Run results for: then vs. async-await

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

then

1.1M/s

async-await

466K/s

View exact numbers

Test name	Executions per second
✓ then	1,057,987 Ops/sec
async-await	466,050 Ops/sec

Tests:

then
function one() { return new Promise((resolve, reject) => { return resolve(`hi`); }); } function khw() { one().then((message) => console.log(message)); } khw();
async-await
function one() { return new Promise((resolve, reject) => { return resolve(`hi`); }); } async function khw() { console.log(await one()); } khw();