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Run results for: Array remove item using Array.concat vs array spread

Remove an item in the middle of an array of length 1000000 using either Array.concat or array spread

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.83 Safari/537.36
Chrome 85
Mac OS X 10.15.5
Desktop
3 years ago
Test name Executions per second
Using array.concat 271.8 Ops/sec
Using array.spread 101.5 Ops/sec
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Script Preparation code:
Tests:

  • Using array.concat

  • Using array.spread