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Delete performance
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<iframe src="https://measurethat.net/Embed?id=622092" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Mobile Safari/537.36 EdgA/142.0.0.0
Browser:
Chrome Mobile 142
Operating system:
Android
Device Platform:
Mobile
Date tested:
5 months ago
Test name
Executions per second
removeNullish
12.4 Ops/sec
delete
4.3 Ops/sec
Create Array
18.8 Ops/sec
Tests:
removeNullish
const arr = new Array(500000).fill(null).map(() => ({ "item": 42 })) const removeNullish = (obj) => Object.entries(obj).reduce((a, [k, v]) => (v ? ((a[k] = v), a) : a), {}) arr.forEach(object => { object.item = undefined removeNullish(object) })
delete
const arr = new Array(500000).fill(null).map(() => ({ "item": 42 })) arr.forEach(object => { delete object.item })
Create Array
const arr = new Array(500000).fill(null).map(() => ({ "item": 42 })) const removeNullish = (obj) => Object.entries(obj).reduce((a, [k, v]) => (v ? ((a[k] = v), a) : a), {})