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Run results for:
Map vs object for deletions
Checks the performance of deletions and additions to Maps vs objects
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<iframe src="https://measurethat.net/Embed?id=592908" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3.1 Safari/605.1.15
Browser:
Safari 18
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Delete from object
361.4M/s
Add to object
336.7M/s
Delete from Map
104.5M/s
Add to Map
103.0M/s
View exact numbers
Test name
Executions per second
✓
Delete from object
361,371,680 Ops/sec
Add to object
336,685,792 Ops/sec
Delete from Map
104,450,584 Ops/sec
Add to Map
103,044,192 Ops/sec
Script Preparation code:
var testMap = new Map(); var testObj = {};
Tests:
Add to Map
testMap.set('testKey', 1);
Add to object
testObj.testKey = 1;
Delete from Map
testMap.delete('testKey');
Delete from object
delete testObj.testKey;