whats new?

From BOL:

UTF-8 support

Full support for the widely used UTF-8 character encoding as an import or export encoding, or as database-level or column-level collation for text data. UTF-8 is allowed in the CHAR and VARCHAR datatypes, and is enabled when creating or changing an object’s collation to a collation with the UTF8 suffix.

For example,LATIN1_GENERAL_100_CI_AS_SC to LATIN1_GENERAL_100_CI_AS_SC_UTF8. UTF-8 is only available to Windows collations that support supplementary characters, as introduced in SQL Server 2012. NCHAR and NVARCHAR allow UTF-16 encoding only, and remain unchanged.

This feature may provide significant storage savings, depending on the character set in use. For example, changing an existing column data type with ASCII strings from NCHAR(10) to CHAR(10) using an UTF-8 enabled collation, translates into nearly 50% reduction in storage requirements. This reduction is because NCHAR(10) requires 22 bytes for storage, whereas CHAR(10) requires 12 bytes for the same Unicode string.

2019-05-14 update:

Documentation seems to be updated now and explains our options staring in MSSQL 2019 in section "Collation and Unicode Support".

2019-07-24 update:

Article by Pedro Lopes - Senior Program Manager @ Microsoft about introducing UTF-8 support for Azure SQL Database

Try this !!!. This will solve your problem for sure!

Method 1 -

Step 1 - Go to 'Environmental Variables'.

Step 2 - Find PATH variable and add the path to your PHP folder.

Step 3 - For 'XAMPP' users put 'C:\xampp\php' and 'WAMP' users put 'C:\wamp64\bin\php\php7.1.9' ) and save.

Method 2-

In VS Code

File -> Preferences -> Settings.

Open 'settings.json' file and put the below codes.

If you are using WAMP put this code and Save.

  "php.validate.executablePath": "C:\\wamp64\\bin\\php\\php7.1.9\\php.exe",
  "php.executablePath": "C:\\wamp64\\bin\\php\\php7.1.9\\php.exe"

If you are using XAMPP put this code and Save.

  "php.validate.executablePath": "C:\\xampp\\php\\php.exe",
  "php.executablePath": "C:\\xampp\\php\\php.exe"

Note - Replace php7.1.9 with your PHP version.

The == operator checks to see if two objects are exactly the same object. Two strings may be different objects, but have the same value (have exactly the same characters in them). Use the .equals() method to compare strings for equality.

http://www.leepoint.net/notes-java/data/strings/12stringcomparison.html

Here's an idea. Imagine an HSV cylinder

Define the upper and lower limits you want for the Brightness and Saturation. This defines a square cross section ring within the space.

Now, scatter N points randomly within this space.

Then apply an iterative repulsion algorithm on them, either for a fixed number of iterations, or until the points stabilise.

Now you should have N points representing N colours that are about as different as possible within the colour space you're interested in.

Hugo

Partial mocking of a class is also supported via Spy in mockito

List list = new LinkedList();
List spy = spy(list);

//optionally, you can stub out some methods:
when(spy.size()).thenReturn(100);

//using the spy calls real methods
spy.add("one");
spy.add("two");

//size() method was stubbed - 100 is printed
System.out.println(spy.size());

Check the 1.10.19 and 2.7.22 docs for detailed explanation.

Android Studio (version: 1.3.2) allows you to seamlessly access the .jar inside a .aar.

Bonus: it automatically decompiles the classes!

Simply follow these steps:

1. File > New > New Module > Import .JAR/.AAR Package to import you .aar as a module

2. Add the newly created module as a dependency to your main project (not sure if needed)

3. Right click on "classes.jar" as shown in the capture below, and click "Show in explorer". Here is your .jar.

It sets the distance of the inset between the content view and the enclosing scroll view.

Obj-C

aScrollView.contentInset = UIEdgeInsetsMake(0, 0, 0, 7.0);

Swift 5.0

aScrollView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 7.0)

Here's a good iOS Reference Library article on scroll views that has an informative screenshot (fig 1-3) - I'll replicate it via text here:

  _|?_cW_?_|_?_
   |       | 
---------------
   |content| ?
 ? |content| contentInset.top
cH |content|
 ? |content| contentInset.bottom
   |content| ?
---------------
  _|_______|___ 
             ?


   (cH = contentSize.height; cW = contentSize.width)

The scroll view encloses the content view plus whatever padding is provided by the specified content insets.

You want the gcc-specific noinline attribute.

This function attribute prevents a function from being considered for inlining. If the function does not have side-effects, there are optimizations other than inlining that causes function calls to be optimized away, although the function call is live. To keep such calls from being optimized away, put asm ("");

Use it like this:

void __attribute__ ((noinline)) foo() 
{
  ...
}

In VB:

from m in MyTable
take 10
select m.Foo

This assumes that MyTable implements IQueryable. You may have to access that through a DataContext or some other provider.

It also assumes that Foo is a column in MyTable that gets mapped to a property name.

See http://blogs.msdn.com/vbteam/archive/2008/01/08/converting-sql-to-linq-part-7-union-top-subqueries-bill-horst.aspx for more detail.

You can create a .timer systemd unit file to control the execution of your .service unit file.

So for example, to wait for 1 minute after boot-up before starting your foo.service, create a foo.timer file in the same directory with the contents:

[Timer]
OnBootSec=1min

It is important that the service is disabled (so it doesn't start at boot), and the timer enabled, for all this to work (thanks to user tride for this):

systemctl disable foo.service
systemctl enable foo.timer

You can find quite a few more options and all information needed here: https://wiki.archlinux.org/index.php/Systemd/Timers

Here's a possible solution:

Snippet:

ul {_x000D_
  width: 760px;_x000D_
  margin-bottom: 20px;_x000D_
  overflow: hidden;_x000D_
  border-top: 1px solid #ccc;_x000D_
}_x000D_
li {_x000D_
  line-height: 1.5em;_x000D_
  border-bottom: 1px solid #ccc;_x000D_
  float: left;_x000D_
  display: inline;_x000D_
}_x000D_
#double li {_x000D_
  width: 50%;_x000D_
}

<ul id="double">_x000D_
  <li>first</li>_x000D_
  <li>second</li>_x000D_
  <li>third</li>_x000D_
  <li>fourth</li>_x000D_
</ul>

And it is done.
For 3 columns use li width as 33%, for 4 columns use 25% and so on.

I had this error, along with others, after I changed my tsconfig.json to target:"es2015", and module:"es2015".

The base (AngularJS2 quickstart) used /// <reference path="../../typings/index.d.ts" /> in the main.ts file. To solve this, I had to remove that line.

Still surprised that no one proposed the shortest solution with align-center justify-center to center content vertically and horizontally. Check this CodeSandbox and code below:

<v-container fluid fill-height>
  <v-layout align-center justify-center>
    <v-flex>
      <!-- Some HTML elements... -->
    </v-flex>
  </v-layout>
</v-container>

You can use a closure of JavaScript:

function wrapper( var1, var2,....) // put here your variables
{
  return function( data, status)
  {
     //Handle here results of call
  }
};

and when you can do:

$.post("someurl.php",data,wrapper(var1, var2, etc...),"html");

To Answer your first question, Jenkins variables are case sensitive. However, if you are writing a windows batch script, they are case insensitive, because Windows doesn't care about the case.

Since you are not very clear about your setup, let's make the assumption that you are using an ant build step to fire up your ant task. Have a look at the Jenkins documentation (same page that Adarsh gave you, but different chapter) for an example on how to make Jenkins variables available to your ant task.

EDIT:

Hence, I will need to access the environmental variable ${BUILD_NUMBER} to construct the URL.

Why don't you use $BUILD_URL then? Isn't it available in the extended email plugin?

class Demo(models.Model):
    ...
    @property
    def property_name(self):
        ...

If you want to use the same property name:

class DemoSerializer(serializers.ModelSerializer):
    property_name = serializers.ReadOnlyField()
    class Meta:
        model = Product
        fields = '__all__' # or you can choose your own fields

If you want to use different property name, just change this:

new_property_name = serializers.ReadOnlyField(source='property_name')

Just noting a different way of questionable usefulness, using os.environ:

import os
python_executable_path = os.environ['_']

e.g.

$ python -c "import os; print(os.environ['_'])"
/usr/bin/python

As such there is no direct method to copy or rename index in ES (I did search extensively for my own project)

However a very easy option is to use a popular migration tool [Elastic-Exporter].

http://www.retailmenot.com/corp/eng/posts/2014/12/02/elasticsearch-cluster-migration/

[PS: this is not my blog, just stumbled upon and found it good]

Thereby you can copy index/type and then delete the old one.

