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Run results for:
Concat vs Spread (Two Arrays)
Compare the new ES6 spread operator with the traditional concat() method
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<iframe src="https://measurethat.net/Embed?id=615364" 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/139.0.0.0 Safari/537.36
Browser:
Chrome 139
Operating system:
Windows
Device Platform:
Desktop
Date tested:
8 months ago
Test name
Executions per second
spread operator
38492340.0 Ops/sec
concat into empty array
13796088.0 Ops/sec
Script Preparation code:
var array1 = [ "hella", true, 7 ] var array2 = ["hallo", false, 5];
Tests:
spread operator
var other = [ ...array1, ...array2 ]
concat into empty array
var final = array1.concat(array2)