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Run results for: spread vs concat vs unshift

spread vs concat vs unshift

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0
Firefox 63
Windows
Desktop
6 years ago
Test name Executions per second
arrayUnshift123 588622.4 Ops/sec
arrayConcat123 24.9 Ops/sec
arraySpread123 17.2 Ops/sec
Script Preparation code:
AخA
 
var array = [1,2,3];
Tests:

  • arrayUnshift123

     
    array.unshift(0);

  • arrayConcat123

     
    array = array.concat([0])

  • arraySpread123

     
    array = [0, ...array]