Run results for: async vs asyncPromiseAll - LinkedIn

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 [LinkedInApp]/9.28.1299

Browser: AppleMail 605

Operating system: Mac OS X 10.15.7

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Basic await	495963.6 Ops/sec
PromiseAll await	545907.4 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