Please find below the easy way :

XSSFCellStyle style = workbook.createCellStyle();
style.setBorderTop((short) 6); // double lines border
style.setBorderBottom((short) 1); // single line border
XSSFFont font = workbook.createFont();
font.setFontHeightInPoints((short) 15);
font.setBoldweight(XSSFFont.BOLDWEIGHT_BOLD);
style.setFont(font);                 

Row row = sheet.createRow(0);   
Cell cell0 = row.createCell(0);
cell0.setCellValue("Nav Value");
cell0.setCellStyle(style);  
for(int j = 0; j<=3; j++)
row.getCell(j).setCellStyle(style);

For Python 3:

{k:v for k,v in d.items() if v}

The RegExp constructor creates a regular expression object for matching text with a pattern.

    var pattern1 = ':\\(|:=\\(|:-\\(';
    var pattern2 = ':\\(|:=\\(|:-\\(|:\\(|:=\\(|:-\\(';
    var regex = new RegExp(pattern1 + '|' + pattern2, 'gi');
    str.match(regex);

Above code works perfectly for me...

For those tasks I use most of the time block selection.

Put your cursor on the first # character, press CtrlV (or CtrlQ for gVim), and go down until the last commented line and press x, that will delete all the # characters vertically.

For commenting a block of text is almost the same:

1. First, go to the first line you want to comment, press CtrlV. This will put the editor in the VISUAL BLOCK mode.
2. Then using the arrow key and select until the last line
3. Now press ShiftI, which will put the editor in INSERT mode and then press #. This will add a hash to the first line.
4. Then press Esc (give it a second), and it will insert a # character on all other selected lines.

For the stripped-down version of vim shipped with debian/ubuntu by default, type : s/^/# in the third step instead (any remaining highlighting of the first character of each line can be removed with :nohl).

Here are two small screen recordings for visual reference.

Comment:

Uncomment:

Well, I'll try yet another code sample:

/**
 * Calculates the number of FULL days between to dates
 * @param startDate must be before endDate
 * @param endDate must be after startDate
 * @return number of day between startDate and endDate
 */
public static int daysBetween(Calendar startDate, Calendar endDate) {
    long start = startDate.getTimeInMillis();
    long end = endDate.getTimeInMillis();
    // It's only approximation due to several bugs (@see java.util.Date) and different precision in Calendar chosen
    // by user (ex. day is time-quantum).
    int presumedDays = (int) TimeUnit.MILLISECONDS.toDays(end - start);
    startDate.add(Calendar.DAY_OF_MONTH, presumedDays);
    // if we still didn't reach endDate try it with the step of one day
    if (startDate.before(endDate)) {
        startDate.add(Calendar.DAY_OF_MONTH, 1);
        ++presumedDays;
    }
    // if we crossed endDate then we must go back, because the boundary day haven't completed yet
    if (startDate.after(endDate)) {
        --presumedDays;
    }
    return presumedDays;
}

If you just want to get the minimum of a list, instead of sorting it and then getting the first element (O(N log N)), you can use do it in linear time using min:

<T extends Object & Comparable<? super T>> T min(Collection<? extends T> coll)

That looks gnarly at first, but looking at your previous questions, you have a List<String>. In short: min works on it.

For the long answer: all that super and extends stuff in the generic type constraints is what Josh Bloch calls the PECS principle (usually presented next to a picture of Arnold -- I'M NOT KIDDING!)

Producer Extends, Consumer Super

It essentially makes generics more powerful, since the constraints are more flexible while still preserving type safety (see: what is the difference between ‘super’ and ‘extends’ in Java Generics)

You can do it like this.

Models.TestModels obj = new Models.TestModels();
foreach (var item in obj.sp)
{
    Console.Write(item.Key);
    Console.Write(item.Value.name);
    Console.Write(item.Value.age);
}

The problem you most likely have right now is that the collection is private. If you add public to the beginning of this line

Dictionary<int, dynamic> sp = new Dictionary<int, dynamic> 

You should be able to access it from the function inside your controller.

Edit: Adding functional example of the full TestModels implementation.

Your TestModels class should look something like this.

public class TestModels
{
    public Dictionary<int, dynamic> sp = new Dictionary<int, dynamic>();

    public TestModels()
    {
        sp.Add(0, new {name="Test One", age=5});
        sp.Add(1, new {name="Test Two", age=7});
    }
}

You probably want to read up on the dynamic keyword as well.

You can user UIBezierPath Class for this:

And can draw as many lines as you want:

I have subclassed UIView :

    @interface MyLineDrawingView()
    {
       NSMutableArray *pathArray;
       NSMutableDictionary *dict_path;
       CGPoint startPoint, endPoint;
    }

       @property (nonatomic,retain)   UIBezierPath *myPath;
    @end

And initialized the pathArray and dictPAth objects which will be used for line drawing. I am writing the main portion of the code from my own project:

- (void)drawRect:(CGRect)rect
{

    for(NSDictionary *_pathDict in pathArray)
    {
        [((UIColor *)[_pathDict valueForKey:@"color"]) setStroke]; // this method will choose the color from the receiver color object (in this case this object is :strokeColor)
        [[_pathDict valueForKey:@"path"] strokeWithBlendMode:kCGBlendModeNormal alpha:1.0];
    }

    [[dict_path objectForKey:@"color"] setStroke]; // this method will choose the color from the receiver color object (in this case this object is :strokeColor)
    [[dict_path objectForKey:@"path"] strokeWithBlendMode:kCGBlendModeNormal alpha:1.0];

}

touchesBegin method :

UITouch *touch = [touches anyObject];
startPoint = [touch locationInView:self];
myPath=[[UIBezierPath alloc]init];
myPath.lineWidth = currentSliderValue*2;
dict_path = [[NSMutableDictionary alloc] init];

touchesMoved Method:

UITouch *touch = [touches anyObject];
endPoint = [touch locationInView:self];

 [myPath removeAllPoints];
        [dict_path removeAllObjects];// remove prev object in dict (this dict is used for current drawing, All past drawings are managed by pathArry)

    // actual drawing
    [myPath moveToPoint:startPoint];
    [myPath addLineToPoint:endPoint];

    [dict_path setValue:myPath forKey:@"path"];
    [dict_path setValue:strokeColor forKey:@"color"];

    //                NSDictionary *tempDict = [NSDictionary dictionaryWithDictionary:dict_path];
    //                [pathArray addObject:tempDict];
    //                [dict_path removeAllObjects];
    [self setNeedsDisplay];

touchesEnded Method:

        NSDictionary *tempDict = [NSDictionary dictionaryWithDictionary:dict_path];
        [pathArray addObject:tempDict];
        [dict_path removeAllObjects];
        [self setNeedsDisplay];

There is no inherent limit. The maximum number of threads is determined by the amount of physical resources available. See this article by Raymond Chen for specifics.

If you need to ask what the maximum number of threads is, you are probably doing something wrong.

[Update: Just out of interest: .NET Thread Pool default numbers of threads:

• 1023 in Framework 4.0 (32-bit environment)
• 32767 in Framework 4.0 (64-bit environment)
• 250 per core in Framework 3.5
• 25 per core in Framework 2.0

(These numbers may vary depending upon the hardware and OS)]

You need to use the square brackets notation to have values sent as an array:

<form method='post' id='userform' action='thisform.php'>
<tr>
    <td>Trouble Type</td>
    <td>
    <input type='checkbox' name='checkboxvar[]' value='Option One'>1<br>
    <input type='checkbox' name='checkboxvar[]' value='Option Two'>2<br>
    <input type='checkbox' name='checkboxvar[]' value='Option Three'>3
    </td>
</tr>
</table>
<input type='submit' class='buttons'>
</form>

Please note though, that only the values of only checked checkboxes will be sent.

An additional solution, for when you only have one of the :before / :after psuedo-elements available, is described here: :after-Checkbox using borders

It basically uses the border-bottom and border-right properties to create the checkbox, and then rotates the mirrored L using transform

Example

li {_x000D_
  position: relative; /* necessary for positioning the :after */_x000D_
}_x000D_
_x000D_
li.done {_x000D_
  list-style: none; /* remove normal bullet for done items */_x000D_
}_x000D_
_x000D_
li.done:after {_x000D_
  content: "";_x000D_
  background-color: transparent;_x000D_
  _x000D_
  /* position the checkbox */_x000D_
  position: absolute;_x000D_
  left: -16px;_x000D_
  top: 0px;_x000D_
_x000D_
  /* setting the checkbox */_x000D_
    /* short arm */_x000D_
  width: 5px;_x000D_
  border-bottom: 3px solid #4D7C2A;_x000D_
    /* long arm */_x000D_
  height: 11px;_x000D_
  border-right: 3px solid #4D7C2A;_x000D_
  _x000D_
  /* rotate the mirrored L to make it a checkbox */_x000D_
  transform: rotate(45deg);_x000D_
    -o-transform: rotate(45deg);_x000D_
    -ms-transform: rotate(45deg);_x000D_
    -webkit-transform: rotate(45deg);_x000D_
}

To do:_x000D_
<ul>_x000D_
  <li class="done">Great stuff</li>_x000D_
  <li class="done">Easy stuff</li>_x000D_
  <li>Difficult stuff</li>_x000D_
</ul>

You need to use the command echo $PATH to display the PATH variable or you can just execute set or env to display all of your environment variables.

