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Run results for:
Slice vs Splice vs Shift (Large Array)
Compares the speed for removing 2 items from the beginning of an array
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<iframe src="https://measurethat.net/Embed?id=608422" 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/136.0.0.0 Safari/537.36 Edg/136.0.0.0
Browser:
Chrome 136
Operating system:
Windows
Device Platform:
Desktop
Date tested:
11 months ago
Test name
Executions per second
array.slice()
10939747.0 Ops/sec
array.splice()
52409620.0 Ops/sec
array.shift()
227962.9 Ops/sec
Script Preparation code:
var array = Array(3000).fill(0) var itemsToRemove = 1000
Tests:
array.slice()
array = array.slice(2)
array.splice()
array.splice(0, itemsToRemove)
array.shift()
for (let i = 0 ; i < itemsToRemove ; i++) array.shift()