Run results for: Set vs Array for unique list (convert set to array) 2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Set

21K/s

Unique Array

8K/s

Arr 2

6K/s

View exact numbers

Script Preparation code:

var a = Array(1000).fill(null).map((a, b) => b);

Tests:

Unique Array
var b = []; a.forEach(x => { if (a.indexOf(x) < 0) a.push(x); }); a.map(x => x);
Set
var c = new Set(); a.forEach(x => c.add(x)); var b = Array.from(a); b.map(x => x);
Arr 2
var b = []; a.forEach(x => { if (a.indexOf(x) === -1) a.push(x); }); a.map(x => x);