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

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/131.0.6778.134 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 131

Operating system: iOS 18.1.1

Device Platform: Mobile

Date tested: one year ago

Map.get

509.4M/s

object[symbol]

463.7M/s

array[0]

457.2M/s

object.a

450.8M/s

WeakMap.get

136.7M/s

View exact numbers

Test name	Executions per second
✓ Map.get	509,355,776 Ops/sec
object[symbol]	463,690,016 Ops/sec
array[0]	457,176,544 Ops/sec
object.a	450,842,784 Ops/sec
WeakMap.get	136,742,624 Ops/sec

Script Preparation code:

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

Tests:

Map.get
map.get("0");
WeakMap.get
weakMap.get("0")
array[0]
array[0]
object.a
object.a
object[symbol]
object[symbol]