Benchmark: Map vs Array vs Object vs Set add item speed in 50000 iters 2

Tests:

Map
let randomU32 = function() { return Math.random() * (1 << 31) >>> 0; } let map = new Map(); for (let i = 0; i <= 50000; i++) { map.set(randomU32(), true); }
Array
let randomU32 = function() { return Math.random() * (1 << 31) >>> 0; } let arr = []; for (let i = 0; i <= 50000; i++) { arr[randomU32()] = true; }
Object
let randomU32 = function() { return Math.random() * (1 << 31) >>> 0; } let obj = {}; for (let i = 0; i <= 50000; i++) { obj[randomU32()] = true; }
Set
let randomU32 = function() { return Math.random() * (1 << 31) >>> 0; } let set = new Set(); for (let i = 0; i <= 50000; i++) { set.add(randomU32()); }

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (iPad; CPU OS 14_8 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/96.0.4664.53 Mobile/15E148 Safari/604.1

Browser/OS: Chrome Mobile iOS 96 on iOS 14.8

Map vs Array vs Object vs Set add item speed in 50000 iters 2 (version: 0)