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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) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36
Browser:
Chrome 119
Operating system:
Linux
Device Platform:
Desktop
Date tested:
2 years ago
object.a
17.5M/s
Map.get
17.2M/s
array[0]
16.6M/s
WeakMap.get
15.5M/s
object[symbol]
9.4M/s
View exact numbers
Test name
Executions per second
✓
object.a
17,470,172 Ops/sec
Map.get
17,190,656 Ops/sec
array[0]
16,608,083 Ops/sec
WeakMap.get
15,452,163 Ops/sec
object[symbol]
9,390,613 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]