By typing $PATH you tried to run your PATH variable contents as a command name.

Bash displayed the contents of your path any way. Based on your output the following directories will be searched in the following order:

/usr/local/share/npm/bin
/Library/Frameworks/Python.framework/Versions/2.7/bin
/usr/local/bin
/usr/local/sbin
~/bin
/Library/Frameworks/Python.framework/Versions/Current/bin
/usr/bin
/bin
/usr/sbin
/sbin
/usr/local/bin
/opt/X11/bin
/usr/local/git/bin

To me this list appears to be complete.

The full modern solution to your problem is purely CSS-based, but note that older browsers won't support it, in which cases you'd need to fallback to solutions such as the others have provided.

So in pure CSS:

-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
-o-user-select: none;
user-select: none;

However the mouse cursor will still change to a caret when over the element's text, so you add to that:

cursor: default;

Modern CSS is pretty elegant.

Got this working with .Net Core 3.1 as follows

1.Make sure you place the UseCors code between app.UseRouting(); and app.UseAuthentication();

        app.UseHttpsRedirection();

        app.UseRouting();
        app.UseCors("CorsApi");

        app.UseAuthentication();
        app.UseAuthorization();

        app.UseEndpoints(endpoints => {
            endpoints.MapControllers();
        });

2.Then place this code in the ConfigureServices method

services.AddCors(options =>
        {
            options.AddPolicy("CorsApi",
                builder => builder.WithOrigins("http://localhost:4200", "http://mywebsite.com")
            .AllowAnyHeader()
            .AllowAnyMethod());
        });

3.And above the base controller I placed this

[EnableCors("CorsApi")]
[Route("api/[controller]")]
[ApiController]
public class BaseController : ControllerBase

Now all my controllers will inherit from the BaseController and will have CORS enabled

This page comes first when you search on Google "remove last character jquery"

Although all previous answers are correct, somehow did not helped me to find what I wanted in a quick and easy way.

I feel something is missing. Apologies if i'm duplicating

jQuery

$('selector').each(function(){ 
  var text = $(this).html();
  text = text.substring(0, text.length-1);
  $(this).html(text);
});

or

$('selector').each(function(){ 
  var text = $(this).html();
  text = text.slice(0,-1);
  $(this).html(text);
})

I know this is an old thread but I thought I'd also make a contribution. My solution being similar to the post already marked as an answer. Some inline JavaScript checks does the trick.

ng-click="form.$invalid ? alert('Please correct the form') : saveTask(task)"

You are iterating through an undefined value, ie, com property of the Array's object, you should iterate through the array itself:

$.each(obj, function(key,value) {
   // here `value` refers to the objects 
});

Also note that jQuery intelligently tries to parse the sent JSON, probably you don't need to parse the response. If you are using $.ajax(), you can set the dataType to json which tells jQuery parse the JSON for you.

If it still doesn't work, check the browser's console for troubleshooting.

You can use contextual selectors and move the vertical-align there. This would work with the p tag, then. Take this snippet below as an example. Any p tags within your class will respect the vertical-align control:

#header_selecttxt {
    font-family: Arial;
    font-size: 12px;
    font-weight: bold;
}

#header_selecttxt p {
    vertical-align: text-top;
}

You could also keep the vertical-align in both sections so that other, inline elements would use this.

In Android, How to use a Cursor with a raw query in sqlite:

Cursor c = sampleDB.rawQuery("SELECT FirstName, Age FROM mytable " +
           "where Age > 10 LIMIT 5", null);

if (c != null ) {
    if  (c.moveToFirst()) {
        do {
            String firstName = c.getString(c.getColumnIndex("FirstName"));
            int age = c.getInt(c.getColumnIndex("Age"));
            results.add("" + firstName + ",Age: " + age);
        }while (c.moveToNext());
    }
}
c.close();

To add to Timo's answer LINQ can be used like this as well:

items = items.Select(i => {

     ...
     //perform some logic adding / updating.

     return i / return new Item();
     ...

     //To remove an item simply have logic to return null.

     //Then attach the Where to filter out nulls

     return null;
     ...


}).Where(i => i != null);

To read the values from keybord and insert element into array

# enter 0 when exit the insert element
echo "Enter the numbers"
read n
while [ $n -ne 0 ]
do
    x[$i]=`expr $n`
    read n
    let i++
done

#display the all array elements
echo "Array values ${x[@]}"
echo "Array values ${x[*]}"

# To find the array length
length=${#x[*]}
echo $length

Here are couple more free tools that can be used for this. Both work as SSMS addins.

ApexSQL Search – 100% free - searches both schema and data in tables. Has couple more useful options such as dependency tracking…

SSMS Tools pack – free for all versions except SQL 2012 – doesn’t look as advanced as previous one but has a lot of other cool features.

Swift 4

extension String {
    func SizeOf(_ font: UIFont) -> CGSize {
        return self.size(withAttributes: [NSAttributedStringKey.font: font])
    }
}

void Test(){
    var obj = new{a="aaa", b="bbb"};

    var val_a = obj.GetValObjDy("a"); //="aaa"
    var val_b = obj.GetValObjDy("b"); //="bbb"
}
//create in a static class
static public object GetValObjDy(this object obj, string propertyName)
{            
     return obj.GetType().GetProperty(propertyName).GetValue(obj, null);
}

The Get-ChildItem cmdlet has an -Exclude parameter that is tempting to use but it doesn't work for filtering out entire directories from what I can tell. Try something like this:

function GetFiles($path = $pwd, [string[]]$exclude) 
{ 
    foreach ($item in Get-ChildItem $path)
    {
        if ($exclude | Where {$item -like $_}) { continue }

        if (Test-Path $item.FullName -PathType Container) 
        {
            $item 
            GetFiles $item.FullName $exclude
        } 
        else 
        { 
            $item 
        }
    } 
}

Here is another non-regexp, non-super-awesome, non-super-optimized, however very easy to understand non-external-lib solution:

public static String trimStringByString(String text, String trimBy) {
    int beginIndex = 0;
    int endIndex = text.length();

    while (text.substring(beginIndex, endIndex).startsWith(trimBy)) {
        beginIndex += trimBy.length();
    } 

    while (text.substring(beginIndex, endIndex).endsWith(trimBy)) {
        endIndex -= trimBy.length();
    }

    return text.substring(beginIndex, endIndex);
}

Usage:

String trimmedString = trimStringByString(stringToTrim, "/");

Just change your default port 8080 to something else like below example

SQL> begin
 2   dbms_xdb.sethttpport('9090');
 3   end;
 4  /

You should first check if Session["emp_num"] exists in the session.

You can ask the session object if its indexer has the emp_num value or use string.IsNullOrEmpty(Session["emp_num"])

I think this should help.

import java.util.*;

public class StringSwap{

public static void main(String ar[]){
    Scanner in = new Scanner(System.in);
    String s = in.next();
    System.out.println(new StringBuffer(s.substring(0,2)).reverse().toString().concat(s.substring(2)));
  }
}

If you've installed 32-bit Office on a 64-bit machine, you may need to check for the presence of "SOFTWARE\Wow6432Node\Microsoft\Office\12.0\", substituting the 12.0 with the appropriate version. This is certainly the case for Office 2007 installed on 64-bit Windows 7.

Note that Office 2010 (== 14.0) is the first Office for which a 64-bit version exists.

You can invoke MySQL show status command

show status like 'Conn%';

For more info read Show open database connections

text function set or retrieve the value as plain text, otherwise, HTML function set or retrieve the value as HTML tags to change or modify that. If you want to just change the content then use text(). But if you need to change the markup then you have to use hmtl().

It's a dummy answer for me after six years, Don't mind.

Building of off an earlier example, I think there is a cleaner way of doing this. Create an index.html file in your project and using Stephen's code from above, just convert it into an HTML doc.

