Run results for: jQuery.extend vs JSON.stringify(JSON.parse())

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0

Browser: Chrome 141

Operating system: Windows

Device Platform: Desktop

Date tested: 11 months ago

Benchmark engine: Benchmark.js

jQuery.extend

6.9M/s

JSON.stringify

3.5M/s

View exact numbers

Test name	Executions per second
✓ jQuery.extend	6,869,399 Ops/sec
JSON.stringify	3,526,199 Ops/sec

HTML Preparation code:

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>

Tests:

jQuery.extend
const arr1 = [ true, 1, "true", [], {}, function () {} ]; const arr2 = $.extend(arr1);
JSON.stringify
const arr1 = [ true, 1, "true", [], {}, function () {} ]; const arr2 = JSON.parse(JSON.stringify(arr1));