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/605.1.15 (KHTML, like Gecko) Version/16.6 Safari/605.1.15

Browser: Safari 16

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Map.get

13.7M/s

array[0]

13.0M/s

WeakMap.get

12.8M/s

object.a

9.3M/s

object[“0”]

9.3M/s

object[symbol]

6.9M/s

View exact numbers

Script Preparation code:

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

Tests: