MeasureThat.net

Run results for: spread vs concat vs unshift

spread vs concat vs unshift

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.182 Safari/537.36 Edg/88.0.705.81
Chrome 88
Windows
Desktop
4 years ago
Test name Executions per second
arrayUnshift123 30097.1 Ops/sec
arrayConcat123 645.5 Ops/sec
arraySpread123 130.3 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]