<!DOCTYPE html>
<html>
  <base target="_top">
  <script>
    function onSuccess(url) {
      var a = document.createElement("a"); 
      a.href = url;
      a.target = "_blank";
      window.close = function () {
        window.setTimeout(function() {
          google.script.host.close();
        }, 9);
      };
      if (document.createEvent) {
        var event = document.createEvent("MouseEvents");
        if (navigator.userAgent.toLowerCase().indexOf("firefox") > -1) {
          window.document.body.append(a);
        }                        
        event.initEvent("click", true, true); 
        a.dispatchEvent(event);
      } else {
        a.click();
      }
      close();
    }

    function onFailure(url) {
      var div = document.getElementById('failureContent');
      var link = '<a href="' + url + '" target="_blank">Process</a>';
      div.innerHtml = "Failure to open automatically: " + link;
    }

    google.script.run.withSuccessHandler(onSuccess).withFailureHandler(onFailure).getUrl();
  </script>
  <body>
    <div id="failureContent"></div>
  </body>
  <script>
    google.script.host.setHeight(40);
    google.script.host.setWidth(410);
  </script>
</html>

Then, in your Code.gs script, you can have something like the following,

function getUrl() {
  return 'http://whatever.com';
}

function openUrl() {
  var html = HtmlService.createHtmlOutputFromFile("index");
  html.setWidth(90).setHeight(1);
  var ui = SpreadsheetApp.getUi().showModalDialog(html, "Opening ..." );
}

I use the reflections in the toString() implementation of my preference class to see the class members and values (simple and quick debugging).

The simplified code I'm using:

@Override
public String toString() {
    StringBuilder sb = new StringBuilder();

    Class<?> thisClass = null;
    try {
        thisClass = Class.forName(this.getClass().getName());

        Field[] aClassFields = thisClass.getDeclaredFields();
        sb.append(this.getClass().getSimpleName() + " [ ");
        for(Field f : aClassFields){
            String fName = f.getName();
            sb.append("(" + f.getType() + ") " + fName + " = " + f.get(this) + ", ");
        }
        sb.append("]");
    } catch (Exception e) {
        e.printStackTrace();
    }

    return sb.toString();
}

I hope that it will help someone, because I also have searched.

Based on SourceSimian's response; this worked on Windows domain user accounts. Note that the Username does not have domain included,

task setHttpProxyFromEnv {
    def map = ['HTTP_PROXY': 'http', 'HTTPS_PROXY': 'https']
    for (e in System.getenv()) {
        def key = e.key.toUpperCase()
        if (key in map) {
            def base = map[key]
            def url = e.value.toURL()
            println " - systemProp.${base}.proxy=${url.host}:${url.port}"
            System.setProperty("${base}.proxyHost", url.host.toString())
            System.setProperty("${base}.proxyPort", url.port.toString())
            System.setProperty("${base}.proxyUser", "Username")
            System.setProperty("${base}.proxyPassword", "Password")
        }
    }
}
build.dependsOn setHttpProxyFromEnv

In CMD, type:

pip freeze

And it will show you a list of all the modules installed including the version number.

Output:

aiohttp==1.1.4
async-timeout==1.1.0
cx-Freeze==4.3.4
Django==1.9.2
django-allauth==0.24.1
django-cors-headers==1.2.2
django-crispy-forms==1.6.0
django-robots==2.0
djangorestframework==3.3.2
easygui==0.98.0
future==0.16.0
httpie==0.9.6
matplotlib==1.5.3
multidict==2.1.2
numpy==1.11.2
oauthlib==1.0.3
pandas==0.19.1
pefile==2016.3.28
pygame==1.9.2b1
Pygments==2.1.3
PyInstaller==3.2
pyparsing==2.1.10
pypiwin32==219
PyQt5==5.7
pytz==2016.7
requests==2.9.1
requests-oauthlib==0.6
six==1.10.0
sympy==1.0
virtualenv==15.0.3
xlrd==1.0.0
yarl==0.7.0

The accepted answer is great, but if you need to interact programmatically with PostgreSQL version maybe it's better to do:

SELECT current_setting('server_version_num'); -- Returns 90603 (9.6.3)
-- Or using SHOW command:
SHOW server_version_num; -- Returns 90603 too

It will return server version as an integer. This is how server version is tested in PostgreSQL source, e.g.:

/*
 * This is a C code from pg_dump source.
 * It will do something if PostgreSQL remote version (server) is lower than 9.1.0
 */
if (fout->remoteVersion < 90100)
    /*
     * Do something...
     */  

More info here and here.

My autocomplete also didn't work because Visual Studio Tools for Unity wasn't installed. So, after you install that, delete the auto generated Visual Studio files. Others said that you open file again and the problem is solved but it's not.

The trick is: instead of normally double-clicking the file, you need to open the C# file from Unity by right click and then "Open C# Project".

As mentioned in a comment above, you can have expressions within the template strings/literals. Example:

const one = 1;_x000D_
const two = 2;_x000D_
const result = `One add two is ${one + two}`;_x000D_
console.log(result); // output: One add two is 3

For me it was a big difference when I faced this scenario (here my story:)

<?xml version="1.0" encoding="UTF-8"?>
<sentence id="S1.6">When U937 cells were infected with HIV-1, 
        
    <xcope id="X1.6.3">
        <cue ref="X1.6.3" type="negation">no</cue> 
                        
                        induction of NF-KB factor was detected
        
    </xcope>
                    
, whereas high level of progeny virions was produced, 
        
    <xcope id="X1.6.2">
        <cue ref="X1.6.2" type="speculation">suggesting</cue> that this factor was 
        <xcope id="X1.6.1">
            <cue ref="X1.6.1" type="negation">not</cue> required for viral replication
        </xcope>
    </xcope>.

</sentence>

I needed to extract text between tags and aggregate (by concat) the text including in innner tags.

/node() did the job, while /text() made half job

/text() only returned text not included in inner tags, because inner tags are not "text nodes". You may think, "just extract text included in the inner tags in an additional xpath", however, it becomes challenging to sort the text in this original order because you dont know where to place the aggregated text from the inner tags!because you dont know where to place the aggregated text from the inner nodes.

1. When U937 cells were infected with HIV-1,
2. no induction of NF-KB factor was detected
3. , whereas high level of progeny virions was produced,
4. suggesting that this factor was not required for viral replication
5. .

Finally, /node() did exactly what I wanted, because it gets the text from inner tags too.

Find a better use for myself: I usually test if a variant is empty, and all of the above methods fail with the test. I found that you can actually set a variant to empty:

Dim aTable As Variant
If IsEmpty(aTable) Then
    'This is true
End If
ReDim aTable(2)
If IsEmpty(aTable) Then
    'This is False
End If
ReDim aTable(2)
aTable = Empty
If IsEmpty(aTable) Then
    'This is true
End If
ReDim aTable(2)
Erase aTable
If IsEmpty(aTable) Then
    'This is False
End If

this way i get the behaviour i want

Well, you essentially create a JDialog, add your text components and make it visible. It might help if you narrow down which specific bit you're having trouble with.

Python doesn't subscribe to the idea that exceptions should only be used for exceptional cases, in fact the idiom is 'ask for forgiveness, not permission'. This means that using exceptions as a routine part of your flow control is perfectly acceptable, and in fact, encouraged.

This is generally a good thing, as working this way helps avoid some issues (as an obvious example, race conditions are often avoided), and it tends to make code a little more readable.

Imagine you have a situation where you take some user input which needs to be processed, but have a default which is already processed. The try: ... except: ... else: ... structure makes for very readable code:

try:
   raw_value = int(input())
except ValueError:
   value = some_processed_value
else: # no error occured
   value = process_value(raw_value)

Compare to how it might work in other languages:

raw_value = input()
if valid_number(raw_value):
    value = process_value(int(raw_value))
else:
    value = some_processed_value

Note the advantages. There is no need to check the value is valid and parse it separately, they are done once. The code also follows a more logical progression, the main code path is first, followed by 'if it doesn't work, do this'.

The example is naturally a little contrived, but it shows there are cases for this structure.

The built-in process module has a method memoryUsage that offers insight in the memory usage of the current Node.js process. Here is an example from in Node v0.12.2 on a 64-bit system:

$ node --expose-gc
> process.memoryUsage();  // Initial usage
{ rss: 19853312, heapTotal: 9751808, heapUsed: 4535648 }
> gc();                   // Force a GC for the baseline.
undefined
> process.memoryUsage();  // Baseline memory usage.
{ rss: 22269952, heapTotal: 11803648, heapUsed: 4530208 }
> var a = new Array(1e7); // Allocate memory for 10m items in an array
undefined
> process.memoryUsage();  // Memory after allocating so many items
{ rss: 102535168, heapTotal: 91823104, heapUsed: 85246576 }
> a = null;               // Allow the array to be garbage-collected
null
> gc();                   // Force GC (requires node --expose-gc)
undefined
> process.memoryUsage();  // Memory usage after GC
{ rss: 23293952, heapTotal: 11803648, heapUsed: 4528072 }
> process.memoryUsage();  // Memory usage after idling
{ rss: 23293952, heapTotal: 11803648, heapUsed: 4753376 }

In this simple example, you can see that allocating an array of 10M elements consumers approximately 80MB (take a look at heapUsed).
If you look at V8's source code (Array::New, Heap::AllocateRawFixedArray, FixedArray::SizeFor), then you'll see that the memory used by an array is a fixed value plus the length multiplied by the size of a pointer. The latter is 8 bytes on a 64-bit system, which confirms that observed memory difference of 8 x 10 = 80MB makes sense.

