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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

lookup

1573.9M/s

includes

41.3M/s

View exact numbers

Test name	Executions per second
✓ lookup	1,573,877,376 Ops/sec
includes	41,254,272 Ops/sec

Script Preparation code:

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

Tests: