w3resource

jQuery: Count all elements within a division

jQuery Fundamental - I : Exercise-18

Using jQuery count all elements within a division.

<body>
<div  id="iddiv"> 
<span>This is a span</span>
<p>This is a Paragraph</p>
<button id="button1">Click to see the effect</button> 
</div>
</body>

Sample solution :

HTML Code :

<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery-git.js"></script>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Count all elements within a division.</title>
</head>
<body>
<div  id="iddiv">
<span>This is a span</span>
<p>This is a Paragraph</p>
<button id="button1">Click to see the effect</button>
</div>
</body>
</html>

CSS Code:

button {
    display: block;
    margin: 20px 0 0 0;
    clear: both
    }  


   span, p {
    width: 160px;
    height: 40px;
    float: left;
    padding: 10px;
    margin: 10px;
    background-color: #B0E0E6
  }

JavaScript Code :

$('#button1').click(function(){ 

  var elementCount = $( "#iddiv" ).find( "*" ).css( "border", "2px solid blue" ).length;

  $( "body" ).prepend( "" + elementCount + " element(s) found" );
});

See the Pen jquery-fundamental-exercise-18 by w3resource (@w3resource) on CodePen.


Contribute your code and comments through Disqus.

Previous: Using jQuery count every element (including head, body, etc.) in the document.
Next: Using jQuery click the button to animate the paragraph element with a number of different properties.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Become a Patron!

Follow us on Facebook and Twitter for latest update.

It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.

https://w3resource.com/jquery-exercises/1/jquery-fundamental-exercise-18.php