Run results for: set.has vs. array.includes for 1000 elements

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser: Chrome 125

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

lookup

24.2M/s

includes

21.9M/s

View exact numbers

Test name	Executions per second
✓ lookup	24,220,140 Ops/sec
includes	21,871,236 Ops/sec

Script Preparation code:

var a = Array(1000).fill(null).map((__, i) => i)
var b = new Set(Array(1000).fill(null).map((__, i) => i))

Tests: