Run results for: Array of strings, indexOf vs includes 2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2.1 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

indexOf

120.2M/s

includes

18.6M/s

View exact numbers

Test name	Executions per second
✓ indexOf	120,244,208 Ops/sec
includes	18,626,790 Ops/sec

Tests:

includes
const types = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'] types.includes('e')
indexOf
const types = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'] types.indexOf('e')