Run results for: Array vs Set loopup in Javascript

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

Set.prototype.has

28.0M/s

Array.prototype.includes

26.3M/s

View exact numbers

Test name	Executions per second
✓ Set.prototype.has	27,952,500 Ops/sec
Array.prototype.includes	26,261,336 Ops/sec

Script Preparation code:

var arr = [];
var i = 0;

while (i <= 1E5) arr.push(++i);
var set = new Set(arr);

Tests: