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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:127.0) Gecko/20100101 Firefox/127.0

Browser: Firefox 127

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

lookup

1541.7M/s

includes

61.6M/s

View exact numbers

Test name	Executions per second
✓ lookup	1,541,725,952 Ops/sec
includes	61,636,764 Ops/sec

Script Preparation code:

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

Tests: