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Run results for:
Set constructor from array.map vs array.forEach(.add)
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Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Browser:
Chrome 134
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
new Set
16.2 Ops/sec
.add
15.4 Ops/sec
Script Preparation code:
let sourceArray = [] for(let i=1; i<1000000; i++) { sourceArray.push(i) }
Tests:
new Set
const setObject = new Set(sourceArray.map(x => x))
.add
const setObject = new Set() sourceArray.forEach(x => setObject.add(x))