Benchmark: Array vs Set 2384

Script Preparation code:

var myArray = [];
var mySet = new Set();

Tests:

Set
// Add for (let i = 0; i < 5000; i++) { mySet.add(i); } // Has for (let i = 0; i < 5000; i++) { mySet.has(i); } // Delete for (let i = 0; i < 5000; i++) { mySet.delete(i); }
Array
// Push for (let i = 0; i < 5000; i++) { myArray.push(i); } // Includes for (let i = 0; i < 5000; i++) { myArray.includes(i); } // Remove for (let i = 0; i < 5000; i++) { delete myArray[i]; }

Rendered benchmark preparation results:

Previous results

Test case name	Result
Set
Array

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 YaBrowser/25.6.0.0 Safari/537.36

Browser/OS: Yandex Browser 25 on Windows

Set

4K/s

Array

203/s

View exact numbers

Test name	Executions per second
✓ Set	4,032 Ops/sec
Array	203 Ops/sec

Array vs Set 2384 (version: 0)