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Run results for:
Array.prototype.concat vs spread operator 12
Compare the new ES6 spread operator with the traditional concat() method
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36
Browser:
Chrome 121
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
spread operator
42.3M/s
Array.prototype.concat
16.9M/s
View exact numbers
Test name
Executions per second
✓
spread operator
42,269,084 Ops/sec
Array.prototype.concat
16,864,912 Ops/sec
Tests:
Array.prototype.concat
[ 1, 2 ].concat([ "hello", true, 7 ]);
spread operator
[ ...[ 1, 2 ], ...[ "hello", true, 7 ] ]