How to create copy of array? [duplicate]

Question

I have array:

var array = ["a", "b", "c"];

I need save this array to another variable

var save = array;

Now I need splice from save first index but when I try it, the index is removed from both arrays.

var array = ["a", "b", "c"];
var save = array;

save.splice(0, 1);
console.log(array);
console.log(save);

Answer 1

You need to copy the array using Array#slice otherwise save holds the reference to the original array(Both variables are pointing to the same array).

var save = array.slice();

var array = ["a", "b", "c"];
var save = array.slice();

save.splice(0, 1);
console.log(array);
console.log(save);