^[0-9]{1,2}[:.,-]?po$

Add any other allowable non-alphanumeric characters to the middle brackets to allow them to be parsed as well.

I had to change this rows:

$cfg['Servers'][$i]['pma__bookmarktable'] = 'pma__bookmark';
$cfg['Servers'][$i]['pma__relation'] = 'pma__relation';
$cfg['Servers'][$i]['pma__table_info'] = 'pma__table_info';
$cfg['Servers'][$i]['pma__table_coords'] = 'pma__table_coords';
$cfg['Servers'][$i]['pma__pdf_pages'] = 'pma__pdf_pages';
$cfg['Servers'][$i]['pma__column_info'] = 'pma__column_info';
$cfg['Servers'][$i]['pma__history'] = 'pma__history';
$cfg['Servers'][$i]['pma__table_uiprefs'] = 'pma__table_uiprefs';
$cfg['Servers'][$i]['pma__designer_coords'] = 'pma__designer_coords';
$cfg['Servers'][$i]['pma__tracking'] = 'pma__tracking';
$cfg['Servers'][$i]['pma__userconfig'] = 'pma__userconfig';
$cfg['Servers'][$i]['pma__recent'] = 'pma__recent';
$cfg['Servers'][$i]['pma__table_uiprefs'] = 'pma__table_uiprefs';

add: "pma__" to ['bookmarktable'] and "_" to 'pma_bookmark'

Firstly, the level name to use is FINE, not DEBUG. Let's assume for a minute that DEBUG is actually valid, as it makes the following explanation make a bit more sense...

In the Handler specific properties section, you're setting the logging level for those handlers to DEBUG. This means the handlers will handle any log messages with the DEBUG level or higher. It doesn't necessarily mean any DEBUG messages are actually getting passed to the handlers.

In the Facility specific properties section, you're setting the logging level for a few explicitly-named loggers to DEBUG. For those loggers, anything at level DEBUG or above will get passed to the handlers.

The default logging level is INFO, and apart from the loggers mentioned in the Facility specific properties section, all loggers will have that level.

If you want to see all FINE messages, add this:

.level = FINE

However, this will generate a vast quantity of log messages. It's probably more useful to set the logging level for your code:

your.package.level = FINE

See the Tomcat 6/Tomcat 7 logging documentation for more information. The example logging.properties file shown there uses FINE instead of DEBUG:

...
1catalina.org.apache.juli.FileHandler.level = FINE
...

and also gives you examples of setting additional logging levels:

# For example, set the com.xyz.foo logger to only log SEVERE
# messages:
#org.apache.catalina.startup.ContextConfig.level = FINE
#org.apache.catalina.startup.HostConfig.level = FINE
#org.apache.catalina.session.ManagerBase.level = FINE

Use the ViewPager.onPageChangeListener:

viewPager.addOnPageChangeListener(new OnPageChangeListener() {
    public void onPageScrollStateChanged(int state) {}
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {}

    public void onPageSelected(int position) {
        // Check if this is the page you want.
    }
});

_{In general, to set a video's FPS to 24, almost always you can do:}

With Audio and without re-encoding:

# Extract video stream
ffmpeg -y -i input_video.mp4 -c copy -f h264 output_raw_bitstream.h264
# Extract audio stream
ffmpeg -y -i input_video.mp4 -vn -acodec copy output_audio.aac
# Remux with new FPS 
ffmpeg -y -r 24 -i output_raw_bitstream.h264 -i output-audio.aac -c copy output.mp4

If you want to find the video format (H264 in this case), you can use FFprobe, like this

ffprobe -loglevel error -select_streams v -show_entries stream=codec_name -of default=nw=1:nk=1 input_video.mp4

which will output:

h264

Read more in How can I analyze file and detect if the file is in H.264 video format?

With re-encoding:

ffmpeg -y -i input_video.mp4 -vf -r 24 output.mp4

Copy the CSV file to /tmp

For me this solved the issue.

var voyageId = new Array(); 
$("input[name='voyageId[]']:checked:enabled").each(function () {
   voyageId.push($(this).val());
});      

I may have a workaround.

Was having the same issue, where I am loading lots of items (via the file system) into a ListView via an AsyncTask. Had the onPreExecute() firing up a ProgressDialog, and then both onPostExecute() and onCancelled() (called when the task is cancelled explicitly via AsyncTask.cancel()) closing it via .cancel().

Got the same "java.lang.IllegalArgumentException: View not attached to window manager" error when I was killing the dialog in the onCancelled() method of the AsyncTask (I'd seen this done in the excellent Shelves app).

The workaround was to create a public field in the AsyncTask that contains the ProgressDialog:

public ProgressDialog mDialog;

Then, in onDestroy() when I cancel my AsyncTask, I can also kill the associated dialog via:

AsyncTask.mDialog.cancel();

Calling AsyncTask.cancel() DOES trigger onCancelled() in the AsyncTask, but for some reason by the time that method is called, the View has already been destroyed and thus cancelling the dialog is failing.

A bit more low-tech than leo's solution:

for i in */.git; do ( echo $i; cd $i/..; git pull; ); done

This will update all Git repositories in your working directory. No need to explicitly list their names ("cms", "admin", "chart"). The "cd" command only affects a subshell (spawned using the parenthesis).

The problem is, you need a xsd schema for packages.config.

This is how you can create a schema (I found it here):

Open your Config file -> XML -> Create Schema

This would create a packages.xsd for you, and opens it in Visual Studio:

In my case, packages.xsd was created under this path:

C:\Users\MyUserName\AppData\Local\Temp

Now I don't want to reference the packages.xsd from a Temp folder, but I want it to be added to my solution and added to source control, so other users can get it... so I copied packages.xsd and pasted it into my solution folder. Then I added the file to my solution:

1. Copy packages.xsd in the same folder as your solution

2. From VS, right click on solution -> Add -> Existing Item... and then add packages.xsd

So, now we have created packages.xsd and added it to the Solution. All we need to do is to tell the config file to use this schema.

Open the config file, then from the top menu select:

XML -> Schemas...

Add your packages.xsd, and select Use this schema (see below)

You simply forgot to supply an argument to -i. Just change -i to -i ''.

Of course that means you don't want your files to be backed up; otherwise supply your extension of choice, like -i .bak.

You need to set the thumbnail class to position relative then the post-content to absolute.

Check this fiddle

.post-content {
    top:0;
    left:0;
    position: absolute;
}

.thumbnail{
    position:relative;

}

Giving it top and left 0 will make it appear in the top left corner.

"Allocation Failure" is cause of GC to kick is not correct. It is an outcome of GC operation.

GC kicks in when there is no space to allocate( depending on region minor or major GC is performed). Once GC is performed if space is freed good enough, but if there is not enough size it fails. Allocation Failure is one such failure. Below document have good explanation https://docs.oracle.com/javase/8/docs/technotes/guides/vm/gctuning/g1_gc.html

FileUtils is class from apache org.apache.commons.io package, you need to download org.apache.commons.io.jar and then configure that jar file in your class path.

via Reflection

 var property = object.GetType().GetProperty("YourProperty")
 property.SetValue(object,some_value,null);

Similar is for methods

Probably invalid syntax in your onChange event, I avoid using like this (within the html) as I think it is messy and it is hard enough keeping JavaScript tidy at the best of times.

I would rather register the event on the document ready event in javascript. You will also definitely want to use keyup event too if you want the validation as the user is typing:

$(document).ready(function () {
   $("#txtConfirmPassword").keyup(checkPasswordMatch);
});

Here is a working example

Personally I would prefer to do the check when either password field changes, that way if they re-type the original password then you still get the same validation check:

$(document).ready(function () {
   $("#txtNewPassword, #txtConfirmPassword").keyup(checkPasswordMatch);
});

Here is a working example

I'm not sure if you're going to get any huge gains for reasons Jon Skeet pointed out. However, you could try and benchmark the TypeConvert.ConvertTo method and see how it compares to using your current method.

