Run results for: Large Array Case-Insensitive String Filtering

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Browser: Chrome 87

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
toLowerCase and indexOf	26494.6 Ops/sec
regex case-insensitive flag	27489.2 Ops/sec

Tests:

toLowerCase and indexOf
const array = new Array(1000).fill(null).map(() => 'no match found').concat(['Bingo', 'BINGO', 'bingo', 'Bingo', 'bingo']); array.filter(i => i.toLowerCase().indexOf('bingo') !== -1);
regex case-insensitive flag
const array = new Array(1000).fill(null).map(() => 'no match found').concat(['Bingo', 'BINGO', 'bingo', 'Bingo', 'bingo']); array.filter(i => i.match(/bingo/i));