Run results for: Array.includes vs String.includes vs Object Hashmap vs Set vs Array.indexOf Large

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_7_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.6 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 16

Operating system: iOS 16.7.2

Device Platform: Mobile

Date tested: 2 years ago

Object Hash-map

9.3M/s

ES6 Set

7.7M/s

Array.includes

6.4M/s

Array.indexOf

5.2M/s

String.includes

4.8M/s

View exact numbers

Test name	Executions per second
✓ Object Hash-map	9,268,924 Ops/sec
ES6 Set	7,731,084 Ops/sec
Array.includes	6,377,168 Ops/sec
Array.indexOf	5,223,906 Ops/sec
String.includes	4,817,376 Ops/sec

Script Preparation code:

var testArray = ['foo', 'a','b', 'c','d','e','f','g','h','i','j', 'k', 'l','m','n' ,'bar','o', 'p', 'q', 'r', 's','t','u', 'v','w','x','y', 'z'];
var testString = testArray.join(',');
var objectHash = testArray.reduce((acc, key) => {acc[key] = true; return acc;},{});
var testSet = new Set(testArray);

Tests: