Run results for: jQuery AJAX vs Fetch API

Benchmark jQuery AJAX wrapper vs Fetch API that shows the power of Vanilla JS Checked test: jQuery x 20,305 ops/sec ±5.52% (61 runs sampled) => 50ms execution time Checked test: Vanilla JS x 26,853 ops/sec ±6.86% (56 runs sampled) => 38ms execution time

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/133.0.6943.120 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 133

Operating system: iOS 18.3.1

Device Platform: Mobile

Date tested: one year ago

Vanilla JS test case

167K/s

jQuery test case

42K/s

View exact numbers

Test name	Executions per second
✓ Vanilla JS test case	166,875 Ops/sec
jQuery test case	41,748 Ops/sec

HTML Preparation code:

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

Tests:

jQuery test case
$.ajax({ type: 'POST', url: "http://vanilla-js.com/path/to/api", data: {'banana': 'yellow'}, success: (data) = {}, });
Vanilla JS test case
const sendAjax = (url, data, callback) => { fetch(url, { method: 'POST', body: new URLSearchParams(data), }).then((response) => { const contentType = response.headers.get("content-type"); if (contentType && contentType.indexOf("application/json") !== -1) { return response.json().then(data => {callback(data)}); } else { return response.text().then(text => {callback(text)}); } }); } sendAjax('http://vanilla-js.com/path/to/api', {'banana': 'yellow'}, (data) => {});