Run results for: Array vs Set loopup in Javascript

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser: Chrome 124

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Array.prototype.includes	26261336.0 Ops/sec
Set.prototype.has	27952500.0 Ops/sec

Script Preparation code:

var arr = [];
var i = 0;

while (i <= 1E5) arr.push(++i);
var set = new Set(arr);

​x
 
var arr = [];var i = 0;​while (i <= 1E5) arr.push(++i);var set = new Set(arr);

Tests:

Array.prototype.includes
const isExits = arr.includes(1E5)
const isExits = arr.includes(1E5)
Set.prototype.has
const isExits = set.has(1E5)
const isExits = set.has(1E5)