<!DOCTYPE html>
<html lang="en-US">
<body>
<p>Do p tag has a child?</p>
<button onclick="myFunction()">Check Here</button>
<script>
var x = document.getElementsByTagName("p")[0];
function myFunction(){
alert(x.hasChildNodes());
}
</script>
<p><strong>Note:</strong> TextNode is also a child.</p> </body>
</html>