ImageConverter converter = new ImageConverter();
byte[] imgArray = (byte[])converter.ConvertTo(imageIn, typeof(byte[]));

In case anyone else runs into this problem, I was able to get it working like this:

var path = require('path');
// ...
resolve: {
  root: [path.resolve(__dirname, 'src'), path.resolve(__dirname, 'node_modules')],
  extensions: ['', '.js']
};

where my directory structure is:

.
+-- dist
+-- node_modules
+-- package.json
+-- README.md
+-- src
¦   +-- components
¦   +-- index.html
¦   +-- main.js
¦   +-- styles
+-- webpack.config.js

Then from anywhere in the src directory I can call:

import MyComponent from 'components/MyComponent';

You can include the script file directly in your page/master page, etc using:

 <script type="text/javascript" src="/scripts/jquery.min.js"></script> 

Us use a Content Delivery network like Google or Microsoft:

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script> 

or:

<script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.js" type="text/javascript"></script>     

Java has no map literal, so there's no nice way to do exactly what you're asking.

If you need that type of syntax, consider some Groovy, which is Java-compatible and lets you do:

def map = [name:"Gromit", likes:"cheese", id:1234]

This d = t.getElementsByTagName("tr") and this r = d.getElementsByTagName("td") are both arrays. The getElementsByTagName returns an collection of elements even if there's just one found on your match.

So you have to use like this:

var t = document.getElementById("table"), // This have to be the ID of your table, not the tag
    d = t.getElementsByTagName("tr")[0],
    r = d.getElementsByTagName("td")[0];

Place the index of the array as you want to access the objects.

Note that getElementById as the name says just get the element with matched id, so your table have to be like <table id='table'> and getElementsByTagName gets by the tag.

EDIT:

Well, continuing this post, I think you can do this:

var t = document.getElementById("table");
var trs = t.getElementsByTagName("tr");
var tds = null;

for (var i=0; i<trs.length; i++)
{
    tds = trs[i].getElementsByTagName("td");
    for (var n=0; n<tds.length;n++)
    {
        tds[n].onclick=function() { alert(this.innerHTML); }
    }
}

Try it!

Use a link and style it like a button:

<a href="#page2" class="ui-btn ui-shadow ui-corner-all">Click this button</a>

ReSharper (not-free)

Just create a single view Model with all the needed information in it, normaly what I do is create a model for every view so I can be specific on every view, either that or make a parent model and inherit it. OR make a model which includes both the views.

Personally I would just add them into one model but thats the way I do it:

public class xViewModel
{
    public int PersonID { get; set; }
    public string PersonName { get; set; }
    public int OrderID { get; set; }
    public int TotalSum { get; set; }
}

@model project.Models.Home.xViewModel

@using(Html.BeginForm())
{
    @Html.EditorFor(x => x.PersonID)
    @Html.EditorFor(x => x.PersonName)
    @Html.EditorFor(x => x.OrderID)
    @Html.EditorFor(x => x.TotalSum)
}

Sometimes it's asking the question that makes the answer jump out. The methods and extra arguments are listed on the ggplot2 wiki stat_smooth page.

Which is alluded to on the geom_smooth() page with:

"See stat_smooth for examples of using built in model fitting if you need some more flexible, this example shows you how to plot the fits from any model of your choosing".

It's not the first time I've seen arguments in examples for ggplot graphs that aren't specifically in the function. It does make it tough to work out the scope of each function, or maybe I am yet to stumble upon a magic explicit list that says what will and will not work within each function.

Convert cell to Markdown and use HTML5 <details> tag as in the example by joyrexus:

https://gist.github.com/joyrexus/16041f2426450e73f5df9391f7f7ae5f

## collapsible markdown?

<details><summary>CLICK ME</summary>
<p>

#### yes, even hidden code blocks!

```python
print("hello world!")
```

</p>
</details>

Changing the current directory is not the way to deal with finding modules in Python.

Rather, see the docs for The Module Search Path for how Python finds which module to import.

Here is a relevant bit from Standard Modules section:

The variable sys.path is a list of strings that determines the interpreter’s search path for modules. It is initialized to a default path taken from the environment variable PYTHONPATH, or from a built-in default if PYTHONPATH is not set. You can modify it using standard list operations:

>>> import sys
>>> sys.path.append('/ufs/guido/lib/python')

In answer your original question about getting and setting the current directory:

>>> help(os.getcwd)

getcwd(...)
    getcwd() -> path

    Return a string representing the current working directory.

>>> help(os.chdir)

chdir(...)
    chdir(path)

    Change the current working directory to the specified path.

This should do the trick!

// convert object => json
$json = json_encode($myObject);

// convert json => object
$obj = json_decode($json);

Here's an example

$foo = new StdClass();
$foo->hello = "world";
$foo->bar = "baz";

$json = json_encode($foo);
echo $json;
//=> {"hello":"world","bar":"baz"}

print_r(json_decode($json));
// stdClass Object
// (
//   [hello] => world
//   [bar] => baz
// )

If you want the output as an Array instead of an Object, pass true to json_decode

print_r(json_decode($json, true));
// Array
// (
//   [hello] => world
//   [bar] => baz
// )    

More about json_encode()

See also: json_decode()

Obviously you can use maxLength in xml or InputFilter.LengthFilter as answered above. But for me in some cases, it was not enough. I created a class for more flexible settings of EditText: https://github.com/devapro/NumberWatcher It is implementation only for numbers input, but you can change it for any of the types.

For Rails 5.2.4.1, I had to

app.extend app._routes.named_routes.path_helpers_module
app.whatever_path

If you wish to use jQuery CDN other than Google hosted jQuery library, you might consider using this and ensures uses the latest version of jQuery:

<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>

This solution is inspired by @desw's one.

If your input names are in "form style", you will lose array index association with your chekbox values as soon as one chekbox is checked, incrementing this "dissociation" by one unit each time a chekbox is checked. This can be the case of a form for inserting something like employees composed by some fields, for instance:

<input type="text" name="employee[]" />
<input type="hidden" name="isSingle[] value="no" />
<input type="checkbox" name="isSingle[] value="yes" />

In case you insert three employees at once and the first and the second ones are single, you will end up with a 5-element isSingle array, so you won't be able to iterate at once through the three arrays in order to, for instance, insert employees in a database.

You can overcome this with some easy array postprocessing. I'm using PHP at the server side and I did this:

$j = 0;
$areSingles = $_POST['isSingle'];
foreach($areSingles as $isSingle){
  if($isSingle=='yes'){
    unset($areSingles[$j-1]);
  }
  $j++;
}
$areSingles = array_values($areSingles);

If you just want to check the type, you can use jQuery's .is() function,

Like in my case I used below,

if($("#id").is("select")) {
 alert('Select'); 
else if($("#id").is("input")) {
 alert("input");
}

Implementation in Go

Encode part (server -> browser)

func encode (message string) (result []byte) {
  rawBytes := []byte(message)
  var idxData int

  length := byte(len(rawBytes))
  if len(rawBytes) <= 125 { //one byte to store data length
    result = make([]byte, len(rawBytes) + 2)
    result[1] = length
    idxData = 2
  } else if len(rawBytes) >= 126 && len(rawBytes) <= 65535 { //two bytes to store data length
    result = make([]byte, len(rawBytes) + 4)
    result[1] = 126 //extra storage needed
    result[2] = ( length >> 8 ) & 255
    result[3] = ( length      ) & 255
    idxData = 4
  } else {
    result = make([]byte, len(rawBytes) + 10)
    result[1] = 127
    result[2] = ( length >> 56 ) & 255
    result[3] = ( length >> 48 ) & 255
    result[4] = ( length >> 40 ) & 255
    result[5] = ( length >> 32 ) & 255
    result[6] = ( length >> 24 ) & 255
    result[7] = ( length >> 16 ) & 255
    result[8] = ( length >>  8 ) & 255
    result[9] = ( length       ) & 255
    idxData = 10
  }

  result[0] = 129 //only text is supported

  // put raw data at the correct index
  for i, b := range rawBytes {
    result[idxData + i] = b
  }
  return
}

Decode part (browser -> server)

func decode (rawBytes []byte) string {
  var idxMask int
  if rawBytes[1] == 126 {
    idxMask = 4
  } else if rawBytes[1] == 127 {
    idxMask = 10
  } else {
    idxMask = 2
  }

  masks := rawBytes[idxMask:idxMask + 4]
  data := rawBytes[idxMask + 4:len(rawBytes)]
  decoded := make([]byte, len(rawBytes) - idxMask + 4)

  for i, b := range data {
    decoded[i] = b ^ masks[i % 4]
  }
  return string(decoded)
}

There is no need to have two functions within one element, you need just one that calls the other two!

HTML

<a href="#" onclick="my_func()" >click</a>

JavaScript

function my_func() {
    my_func_1();
    my_func_2();
}

Have same error from time to time (when I set install location to "prefer external" in manifest). Just clean and rebuild project. Works for me.

There is a nice gem especially for uploading files : carrierwave. If the wiki does not help , there is a nice RailsCast about the best way to use it . Summarizing , there is a field type file in Rails forms , which invokes the file upload dialog. You can use it , but the 'magic' is done by carrierwave gem .

I don't know what do you mean with "how to write to a file" , but I hope this is a nice start.

To open the Eye Dropper simply:

1. Open DevTools F12
2. Go to Elements tab
3. Under Styles side bar click on any color preview box

Its main functionality is to inspect pixel color values by clicking them though with its new features you can also see your page's existing colors palette or material design palette by clicking on the two arrows icon at the bottom. It can get quite handy when designing your page.

In the Windows Powershell console, type

[System.IO.Directory]::GetFiles("\\.\\pipe\\")

get-childitem \\.\pipe\

This returns a list of objects. If you want the name only:

(get-childitem \\.\pipe\).FullName

(The second example \\.\pipe\ does not work in Powershell 7, but the first example does)

ES6 one-line approach based on Array.prototype reduce and push methods:

const doChunk = (list, size) => list.reduce((r, v) =>
  (!r.length || r[r.length - 1].length === size ?
    r.push([v]) : r[r.length - 1].push(v)) && r
, []);

console.log(doChunk([0,1,2,3,4,5,6,7,8,9,10,11,12], 5));
// [[0, 1, 2, 3, 4], [5, 6, 7, 8, 9], [10, 11, 12]]

Using http.createServer is very low-level and really not useful for creating web applications as-is.

A good framework to use on top of it is Express, and I would seriously suggest using it. You can install it using npm install express.

When you have, you can create a basic application to handle your form:

var express = require('express');
var bodyParser = require('body-parser');
var app     = express();

//Note that in version 4 of express, express.bodyParser() was
//deprecated in favor of a separate 'body-parser' module.
app.use(bodyParser.urlencoded({ extended: true })); 

//app.use(express.bodyParser());

app.post('/myaction', function(req, res) {
  res.send('You sent the name "' + req.body.name + '".');
});

app.listen(8080, function() {
  console.log('Server running at http://127.0.0.1:8080/');
});

You can make your form point to it using:

<form action="http://127.0.0.1:8080/myaction" method="post">

The reason you can't run Node on port 80 is because there's already a process running on that port (which is serving your index.html). You could use Express to also serve static content, like index.html, using the express.static middleware.

There is an interesting alternative to the proposed solutions, that works with a single Dockerfile, require only a single call to docker build per conditional build and avoids bash.

Solution:

The following Dockerfile solves that problem. Copy-paste it and try it yourself.

ARG my_arg

FROM centos:7 AS base
RUN echo "do stuff with the centos image"

FROM base AS branch-version-1
RUN echo "this is the stage that sets VAR=TRUE"
ENV VAR=TRUE

FROM base AS branch-version-2
RUN echo "this is the stage that sets VAR=FALSE"
ENV VAR=FALSE

FROM branch-version-${my_arg} AS final
RUN echo "VAR is equal to ${VAR}"

Explanation of Dockerfile:

We first get a base image (centos:7 in your case) and put it into its own stage. The base stage should contain things that you want to do before the condition. After that, we have two more stages, representing the branches of our condition: branch-version-1 and branch-version-2. We build both of them. The final stage than chooses one of these stages, based on my_arg. Conditional Dockerfile. There you go.

Output when running:

(I abbreviated this a little...)

my_arg==2

docker build --build-arg my_arg=2 .
Step 1/12 : ARG my_arg
Step 2/12 : ARG ENV
Step 3/12 : FROM centos:7 AS base
Step 4/12 : RUN echo "do stuff with the centos image"
do stuff with the centos image
Step 5/12 : FROM base AS branch-version-1
Step 6/12 : RUN echo "this is the stage that sets VAR=TRUE"
this is the stage that sets VAR=TRUE
Step 7/12 : ENV VAR=TRUE
Step 8/12 : FROM base AS branch-version-2
Step 9/12 : RUN echo "this is the stage that sets VAR=FALSE"
this is the stage that sets VAR=FALSE
Step 10/12 : ENV VAR=FALSE
Step 11/12 : FROM branch-version-${my_arg}
Step 12/12 : RUN echo "VAR is equal to ${VAR}"
VAR is equal to FALSE

my_arg==1

docker build --build-arg my_arg=1 .
...
Step 11/12 : FROM branch-version-${my_arg}
Step 12/12 : RUN echo "VAR is equal to ${VAR}"
VAR is equal to TRUE

Thanks to Tõnis for this amazing idea!

A bit 'lazy' way to do this is to use startswith- it is easier to understand this rather regexps. However regexps might work faster, I haven't measured.

>>> papa = "papa is a good man"
>>> app = "app is important"
>>> strip_word = 'papa'
>>> papa[len(strip_word):] if papa.startswith(strip_word) else papa
' is a good man'
>>> app[len(strip_word):] if app.startswith(strip_word) else app
'app is important'

Also note that you can also "protect" a block from being formatted with @formatter:off and @formatter:on, avoiding a reformat on a comment for example, like in:

// Master dataframe
Dataset<Row> countyStateDf = df
    .withColumn(
        "countyState",
        split(df.col("label"), ", "));

// I could split the column in one operation if I wanted:
// @formatter:off
//    Dataset<Row> countyState0Df = df
//        .withColumn(
//            "state",
//            split(df.col("label"), ", ").getItem(1))
//        .withColumn(
//            "county",
//            split(df.col("label"), ", ").getItem(0));
// @formatter:on

countyStateDf.sample(.01).show(5, false);

Better and quicker approach without any software to download.

• Open command prompt and follow steps mentioned below
• cd path/from/where/file/istobe/copied
• ftp (serverip or name)
• It will ask for Server(AIX) User: (username)
• It will ask for password : (password)
• cd path/where/file/istobe/copied
• pwd (to check current path)
• mput (directory name which is to be copied)

This should work.

OCR which stands for Optical Character Recognition is a computer vision technique used to identify the different types of handwritten digits that are used in common mathematics. To perform OCR in OpenCV we will use the KNN algorithm which detects the nearest k neighbors of a particular data point and then classifies that data point based on the class type detected for n neighbors.

Data Used

This data contains 5000 handwritten digits where there are 500 digits for every type of digit. Each digit is of 20×20 pixel dimensions. We will split the data such that 250 digits are for training and 250 digits are for testing for every class.

Below is the implementation.

Output

91.64

Well, I decided to workout myself on my question to solve the above problem. What I wanted is to implement a simple OCR using KNearest or SVM features in OpenCV. And below is what I did and how. (it is just for learning how to use KNearest for simple OCR purposes).

1) My first question was about letter_recognition.data file that comes with OpenCV samples. I wanted to know what is inside that file.

It contains a letter, along with 16 features of that letter.

And this SOF helped me to find it. These 16 features are explained in the paper Letter Recognition Using Holland-Style Adaptive Classifiers. (Although I didn't understand some of the features at the end)

2) Since I knew, without understanding all those features, it is difficult to do that method. I tried some other papers, but all were a little difficult for a beginner.

So I just decided to take all the pixel values as my features. (I was not worried about accuracy or performance, I just wanted it to work, at least with the least accuracy)

I took the below image for my training data:

(I know the amount of training data is less. But, since all letters are of the same font and size, I decided to try on this).

To prepare the data for training, I made a small code in OpenCV. It does the following things:

1. It loads the image.
2. Selects the digits (obviously by contour finding and applying constraints on area and height of letters to avoid false detections).
3. Draws the bounding rectangle around one letter and wait for key press manually. This time we press the digit key ourselves corresponding to the letter in the box.
4. Once the corresponding digit key is pressed, it resizes this box to 10x10 and saves all 100 pixel values in an array (here, samples) and corresponding manually entered digit in another array(here, responses).
5. Then save both the arrays in separate .txt files.

At the end of the manual classification of digits, all the digits in the training data (train.png) are labeled manually by ourselves, image will look like below:

Below is the code I used for the above purpose (of course, not so clean):

import sys

import numpy as np
import cv2

im = cv2.imread('pitrain.png')
im3 = im.copy()

gray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)
blur = cv2.GaussianBlur(gray,(5,5),0)
thresh = cv2.adaptiveThreshold(blur,255,1,1,11,2)

#################      Now finding Contours         ###################

contours,hierarchy = cv2.findContours(thresh,cv2.RETR_LIST,cv2.CHAIN_APPROX_SIMPLE)

samples =  np.empty((0,100))
responses = []
keys = [i for i in range(48,58)]

for cnt in contours:
    if cv2.contourArea(cnt)>50:
        [x,y,w,h] = cv2.boundingRect(cnt)
        
        if  h>28:
            cv2.rectangle(im,(x,y),(x+w,y+h),(0,0,255),2)
            roi = thresh[y:y+h,x:x+w]
            roismall = cv2.resize(roi,(10,10))
            cv2.imshow('norm',im)
            key = cv2.waitKey(0)

            if key == 27:  # (escape to quit)
                sys.exit()
            elif key in keys:
                responses.append(int(chr(key)))
                sample = roismall.reshape((1,100))
                samples = np.append(samples,sample,0)

responses = np.array(responses,np.float32)
responses = responses.reshape((responses.size,1))
print "training complete"

np.savetxt('generalsamples.data',samples)
np.savetxt('generalresponses.data',responses)

Now we enter in to training and testing part.

