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Run results for: spread vs concat vs unshift (v96)

spread vs concat vs unshift

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36
Chrome 89
Windows
Desktop
4 years ago
Test name Executions per second
arrayUnshift123 41567.3 Ops/sec
arrayConcat123 550.5 Ops/sec
arraySpread123 205.4 Ops/sec
Script Preparation code:
AخA
 
var array = [1,2,3];
Tests:

  • arrayUnshift123

     
    array.unshift(0);

  • arrayConcat123

     
    array = [0].concat(array)

  • arraySpread123

     
    array = [0, ...array]