Benchmark: set.has vs. array.includes vs array.find vs map.has

Script Preparation code:

var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var b = new Set(a)
var c = new Map();
a.forEach(x => c.set(x, x)) // just for test.

Tests:

Rendered benchmark preparation results:

Previous results

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser/OS: Chrome 138 on Mac OS X 10.15.7

Set.has

223.1M/s

Map.has

219.9M/s

Array.find

114.5M/s

Array.includes

111.9M/s

View exact numbers

set.has vs. array.includes vs array.find vs map.has (version: 1) Benchmark.js