For the testing part, I used the below image, which has the same type of letters I used for the training phase.

For training we do as follows:

1. Load the .txt files we already saved earlier
2. create an instance of the classifier we are using (it is KNearest in this case)
3. Then we use KNearest.train function to train the data

For testing purposes, we do as follows:

1. We load the image used for testing
2. process the image as earlier and extract each digit using contour methods
3. Draw a bounding box for it, then resize it to 10x10, and store its pixel values in an array as done earlier.
4. Then we use KNearest.find_nearest() function to find the nearest item to the one we gave. ( If lucky, it recognizes the correct digit.)

I included last two steps (training and testing) in single code below:

import cv2
import numpy as np

#######   training part    ############### 
samples = np.loadtxt('generalsamples.data',np.float32)
responses = np.loadtxt('generalresponses.data',np.float32)
responses = responses.reshape((responses.size,1))

model = cv2.KNearest()
model.train(samples,responses)

############################# testing part  #########################

im = cv2.imread('pi.png')
out = np.zeros(im.shape,np.uint8)
gray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)
thresh = cv2.adaptiveThreshold(gray,255,1,1,11,2)

contours,hierarchy = cv2.findContours(thresh,cv2.RETR_LIST,cv2.CHAIN_APPROX_SIMPLE)

for cnt in contours:
    if cv2.contourArea(cnt)>50:
        [x,y,w,h] = cv2.boundingRect(cnt)
        if  h>28:
            cv2.rectangle(im,(x,y),(x+w,y+h),(0,255,0),2)
            roi = thresh[y:y+h,x:x+w]
            roismall = cv2.resize(roi,(10,10))
            roismall = roismall.reshape((1,100))
            roismall = np.float32(roismall)
            retval, results, neigh_resp, dists = model.find_nearest(roismall, k = 1)
            string = str(int((results[0][0])))
            cv2.putText(out,string,(x,y+h),0,1,(0,255,0))

cv2.imshow('im',im)
cv2.imshow('out',out)
cv2.waitKey(0)

And it worked, below is the result I got:

Here it worked with 100% accuracy. I assume this is because all the digits are of the same kind and the same size.

But anyway, this is a good start to go for beginners (I hope so).

Since 1.4 this is now possible with the * operator. When given two objects, it will merge them recursively. For example,

jq -s '.[0] * .[1]' file1 file2

Important: Note the -s (--slurp) flag, which puts files in the same array.

Would get you:

{
  "value1": 200,
  "timestamp": 1382461861,
  "value": {
    "aaa": {
      "value1": "v1",
      "value2": "v2",
      "value3": "v3",
      "value4": 4
    },
    "bbb": {
      "value1": "v1",
      "value2": "v2",
      "value3": "v3"
    },
    "ccc": {
      "value1": "v1",
      "value2": "v2"
    },
    "ddd": {
      "value3": "v3",
      "value4": 4
    }
  },
  "status": 200
}

If you also want to get rid of the other keys (like your expected result), one way to do it is this:

jq -s '.[0] * .[1] | {value: .value}' file1 file2

Or the presumably somewhat more efficient (because it doesn't merge any other values):

jq -s '.[0].value * .[1].value | {value: .}' file1 file2

He was considering having the date as a key, but worried that values will be written one above other, all I wanted to show (maybe not that obvious, that why I do edit) is that he can still have values intact, not written one above other, isn't this okay?!

<?php
 $data['may_1_2002']=
 Array(
 'title_id_32'=>'Good morning', 
 'title_id_21'=>'Blue sky',
 'title_id_3'=>'Summer',
 'date'=>'1 May 2002'
 );

 $data['may_2_2002']=
 Array(
 'title_id_34'=>'Leaves', 
 'title_id_20'=>'Old times',
  'date'=>'2 May   2002 '
 );


 echo '<pre>';
 print_r($data);
?>

Follow these simple steps:

1. Right Click on "devenv.exe"
2. Click "Troubleshoot compatibility"
3. Click "Troubleshoot program" Check "The program requires additional permissions"
4. Click "Next"
5. Click "Test the program...". It should launch Visual Studio as Administrator
6. Click "Next"
7. Click "Yes, save these settings for this program"
8. Click "Close the troubleshooter"
9. Now the Visual Studio will always run as Administrator.

If you know the viewport angle of the camera, you can use the height in pixels to determine the angle from the top to bottom of the object. Then, using the distance and arctangent calculate the height:

height = arctan(angle) * distance

To find the viewport angle, point the camera at something which is of known height, and make it exactly fill the screen. For example, point it at a ruler, and make it just far enough away that you can only barely see the ends of the ruler. Measure the distance from the camera, and then your total viewport angle is

viewportAngle = tan(ruler_length / distance)

Then, suppose your camera is 480px tall (cheap webcam), and the view angle is 20°. If you have an object onscreen which is 240px tall, then its angle is 10°. If you know it's 2 feet away, you would say 2 feet * arctan(10°) = ~4.1 inches tall. (I think... it's 2am so this may be a little off)

What you're asking for isn't impossible, but it's probably not what you actually want.

Instead of trying to save the screen output to a file, just write the output to a file instead of to the screen.

Like this:

with open('outfile.txt', 'w') as outfile:
    print >>outfile, 'Data collected on:', input['header']['timestamp'].date()

Just add that >>outfile into all your print statements, and make sure everything is indented under that with statement.

More generally, it's better to use string formatting rather than magic print commas, which means you can use the write function instead. For example:

outfile.write('Data collected on: {}'.format(input['header']['timestamp'].date()))

But if print is already doing what you want as far as formatting goes, you can stick with it for now.

What if you've got some Python script someone else wrote (or, worse, a compiled C program that you don't have the source to) and can't make this change? Then the answer is to wrap it in another script that captures its output, with the subprocess module. Again, you probably don't want that, but if you do:

output = subprocess.check_output([sys.executable, './otherscript.py'])
with open('outfile.txt', 'wb') as outfile:
    outfile.write(output)

Using query builder, get the single column value such as groupName

  $groupName = DB::table('users')->where('username', $username)->pluck('groupName');

For Laravel 5.1

 $groupName=DB::table('users')->where('username', $username)->value('groupName');

Or, Using user model, get the single column value

 $groupName = User::where('username', $username)->pluck('groupName');

Or, get the first row and then split for getting single column value

 $data = User::where('username', $username)->first();
 if($data)
   $groupName=$data->groupName;

A closure would work if you only need it once. I'd use a generator.

$test_array = [
    "first_key" => "first_value", 
    "second_key" => "second_value",
];

$x_result = (function(array $arr) {
    foreach ($arr as $key => $value) {
        yield "$key loves $value";
    }
})($test_array);

var_dump(iterator_to_array($x_result));

// array(2) {
//   [0]=>
//   string(27) "first_key loves first_value"
//   [1]=>
//   string(29) "second_key loves second_value"
// }

For something reusable:

function xmap(callable $cb, array $arr)
{
    foreach ($arr as $key => $value) {
        yield $cb($key, $value);
    }
}

var_dump(iterator_to_array(
    xmap(function($a, $b) { return "$a loves $b"; }, $test_array)
));

That is an object, not an array. So you would do:

var json = { cool: 34.33, alsocool: 45454 };
json.supercool = 3.14159;
console.dir(json);

If none of the above method worked then try this it worked for me.

Go to File > Project Structure> Project and then in Project Compiler Output click on the three dots and provide the path of your project name(name of the file) and then click on Apply and than on Ok.

It may be something like this in HTML:

<div class="container-outer">
   <div class="container-inner">
      <!-- Your images over here -->
   </div>
</div>

With this stylesheet:

.container-outer { overflow: scroll; width: 500px; height: 210px; }
.container-inner { width: 10000px; }

You can even create an intelligent script to calculate the inner container width, like this one:

$(document).ready(function() {
   var container_width = SINGLE_IMAGE_WIDTH * $(".container-inner a").length;
   $(".container-inner").css("width", container_width);
});