<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> </head>
<body>
<h1>jQuery extend() Method</h1>
<p>Click on the button and check your console.</p>
<button>Click Me</button>
<script>
$(document).ready(function(){
$("button").click(function(){
var a = {foo: 1, bar: 1};
var b = {foo: 2, koo: 2};
var c = {koo: 3, yaa: 3}
var r = $.extend(a, b, c);
console.log(a);
console.log(b);
console.log(c);
console.log(r);
console.log(a === r);
});
});
</script> </body>
</html>