Run results for: slice VS splice VS shift: who is the fastest to keep constant size (fork)

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:83.0) Gecko/20100101 Firefox/83.0

Browser: Firefox 83

Operating system: Windows 7

Device Platform: Desktop

Date tested: 4 years ago

Script Preparation code:

var list = [];
for (var i = 0; i < 1000 * 1000; i++) {
  list.push(i);
}

AخA
 
var list = [];for (var i = 0; i < 1000 * 1000; i++) {  list.push(i);}

Tests:

slice
list.push('slice'); list.slice(0, 1);
list.push('slice');
list.slice(0, 1);
splice
list.push('splice'); list.splice(0, 1);
list.push('splice');
list.splice(0, 1);
shift
list.push('splice'); list.shift();
list.push('splice');
list.shift();