Use the `htmlFor` attribute. I assume it has a slightly cryptic name because `for` is a keyword in JavaScript:

    var label = document.createElement(&#39;label&#39;);
    label.htmlFor = &#39;some-input-id&#39;;

I&#39;m wondering about Heroku server status and can&#39;t find any documentation about this topic.

Example: 

    Process exited with status 143
 
Can anyone explain this example? And where would I find resources for future reference?

Understanding Heroku server status 143

I have an html table with `table-layout: fixed` and a td with a set width.  The column still expands to hold the contents of text that doesn&#39;t contain a space.  Is there a way to fix this other than wrapping the contents of each td in a div?

Example: http://jsfiddle.net/6p9K3/29/

	&lt;table&gt;
		&lt;tbody&gt;
			&lt;tr&gt;
				&lt;td style=&quot;width: 50px;&quot;&gt;Test&lt;/td&gt;
				&lt;td&gt;Testing 1123455&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;
				&lt;td style=&quot;width: 50px;&quot;&gt;AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA&lt;/td&gt;
				&lt;td&gt;B&lt;/td&gt;
			&lt;/tr&gt;
		&lt;/tbody&gt;
	&lt;/table&gt;

	table
	{
		table-layout: fixed;
	}

	td
	{
		border: 1px solid green;
		overflow: hidden;
	}

In the example, you can see that the column with AAAAAAAAAAAA... expands despite being explicitly set to 50px wide.

Force table column widths to always be fixed regardless of contents

How do you set the `for` attribute of an HTML `&lt;label&gt;` element in JavaScript, without using jQuery or any other library?

Setting the HTML &lt;label&gt; &#39;for&#39; attribute in JavaScript

<p>How do you set the <code>for</code> attribute of an HTML <code>&#x3C;label></code> element in JavaScript, without using jQuery or any other library?</p>


I have a chart that I want to include in my website using [Chart.js][1]. In the Y-axis, it gives me real numbers instead of integers. How can I change the number to integers?

Here&#39;s a picture of what I have now: 

[![current chart with real numbers][2]][2]


And this is the code:

	var lineChartData = {
                        
		labels : [&quot;2013/04/01&quot;,&quot;2013/03/31&quot;, &quot;2013/03/30&quot;, &quot;2013/03/29&quot;, &quot;2013/03/28&quot;,&quot;2013/03/27&quot;, &quot;2013/03/26&quot;],
      
		datasets : [
			{
				fillColor : &quot;rgba(151,187,205,0.5)&quot;,
				strokeColor : &quot;rgba(151,187,205,1)&quot;,
				pointColor : &quot;rgba(151,187,205,1)&quot;,
				pointStrokeColor : &quot;#fff&quot;,
				data : [&quot;0&quot;, &quot;2&quot;,&quot;1&quot;, &quot;0&quot;, &quot;1&quot;,&quot;0&quot;,&quot;1&quot;]
			}
		]
			
	}

	var myLine = new Chart(document.getElementById(&quot;canvas&quot;).getContext(&quot;2d&quot;)).Bar(lineChartData);


  [1]: http://www.chartjs.org/
  [2]: http://i.stack.imgur.com/F9nUW.png

Change the Y-axis values from real numbers to integers in Chart.js

This is my template:

&lt;!-- language: lang-html --&gt;

    &lt;div class=&quot;span12&quot;&gt;
      &lt;ng:view&gt;&lt;/ng:view&gt;
    &lt;/div&gt;

and this is my view template:

&lt;!-- language: lang-html --&gt;

    &lt;h1&gt;{{stuff.title}}&lt;/h1&gt;
    
    {{stuff.content}}

I am getting the `content` as html and I want to display that in a view, but all I am getting is raw html code. How can I render that HTML?


How to render html with AngularJS templates

I&#39;m generating a page with lot of product, and for this, i need lot of  ID, and i did it using a server side (Python) so i send for every product its own `&lt;div id=&#39;hello1&#39;&gt; test &lt;/div&gt;`

Now because the user will dinamycaly set a value and see the result in the browser, i want to generate another `ID` , to this i&#39;ve found `btoa(&quot;hello1&quot;)` so i generate another `ID`

So the question, how do i put `btoa(&quot;hello1&quot;)` in `&lt;div&gt;` ?

Edit:  what i want to generate is another `&lt;div&gt;` and not updating the first one.

