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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 (X11; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0
Browser:
Firefox 135
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
array[0]
2693.9M/s
Map.get
2667.9M/s
object[symbol]
2610.1M/s
object.a
2561.5M/s
WeakMap.get
158.4M/s
View exact numbers
Test name
Executions per second
✓
array[0]
2,693,923,072 Ops/sec
Map.get
2,667,860,736 Ops/sec
object[symbol]
2,610,086,400 Ops/sec
object.a
2,561,502,720 Ops/sec
WeakMap.get
158,374,064 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]