Run results for: every vs for loop large arrays not empty

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser: Chrome 124

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
every	3.7 Ops/sec
for loop	1.0 Ops/sec

Script Preparation code:

window.a = Array(1_000_000).fill(null).flatMap(() => [1, 2, 3, 4, 5]);
window.b = [1, 2, 4, 5, 3, 5];

Tests:

every
a.every(x => b.some(y => x === y));
for loop
for (let i = 0, l = a.length; i < l; i++) { if (!b.some(y => a[i] === y)) { break; } }