The selected answer would work for as long as you know the key itself that you want to delete but if it should be truly dynamic you would need to use the [] notation instead of the dot notation.

For example: 

    var keyToDelete = &quot;key1&quot;;
    var myObj = {&quot;test&quot;: {&quot;key1&quot;: &quot;value&quot;, &quot;key2&quot;: &quot;value&quot;}}

    //that will not work.
    delete myObj.test.keyToDelete 

instead you would need to use:

    delete myObj.test[keyToDelete];

Substitute the dot notation with [] notation for those values that you want evaluated before being deleted.

I bind two event handlers on this link:

    &lt;a href=&#39;#&#39; id=&#39;elm&#39;&gt;Show Alert&lt;/a&gt;

**JavaScript:**

    $(function()
    {
      $(&#39;#elm&#39;).click(_f);
      $(&#39;#elm&#39;).mouseover(_m);
    });

    function _f(){alert(&#39;clicked&#39;);}
    function _m(){alert(&#39;mouse over&#39;);}

Is there any way to get a list of all events bound on an element, in this case on element with `id=&quot;elm&quot;`?

Can I find events bound on an element with jQuery?

I need to find the encoding of all files that are placed in a directory. Is there a way to find the encoding used?

The [`file`][1] command is not able to do this.

The encoding that is of interest to me is [ISO&amp;nbsp;8859-1][2]. If the encoding is anything else, I want to move the file to another directory.

  [1]: https://linux.die.net/man/1/file
  [2]: https://en.wikipedia.org/wiki/ISO/IEC_8859-1




How can I find encoding of a file via a script on Linux?

if I have a JSON object say:

    var myObj = {&#39;test&#39; : {&#39;key1&#39; : &#39;value&#39;, &#39;key2&#39;: &#39;value&#39;}}

can I remove &#39;key1&#39; so it becomes:

    {&#39;test&#39; : {&#39;key2&#39;: &#39;value&#39;}}

Remove a JSON attribute

if I have a JSON object say:
<pre><code class="hljs language-ini">var myObj = {'test' : {'key1' : 'value', 'key2': 'value'}}
</code></pre>
can I remove 'key1' so it becomes:
<pre><code class="hljs language-arduino">{'test' : {'key2': 'value'}}
</code></pre>

I’m using JavaScript to pull a value out from a hidden field and display it in a textbox. The value in the hidden field is encoded.

For example,

&lt;!-- language: lang-html --&gt;

    &lt;input id=&#39;hiddenId&#39; type=&#39;hidden&#39; value=&#39;chalk &amp;amp; cheese&#39; /&gt;

gets pulled into

&lt;!-- language: lang-html --&gt;

    &lt;input type=&#39;text&#39; value=&#39;chalk &amp;amp; cheese&#39; /&gt;

via some jQuery to get the value from the hidden field (it’s at this point that I lose the encoding):

&lt;!-- language: lang-js --&gt;

    $(&#39;#hiddenId&#39;).attr(&#39;value&#39;)

The problem is that when I read `chalk &amp;amp; cheese` from the hidden field, JavaScript seems to lose the encoding. I do not want the value to be `chalk &amp; cheese`. I want the literal `amp;` to be retained.

Is there a JavaScript library or a jQuery method that will HTML-encode a string?

HTML-encoding lost when attribute read from input field

How can I select all elements that have a specific CSS property applied, using jQuery? For example:

    .Title
    {
        color:red;
        rounded:true;
    }

    .Caption
    {
        color:black;
        rounded:true;
    }

How to select by property named &quot;rounded&quot;?

CSS class name is very flexible.

    $(&quot;.Title&quot;).corner();
    $(&quot;.Caption&quot;).corner();

How to replace this two operation to one operation. Maybe something like this:

    $(&quot;.*-&gt;rounded&quot;).corner();

Is there any better way to do this?

Select all elements that have a specific CSS, using jQuery

Here is the case:
I want to find the elements which match the regex...

