jQuery: Set the background color of the 4th division red by adding an appropriate class

Last update on August 19 2022 21:50:45 (UTC/GMT +8 hours)

jQuery Fundamental - II : Exercise-86

Set the background color of the 4th division red by adding an appropriate class.

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>Set the background color of the 4th  division red by adding an appropriate class.</title>
</head>
<body>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<button id="button1">Click to see the effect</button>
</body>
</html>

CSS Code :

 div {
  width: 20px;
  height: 20px;
  margin: 5px;
  float: left;
  border: 2px solid green;
  }
  .red {
  background: red;
  }
 button {
  display: block;
  margin: 20px 0 0 0;
  }

JavaScript Code :

$('#button1').click(function(){ 
$( "body" ).find( "div" ).eq( 3 ).addClass( "red" );
});

See the Pen jquery-fundamental-exercise-86 by w3resource (@w3resource) on CodePen.

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