Run results for: Array.includes vs OR operator

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

OR operator

41K/s

Array.includes

12K/s

Array.includes (cached array)

11K/s

View exact numbers

Script Preparation code:

var data = [...Array(10000)].map((_, i) => [i, i]);
var cachedArray = ['a', 'b', 'c', 'd', 'e', 'f'];
var g = 'g';

Tests:

Array.includes
data.forEach(() => { return ['a', 'b', 'c', 'd', 'e', 'f'].includes(g); });
Array.includes (cached array)
data.forEach(() => { return cachedArray.includes(g); });
OR operator
data.forEach(() => { return 'a' === g || 'b' === g || 'c' === g || 'd' === g || 'e' === g || 'f' === g; });