Checking a radio in radio group with JavaScript?

Javascript Web Development Object Oriented Programming

Let’s say the following is our radio button group −

<label>
   Gender:
   <input type="radio" name="gender" value="Male" />Male
   <input type="radio" name="gender" value="Female" checked/>Female
</label>

To check a radio in radio group, you need to set checked property to true in JavaScript. Following is the code −

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>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/fontawesome/4.7.0/css/font-awesome.min.css">
</head>
<body>
<label>
Gender:
<input type="radio" name="gender" value="Male" />Male
<input type="radio" name="gender" value="Female" checked/>Female
</label>
<script>
   var tagValues = document.getElementsByTagName('input');
   for (const obj of tagValues) {
      if (obj.value === 'Male'){
         obj.checked = true;
      }
   }
</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

Updated on: 12-Sep-2020

434 Views

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