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

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 Edg/124.0.0.0

Browser: Chrome 124

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Map.get

28.9M/s

object.a

28.8M/s

object[“0”]

28.8M/s

array[0]

28.4M/s

WeakMap.get

26.5M/s

object[symbol]

15.6M/s

View exact numbers

Script Preparation code:

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

Tests: