Run results for: index vs map111

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Browser: Chrome 129

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

1.2M/s

866K/s

View exact numbers

Test name	Executions per second
✓ 1	1,230,218 Ops/sec
2	866,283 Ops/sec

Script Preparation code:

var myArray = ['a', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1', 1, 'a', 2, '1'];

Tests:

1
var unique = myArray.filter((value, index, array) => array.indexOf(value) === index);
2
let map = {}; myArray.forEach(v => { map[v]=true }) Object.keys(map);