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Run results for: spread vs concat vs unshift22

spread vs concat vs unshift

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Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36
Chrome 101
Linux
Desktop
2 years ago
Test name Executions per second
arrayUnshift123 4902694.0 Ops/sec
arrayConcat123 5524.7 Ops/sec
arraySpread123 511.2 Ops/sec
Script Preparation code:
AخA
 
var array = [1,2,3];
Tests:

  • arrayUnshift123

     
    array.slice().unshift(0);

  • arrayConcat123

     
    array = array.concat([0])

  • arraySpread123

     
    array = [0, ...array]