Javascript DOM HTML Attribute isId Property get

Introduction

Find out if an attribute is the element's ID attribute or not: 

var x = document.getElementById("demo").attributes[0].isId;

The isId property is not supported in any of the major browsers.

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<!DOCTYPE html>
<html>
<body>
<p id="demo"></p>
<button onclick="myFunction()">Test</button>
<script>
function myFunction() {/*from   w w w .ja v  a 2 s .  co m*/
  var x = document.getElementById("demo");
  x.innerHTML = x.attributes[0].isId;
}
</script>

</body>
</html>

The isId property returns true if the attribute is of type ID, otherwise it returns false.

This property is read-only.




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