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.