Preview:
<!DOCTYPE html>
<html>
<body>
​
Radio button:<input type="radio" id="myRadio" checked>
​
<p>Click the "Try it" button to find out whether the radio button is checked, or not.</p>
​
<button onclick="myFunction()">Try it</button>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  var x = document.getElementById("myRadio").checked;
  document.getElementById("demo").innerHTML = x;
}
</script>
​
</body>
</html>
​
downloadDownload PNG downloadDownload JPEG downloadDownload SVG

Tip: You can change the style, width & colours of the snippet with the inspect tool before clicking Download!

Click to optimize width for Twitter