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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 YaBrowser/24.6.0.0 Safari/537.36

Browser: Yandex Browser 24

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Map.has

26.7M/s

Set.has

26.4M/s

Array.includes

173K/s

View exact numbers

Script Preparation code:

var arr = [...Array.from(Array(100000).keys())];
var set = new Set(arr)
var map = new Map(arr.map(k => [k, undefined]))

Tests: