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/137.0.0.0 Safari/537.36

Browser: Chrome 137

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

lookup

207.9M/s

includes

116.4M/s

View exact numbers

Test name	Executions per second
✓ lookup	207,915,184 Ops/sec
includes	116,394,240 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: