ES6 Usuń pierwszy element tablicy
var myarray = ["item 1", "item 2", "item 3", "item 4"];
//removes the first element of the array, and returns that element.
alert(myarray.shift());
//alerts "item 1"
//removes the last element of the array, and returns that element.
alert(myarray.pop());
//alerts "item 4"
Grumpy Gaur