&gt; targetText = &quot;SomeT1extSomeT2extSomeT3extSomeT4extSomeT5extSomeT6ext&quot;

and I use the regex in javascript like this

    reg = new RegExp(/e(.*?)e/g);   
    var result = reg.exec(targetText);

and I only get the first one, but not the follow....
I can get the T1 only, but not T2, T3 ... ...

How to loop all the elements that match the regex?

I want to create a pie chart in JavaScript. On searching I found the Google Charts API. Since we are using jQuery I found that there is [jQuery integration for Google Charts][1] available. 

But my problem is here the actual data is sent to the Google server for creating the charts. Is there a way to prevent the data from being sent to Google?  I am concerned about sending my data to a third party.

  [1]: http://www.maxb.net/scripts/jgcharts/include/demo

Pie chart with jQuery

Is there any way to call a function periodically in JavaScript?

Are there any classes/functions available to be used for easy JSON escaping? I&#39;d rather not have to write my own.

How to escape JSON string?

&gt; **Possible Duplicate:**  
&gt; [How to format a JSON date?](https://stackoverflow.com/questions/206384/how-to-format-a-json-date)  

&lt;!-- End of automatically inserted text --&gt;

I have the following result from a $getJSON call from JavaScript.  How do I convert the start property to a proper date in JavaScript?

&gt; [
&gt; {&quot;id&quot;:1,&quot;start&quot;:&quot;\/Date(1238540400000)\/&quot;},
&gt; {&quot;id&quot;:2,&quot;start&quot;:&quot;\/Date(1238626800000)\/&quot;}
&gt; ]

Thanks!

Converting json results to a date

I have some data that I need to convert to JSON format and then POST it with a JavaScript function.

    &lt;body onload=&quot;javascript:document.myform.submit()&quot;&gt;
    &lt;form action=&quot;https://www.test.net/Services/RegistrationService.svc/InviteNewContact&quot; method=&quot;post&quot; name=&quot;myform&quot;&gt;
      &lt;input name=&quot;firstName&quot; value=&quot;harry&quot; /&gt;
      &lt;input name=&quot;lastName&quot; value=&quot;tester&quot; /&gt;
      &lt;input name=&quot;toEmail&quot; value=&quot;testtest@test.com&quot; /&gt;
    &lt;/form&gt;
    &lt;/body&gt;

This is the way the post looks now. I need it submit the values in JSON format and do the POST with JavaScript.

POST data in JSON format

I am using jquery, JSON, and AJAX for a comment system. I am curious, is there a size limit on what you can send through/store with JSON?  Like if a user types a large amount and I send it through JSON is there some sort of maximum limit?  


Also can any kind of text be sent through JSON.  for example sometime I allow users to use html, will this be ok?

Is there a limit on how much JSON can hold?

It is quite easy to load HTML content from your custom URLs/Web services using JQuery or any other similar framework. I&#39;ve used this approach many times and till now and found the performance satisfactory.

But all the books, all the experts are trying to get me to use JSON instead of generated HTML. How&#39;s it much more superior than HTML? 

**Is it very much faster?&lt;br /&gt;
Does it have a very much lesser load on the server?**

On the other side I have some reasons for using generated HTML.

1. It&#39;s simple markup, and often just as compact or actually more compact than JSON.
2. It&#39;s less error prone cause all you&#39;re getting is markup, and no code.
3. It will be faster to program in most cases cause you won&#39;t have to write code separately for the client end.

Which side are you on and why?

Content Type	Original Author	Original Content on Stackoverflow
Question	g00se0ne	View Question on Stackoverflow
Solution 1 - Javascript	Josef Pfleger	View Answer on Stackoverflow
Solution 2 - Javascript	praneetloke	View Answer on Stackoverflow

Remove a JSON attribute

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Solution 2 - Javascript

How can I find encoding of a file via a script on Linux?

Can I find events bound on an element with jQuery?

Attributions