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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 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Browser:
Chrome 127
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Map.get
27.7M/s
object.a
26.9M/s
array[0]
26.9M/s
WeakMap.get
25.2M/s
object[symbol]
14.0M/s
View exact numbers
Test name
Executions per second
✓
Map.get
27,719,876 Ops/sec
object.a
26,904,168 Ops/sec
array[0]
26,852,160 Ops/sec
WeakMap.get
25,244,110 Ops/sec
object[symbol]
14,010,851 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]