Run results for: For vs While and Shift vs Array.slice

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36

Browser: Chrome 95

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Script Preparation code:

var array = ["Rome", "Milan", "Barcelona", "Madrid", "Paris", "Nice", "London", "Manchester"];
var clone = [];

Tests:

Slice
clone = Array.prototype.slice.call(array, 0);
For
for(var i = 0; i < array.length; i++) { clone.push(array[i]); }
While
clone = Array.prototype.slice.call(array, 0); var clone2 = []; while(clone.length > 0) { clone2.push(clone.shift()); }