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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=619463" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Browser:
Chrome 141
Operating system:
Windows
Device Platform:
Desktop
Date tested:
9 months ago
array.shift()
64.2M/s
array.splice()
56.6M/s
array.slice()
11.2M/s
View exact numbers
Test name
Executions per second
✓
array.shift()
64,235,300 Ops/sec
array.splice()
56,619,716 Ops/sec
array.slice()
11,228,355 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()