Run results for: async vs asyncPromiseAll - LinkedIn

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 [LinkedInApp]/9.28.1299.4

Browser: Mobile Safari 16

Operating system: iOS 16.5.1

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Basic await	195131.9 Ops/sec
PromiseAll await	262462.9 Ops/sec

Script Preparation code:

async function basicAsync() {
  const fetch1 = await fetch(www.google.com);
  const fetch2 = await fetch(www.google.it);
  const fetch3 = await fetch(www.google.de);
};

async function promiseAllAsync() {
  const [fetch1, fetch2, fetch3] = await Promise.all([
    fetch(www.google.com),
    fetch(www.google.it),
    fetch(www.google.de)
  ]);
};

Tests:

Basic await
basicAsync()
PromiseAll await
promiseAllAsync()

Run results for: async vs asyncPromiseAll - LinkedIn

A common LinkedIn post debunked by Andrea Marchetti

Basic await

PromiseAll await