<div>
Plain javascript:<br />
<br />

<pre><code id="code-20-38357013-1">function Toggle(id) {
  var o=document.getElementById(id);
  o.style.display = (o.style.display == 'none') ? 'block' : 'none';
}</code></pre>
<br />
Usage:<br />
<br />

<pre><code id="code-20-38357013-2">&lt;button onclick=&quot;Toggle('TheDiv')&quot;&gt;On/off&lt;/button&gt;
&lt;div id=&quot;TheDiv&quot;&gt;Hello!&lt;/div&gt;</code></pre>
</div>


Plain javascript:



function Toggle(id) {
  var o=document.getElementById(id);
  o.style.display = (o.style.display == 'none') ? 'block' : 'none';
}


Usage:



<button onclick="Toggle('TheDiv')">On/off</button>
<div id="TheDiv">Hello!</div>

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<div class="content wysiwyg-content">
Dear Experts,<br />
<br />
I am new to JavaScript, i want to implement a task that, hide/show or expanding/collapsing a division using javascript / jquery.<br />
<br />
Kindly provide the required code.
</div>
</div>


Dear Experts,

I am new to JavaScript, i want to implement a task that, hide/show or expanding/collapsing a division using javascript / jquery.

Kindly provide the required code.

How to expanding and collapsing a division using JavaScript/jquery

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.

JavaScript

jQuery (Core) is a cross-browser JavaScript library that provides abstractions for common client-side tasks such as Document Object Model (DOM) traversal, DOM manipulation, event handling, animation and Ajax. jQuery also provides a platform to create plugins that extend jQuery's capabilities beyond those already provided by the library.