Run results for: Array vs Object vs Map vs WeakMap access (3) vs Object key

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

object[“0”]

22.8M/s

object.a

22.7M/s

array[0]

22.7M/s

WeakMap.get

21.5M/s

Map.get

21.5M/s

object[symbol]

12.0M/s

View exact numbers

Script Preparation code:

var map = new Map();
var weakMap = new WeakMap()
var array = [];
var object = {};
var symbol = Symbol('next');

Tests: