Run results for: Map vs object for deletions - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0

Browser: Firefox 103

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Add to Map	39207400.0 Ops/sec
Add to object	1500370432.0 Ops/sec
Delete from Map	51636568.0 Ops/sec
Delete from object	43863836.0 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;

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