    &lt;input id=&quot;{{str(product[&quot;avt&quot;][&quot;fto&quot;])}}&quot; &gt; this will become  &lt;input id=&quot;12232&quot; &gt; because it is special to Tornado Template
    &lt;span&gt;New price :&lt;/span&gt;
    &lt;span id=btoa({{str(produit[&quot;avt&quot;][&quot;fto&quot;])}})&gt; This  is where i use innerHTML &lt;/span&gt;

as you can see, the  users will put a value and see it dynamically.

This will work from Python using:

    &lt;span id=&quot;{{base64.b64encode(str(produit[&quot;avt&quot;][&quot;fto&quot;]))}}&quot;&gt;&lt;/span&gt;

but i if it can be done using Javascript, the server will be free for the half of the operations!

How to set ID using javascript?

I am trying to call a PHP function from an external PHP file into a JavaScript script. My code is different and large, so I am writing a sample code here. 

This is my PHP code:

&lt;!-- language: php --&gt;

    &lt;?php
    function add($a,$b){
      $c=$a+$b;
      return $c;
    }
    function mult($a,$b){
      $c=$a*$b;
      return $c;
    }
    
    function divide($a,$b){
      $c=$a/$b;
      return $c;
    }
    ?&gt;

This is my JavaScript code:

&lt;!-- language: html --&gt;

    &lt;script&gt;
      var phpadd= add(1,2); //call the php add function
      var phpmult= mult(1,2); //call the php mult function
      var phpdivide= divide(1,2); //call the php divide function
    &lt;/script&gt;

So this is what I want to do.

My **original** PHP file doesn&#39;t include these mathematical functions but the idea is same.

If some how it doesn&#39;t have a proper solution, then may you **please** suggest an alternative, but it should call values from external PHP.

How can I call PHP functions by JavaScript?

I have the following JavaScript syntax:

    var discount = Math.round(100 - (price / listprice) * 100);

This rounds up to the whole number. How can I return the result with two decimal places?


JavaScript math, round to two decimal places

I&#39;ve always been confused between HTMLCollections, objects, and arrays when it comes to DOM.  For instance...

 1. What is the difference between `document.getElementsByTagName(&quot;td&quot;)` and `$(&quot;td&quot;)`?
 2. `$(&quot;#myTable&quot;)` and `$(&quot;td&quot;)` are objects (jQuery objects).  Why is console.log also showing the array of DOM elements beside them, and are they not objects and not an array?
 3. What is the elusive &quot;NodeLists&quot; all about, and how do I select one?

Please also provide any interpretation of the below script.

```lang-js
[123,&quot;abc&quot;,321,&quot;cba&quot;]=[123,&quot;abc&quot;,321,&quot;cba&quot;]
{123:123,abc:&quot;abc&quot;,321:321,cba:&quot;cba&quot;}=Object { 123=123, abc=&quot;abc&quot;, 321=321, more...}
Node= Node { ELEMENT_NODE=1, ATTRIBUTE_NODE=2, TEXT_NODE=3, more...}
document.links= HTMLCollection[a #, a #]
document.getElementById(&quot;myTable&quot;)= &lt;table id=&quot;myTable&quot;&gt;
document.getElementsByClassName(&quot;myRow&quot;)= HTMLCollection[tr.myRow, tr.myRow]
document.getElementsByTagName(&quot;td&quot;)= HTMLCollection[td, td, td, td]
$(&quot;#myTable&quot;)= Object[table#myTable]
$(&quot;td&quot;)= Object[td, td, td, td]


&lt;!DOCTYPE html PUBLIC &quot;-//W3C//DTD XHTML 1.0 Transitional//EN&quot; &quot;http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd&quot;&gt; 
&lt;html xmlns=&quot;http://www.w3.org/1999/xhtml&quot;&gt; 
    &lt;head&gt; 
        &lt;meta http-equiv=&quot;content-type&quot; content=&quot;text/html; charset=ISO-8859-1&quot; /&gt; 
        &lt;title&gt;Collections?&lt;/title&gt;  
        &lt;script src=&quot;http://code.jquery.com/jquery-latest.js&quot; type=&quot;text/javascript&quot;&gt;&lt;/script&gt; 
        &lt;script type=&quot;text/javascript&quot;&gt;
            $(function(){
                console.log(&#39;[123,&quot;abc&quot;,321,&quot;cba&quot;]=&#39;,[123,&quot;abc&quot;,321,&quot;cba&quot;]);
                console.log(&#39;{123:123,abc:&quot;abc&quot;,321:321,cba:&quot;cba&quot;}=&#39;,{123:123,abc:&quot;abc&quot;,321:321,cba:&quot;cba&quot;});
                console.log(&#39;Node=&#39;,Node);
                console.log(&#39;document.links=&#39;,document.links);
                console.log(&#39;document.getElementById(&quot;myTable&quot;)=&#39;,document.getElementById(&quot;myTable&quot;));
                console.log(&#39;document.getElementsByClassName(&quot;myRow&quot;)=&#39;,document.getElementsByClassName(&quot;myRow&quot;))
                console.log(&#39;document.getElementsByTagName(&quot;td&quot;)=&#39;,document.getElementsByTagName(&quot;td&quot;));
                console.log(&#39;$(&quot;#myTable&quot;)=&#39;,$(&quot;#myTable&quot;));
                console.log(&#39;$(&quot;td&quot;)=&#39;,$(&quot;td&quot;));
            });
        &lt;/script&gt;
    &lt;/head&gt;

    &lt;body&gt;
        &lt;a href=&quot;#&quot;&gt;Link1&lt;/a&gt;
        &lt;a href=&quot;#&quot;&gt;Link2&lt;/a&gt;
        &lt;table id=&quot;myTable&quot;&gt;
            &lt;tr class=&quot;myRow&quot;&gt;&lt;td&gt;td11&lt;/td&gt;&lt;td&gt;td12&lt;/td&gt;&lt;/tr&gt;
            &lt;tr class=&quot;myRow&quot;&gt;&lt;td&gt;td21&lt;/td&gt;&lt;td&gt;td22&lt;/td&gt;&lt;/tr&gt;
        &lt;/table&gt;
    &lt;/body&gt; 
&lt;/html&gt;
```

Difference between HTMLCollection, NodeLists, and arrays of objects

I am Javascript beginner.

I am initing web page via the `window.onload`, I have to find bunch of elements by their class name (`slide`) and redistribute them into different nodes based on some logic. I have function `Distribute(element)` which takes an element as input and does the distribution. I want to do something like this (as outlined for example [here][1] or [here][2]):

    var slides = getElementsByClassName(&quot;slide&quot;);
    for(var i = 0; i &lt; slides.length; i++)
    {
       Distribute(slides[i]);
    }

however this does not do the magic for me, because `getElementsByClassName` does not actually return array, but a [`NodeList`][3], which is... 

**...this is my speculation...**

...being changed inside function `Distribute` (the DOM tree is being changed inside this function, and cloning of certain nodes happen). `For-each` loop structure does not help either.

The variable slides act&#39;s really un-deterministicaly, through every iteration it changes it&#39;s length and order of elements wildly.


What is the correct way to iterate through NodeList in my case? I was thinking about filling some temporary array, but am not sure how to do that...

**EDIT:**
---------

 

important fact I forgot to mention is that there might be one slide inside another, this is actually what changes the `slides` variable as I have just found out thanks to user [Alohci][4].

The solution for me was to clone each element into an array first and pass the array ono-by-one into `Distribute()` afterwards.


  [1]: https://stackoverflow.com/questions/5179798/javascript-getelementsbyclassname-always-returns-none
  [2]: https://stackoverflow.com/questions/3871547/js-iterating-over-result-of-getelementsbyclassname-using-array-foreach
  [3]: https://developer.mozilla.org/en-US/docs/DOM/NodeList
  [4]: https://stackoverflow.com/users/42585/alohci

How to correctly iterate through getElementsByClassName

I need to accurately measure the dimensions of text within my web app, which I am achieving by creating an element (with relevant CSS classes), setting its `innerHTML` then adding it to the container using `appendChild`.

After doing this, there is a wait before the element has been rendered and its `offsetWidth` can be read to find out how wide the text is.

Currently, I&#39;m using `setTimeout(processText, 100)` to wait until the render is complete.

Is there any callback I can listen to, or a more reliable way of telling when an element I have created has been rendered?

Is there &#39;element rendered&#39; event?

## Before I paste any code, here&#39;s the scenario: ##

   1. I have an HTML document that creates an empty iframe using JavaScript
   2. The JavaScript creates a function and attaches a reference to that function to the iframe&#39;s document object (using `doc.open()` to get a reference to the document)
   3. The function is then attached as an `onload` handler for the iframe&#39;s document (by writing `&lt;body onload=&quot;...&quot;&gt;` into the iframe.

