Script Preparation code:
AخA
 
var list = [];
for (var i = 0; i < 1000 * 1000; i++) {
  list.push(i);
}
Tests:
  • slice

     
    list.push('slice');
    list = list.slice(0, 1000 * 1000 / 2);
  • splice

     
    list.push('splice');
    list.splice(0, 1000 * 1000 / 2);
  • shift

    x
     
    list.push('shift');
    for (var i = 0; i < 1000 * 1000 / 2; i++) {
      list.shift();
    }
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    slice
    splice
    shift

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 3 years ago)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Safari/605.1.15
Safari 14 on Mac OS X 10.15.6
View result in a separate tab
Test name Executions per second
slice 392.6 Ops/sec
splice 3851626.8 Ops/sec
shift 21.4 Ops/sec