Run results for: Unshift vs concat

We can add elements to the beginning of array using both, let's find out which is faster. Unshift also mutates the array. Concat does not, so that would be preferable.

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36
Chrome 121
Windows
Desktop
2 years ago
Test name Executions per second
Unshift 29506.2 Ops/sec
Concat 1023.8 Ops/sec
Script Preparation code:
Tests:

  • Unshift

  • Concat