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Run results for:
Array vs Object vs Map vs WeakMap access (3)
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Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 16_0_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.0 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 16
Operating system:
iOS 16.0.3
Device Platform:
Mobile
Date tested:
2 years ago
array[0]
10.3M/s
object.a
10.2M/s
Map.get
10.0M/s
WeakMap.get
9.6M/s
object[symbol]
5.3M/s
View exact numbers
Test name
Executions per second
✓
array[0]
10,304,835 Ops/sec
object.a
10,235,654 Ops/sec
Map.get
10,047,723 Ops/sec
WeakMap.get
9,562,506 Ops/sec
object[symbol]
5,262,566 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]