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Run results for:
Slice vs Splice vs Shift
Compares the speed for removing 2 items from the beginning of an array
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<iframe src="https://measurethat.net/Embed?id=494801" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Linux; Android 10; CLT-L29) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.88 Mobile Safari/537.36
Browser:
Chrome Mobile 100
Operating system:
Android
Device Platform:
Mobile
Date tested:
2 years ago
array.splice()
1.2M/s
array.slice()
944K/s
array.shift()
523K/s
View exact numbers
Test name
Executions per second
✓
array.splice()
1,226,177 Ops/sec
array.slice()
943,927 Ops/sec
array.shift()
523,445 Ops/sec
Script Preparation code:
var array = [1, 2, 3, 4, 5, 6, 7, 8] var itemsToRemove = 2
Tests:
array.slice()
array = array.slice(2)
array.splice()
array.splice(0, itemsToRemove)
array.shift()
for (let i = 0 ; i < itemsToRemove ; i++) array.shift()