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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0

Browser: Firefox 139

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

lookup

1282.3M/s

includes

27.2M/s

View exact numbers

Test name	Executions per second
✓ lookup	1,282,326,784 Ops/sec
includes	27,188,708 Ops/sec

Script Preparation code:

var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var b = new Set(a)

Tests: