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Run results for:
Array = Array.concat(Array) vs Array.push(...Array)
Compares array concatenation via the classic "concat" method and the "push" with a spread operator.
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<iframe src="https://measurethat.net/Embed?id=576024" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0
Browser:
Firefox 133
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Array.Concat(Array)
2104.1 Ops/sec
Array.push(...Array)
3830931.2 Ops/sec
Script Preparation code:
let baseArray = [1, 2, 3, 4]; const newNeighbors = [5, 6, 7, 8, 9, 0];
Tests:
Array.Concat(Array)
baseArray = baseArray.concat(newNeighbors);
Array.push(...Array)
baseArray.push(...newNeighbors);