How to correctly iterate through getElementsByClassName() in JavaScript?

https://www.tutorialspoint.com/how-to-correctly-iterate-through-getelementsbyclassname-in-javascript

10-09-2020
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سؤال

How to correctly iterate through getElementsByClassName() in JavaScript?

Javascript Web Development Object Oriented Programming

To correctly iterate, use the document.getElementsByClassName(). The getElementsByClassName() is a methof od Document interface.

Following is the cod wherein we are iterating through div classes −

Example

Live Demo

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initialscale=1.0">
<title>Document</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
</head>
<body>
<div class="demo">My First JavaScript Program</div>
<div class="demo">This is the second Program</div>
<div class="demo">This is the third Program </div>
<script>
   var className = document.getElementsByClassName('demo');
   for(var index=0;index < className.length;index++){
      console.log(className[index].innerHTML);
   }
</script>
</body>
</html>

To run the above program, save the file name “anyName.html(index.html)” and right click on the file. Select the option “Open with Live Server” in VS Code editor.

Output

This will produce the following output −

AmitDiwan

Published on 07-Sep-2020 11:45:59

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