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Run results for:
Set vs Object vs Map vs array but with strings
Compare the speed to retrieve a value from three data structures that can be used for boolean referencing; i.e. for mapping enabled settings.
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<iframe src="https://measurethat.net/Embed?id=621602" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
Browser:
Chrome 142
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
8 months ago
Set
234.2M/s
Map
228.9M/s
Object
177.3M/s
Array
52K/s
View exact numbers
Test name
Executions per second
✓
Set
234,187,712 Ops/sec
Map
228,874,096 Ops/sec
Object
177,250,592 Ops/sec
Array
51,863 Ops/sec
Script Preparation code:
const array = Array.from({ length: 10000 }, (_, idx) => `${idx}`); const set = new Set(array); const object = Object.fromEntries(array.map((x) => [`${x}`, true])); const map = new Map(Object.entries(object));
Tests:
Set
set.has('0'); set.has('42'); set.has('69'); set.has('9999'); set.has('520'); set.has('1314'); set.has('168'); set.has('19'); set.has('4'); set.has('10000');
Object
'0' in object; '42' in object; '69' in object; '9999' in object; '520' in object; '1314' in object; '168' in object; '19' in object; '4' in object; '10000' in object;
Map
map.has('0'); map.has('42'); map.has('69'); map.has('9999'); map.has('520'); map.has('1314'); map.has('168'); map.has('19'); map.has('4'); map.has('10000');
Array
array.includes('0'); array.includes('42'); array.includes('69'); array.includes('9999'); array.includes('520'); array.includes('1314'); array.includes('168'); array.includes('19'); array.includes('4'); array.includes('10000');