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Run results for:
Slice vs Splice vs Shift 231
Compares the speed for removing 2 items from the beginning of an array
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<iframe src="https://measurethat.net/Embed?id=504387" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 16_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.1 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 16
Operating system:
iOS 16.1.1
Device Platform:
Mobile
Date tested:
2 years ago
array.shift()
10.5M/s
array.splice()
5.2M/s
array.slice()
5.2M/s
View exact numbers
Test name
Executions per second
✓
array.shift()
10,478,189 Ops/sec
array.splice()
5,206,802 Ops/sec
array.slice()
5,203,513 Ops/sec
Script Preparation code:
var array = [1, 2, 3, 4, 5, 6, 7, 8] var itemsToRemove = 1
Tests:
array.slice()
array = array.slice(1)
array.splice()
array.splice(0, itemsToRemove)
array.shift()
array.shift()