Run results for: Array.includes vs Set.has vas Map.has

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.4 Safari/605.1.15

Browser: Safari 15

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Array includes	16474121.0 Ops/sec
Set has	25774538.0 Ops/sec
Map has	26628480.0 Ops/sec

Script Preparation code:

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

Tests:

Array includes
return a.includes(9);
Set has
return b.has(9);
Map has
return c.has(9);

Run results for: Array.includes vs Set.has vas Map.has

Array includes

Set has

Map has