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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; rv:121.0) Gecko/20100101 Firefox/121.0
Browser:
Firefox 121
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
Map.get
871310976.0 Ops/sec
WeakMap.get
161164960.0 Ops/sec
array[0]
879211328.0 Ops/sec
object.a
878867328.0 Ops/sec
object[symbol]
851041664.0 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]