How do you remove all the options of a select box and then add one option and select it with jQuery?

jQueryWeb DevelopmentFront End Technology

To remove, use remove() and append() to add option in already created select list. Let’s say the following is our select −

<select id="demo">
   <option value="JavaScript">JavaScript</option>
   <option value="MySQL">MySQL</option>
</select>

Example

Following is the code to remove all the options and add a new one −

 Live Demo

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Document</title>
</head>
<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>
<body>
   <select id="demo">
      <option value="JavaScript">JavaScript</option>
      <option value="MySQL">MySQL</option>
   </select>
</body>
<script>
   $('#demo')
   .find('option')
   .remove()
   .end()
   .append('<option value="MongoDB">MongoDB</option>')
   .val('MongoDB')
   ;
</script> 
</html>

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

Output

The output is as follows −

raja
Published on 03-Oct-2020 17:23:30
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