how to add an id using jquery code example

Example 1: add id jquery

$('element').attr('id', 'value');

Example 2: how to add id in jquery

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>add demo</title>
  <script src="https://code.jquery.com/jquery-3.5.0.js"></script>
</head>
<body>
 
<p>Hello</p>
<span id="a">Hello Again</span>
 
<script>
var collection = $( "p" );
// Capture the new collection
collection = collection.add( document.getElementById( "a" ) );
collection.css( "background", "yellow" );
</script>
 
</body>
</html>

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Javascript Example

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