Now what has me stumped is that the global (window) and document objects inside the onload handler (while it&#39;s running) is different from the same objects run through JavaScript added via script nodes.

## Here&#39;s the HTML: ##

    &lt;!doctype html&gt;
    &lt;html&gt;
    &lt;head&gt;
    &lt;script&gt;
    (function(){
      var dom,doc,where,iframe;
    
      iframe = document.createElement(&#39;iframe&#39;);
      iframe.src=&quot;javascript:false&quot;;
    
      where = document.getElementsByTagName(&#39;script&#39;)[0];
      where.parentNode.insertBefore(iframe, where);
    
      doc = iframe.contentWindow.document;
    
      var _doc = document;
    
      doc.open()._l=function() {
        // the window object should be the one that doc is inside
        window.vanishing_global=new Date().getTime();
    
        var js = this.createElement(&quot;script&quot;);
        js.src = &#39;test-vanishing-global.js?&#39; + window.vanishing_global;
    
        window.name=&quot;foobar&quot;;
        this.foobar=&quot;foobar:&quot; + Math.random();
        document.foobar=&quot;barfoo:&quot; + Math.random();
    
        // `this` should be the document object, but it&#39;s not
        console.log(&quot;this == document: %s&quot;, this == document);
        console.log(&quot;this == doc:      %s&quot;, this == doc);

        // the next two lines added based on @Ian&#39;s comment below
        console.log(&quot;_doc == document: %s&quot;, _doc == document);
        console.log(&quot;_doc == doc:      %s&quot;, _doc == doc);

        console.log(&quot;name: &quot; + window.name + &quot;\n&quot; + &quot;window.vanishing_global: &quot; + window.vanishing_global + &quot;\ntypeof window.vanishing_global: &quot; + typeof window.vanishing_global + &quot;\ndocument.foobar: &quot; + document.foobar);
        this.body.appendChild(js);
      };
      doc.write(&#39;&lt;body onload=&quot;document._l();&quot;&gt;&lt;/body&gt;&#39;);
      doc.close();
    })();
    &lt;/script&gt;
    &lt;/head&gt;
    &lt;body&gt;
    &lt;/body&gt;
    &lt;/html&gt;

## And here&#39;s `test-vanishing-global.js`: ##

    console.log(&quot;name: &quot; + window.name + &quot;\n&quot; + &quot;window.vanishing_global: &quot; + window.vanishing_global + &quot;\ntypeof window.vanishing_global: &quot; + typeof window.vanishing_global + &quot;\ndocument.foobar: &quot; + document.foobar);

## Instructions: ##
Put these two files into a directory, and open the HTML in a browser (tested in latest Chrome and Firefox, same result in both).

## This is the output I get: ##

    this == document: false
    this == doc:      true
    _doc == document: true
    _doc == doc:      false
    
    name: foobar
    window.vanishing_global: 1366037771608
    typeof window.vanishing_global: number
    document.foobar: barfoo:0.9013048021588475
    
    name: 
    window.vanishing_global: undefined
    typeof window.vanishing_global: undefined
    document.foobar: foobar:0.5015988759696484

The `this` object inside the handler should be either the document object.  It _is_ a document object, but not the same document object as the document that it runs inside (it&#39;s also not the same as the parent document).  The window object inside the handler is also not the same as the window object that runs in JavaScript loaded in the page.

## So finally my question: ##

Does anyone know what&#39;s going on, and how I can either get a reference to the actual window object, or at least declare and reference global variable from the same global context?

## Footnotes: ##

There are no cross-domain issues with this iframe since they&#39;re on the same domain.  There is an issue if someone sets `document.domain`, but that&#39;s not being done in this example code.

How to get a reference to an iframe&#39;s window object inside iframe&#39;s onload handler created from parent window

I have an AngularJS project, I want to prevent a FOUC during page load on a classname. I&#39;ve read about ng-template but that seems useful only for content within a tag.


    &lt;body class=&quot;{{ bodyClass }}&quot;&gt;

I would like it to be &quot;login&quot; on page load. Any strategy for this? Or do I just have to fudge it and load it as &#39;login&#39; and manually use javascript to to tweak the DOM just for this instance.

Content Type	Original Author	Original Content on Stackoverflow
Question	Drew Noakes	View Question on Stackoverflow
Solution 1 - Javascript	Drew Noakes	View Answer on Stackoverflow

Setting the HTML <label> 'for' attribute in JavaScript

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Force table column widths to always be fixed regardless of contents

Understanding Heroku server status 143

Attributions