Run results for: $.extend() vs Object.assign()

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
$.extend()	5485506.5 Ops/sec
Object.assign()	6171487.5 Ops/sec

HTML Preparation code:

<script type="text/javascript" src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
<div id="testThisId"></div>

Tests:

$.extend()
var target = { a: 1, b: 2 }; var source = { b: 4, c: 5 }; var returnedTarget = $.extend(target, source);
Object.assign()
var target = { a: 1, b: 2 }; var source = { b: 4, c: 5 }; var returnedTarget = Object.assign(target, source);