What is the difference between node.isSameNode (node1) and node === node1 in the DOM?

Question

var a = document.getElementById('a'); var b = document.getElementById('a'); a.isSameNode(b); // true a === b; // true 

What is the browser compatibility of each approach?

Answer 1

isSameNode is deprecated in DOM v4 . Firefox has dropped support in version 10. I believe that other major browsers support this now.

Recommended approach is to use '==='