Run results for: set.has vs. array.includes vs array.indexOf on big data

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser: Chrome 124

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

lookup

27.7M/s

includes

26.5M/s

indexOf

954K/s

View exact numbers

Script Preparation code:

var a = [];
for(let i = 0; i < 10000; i++){
	a.push(i)
}
var b = new Set(a)

Tests: