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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 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36 Edg/123.0.0.0
Browser:
Chrome 123
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Map.get
27.4M/s
object.a
27.1M/s
array[0]
26.7M/s
WeakMap.get
25.1M/s
object[symbol]
14.7M/s
View exact numbers
Test name
Executions per second
✓
Map.get
27,367,374 Ops/sec
object.a
27,123,712 Ops/sec
array[0]
26,668,298 Ops/sec
WeakMap.get
25,050,330 Ops/sec
object[symbol]
14,682,116 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]