MeasureThat.net

Run results for: spread vs concat vs unshift

spread vs concat vs unshift

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
Chrome 104
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
arrayUnshift123 19427.4 Ops/sec
arrayConcat123 337.3 Ops/sec
arraySpread123 61.7 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]