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Run results for:
Map vs Object2
Lookup of map vs object
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<iframe src="https://measurethat.net/Embed?id=517081" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
Browser:
Chrome 123
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
Map lookup
745.4 Ops/sec
Obj lookup
783.2 Ops/sec
Script Preparation code:
var map = new Map(); var obj = {}; var i = 0, count = 10000, a;
Tests:
Map lookup
for (i = 0; i < count; i++) { map.set('a', i); a = map.get('a'); }
Obj lookup
for (i = 0; i < count; i++) { obj['a'] = 5; a = obj['a']; }