Question

I try to use code from this Move an array element from one array position to another to move arrays position

But why when i will move last to first so I get a empty array

i do like this…

my_array.move(my_array_length,0);

Demo : http://jsfiddle.net/Jsu7R/

Answer 1

Since javascript arrays are indexed from 0 upwards, your code:

my_array.move(my_array_length,0);

will need to change to :

my_array.move(my_array_length-1,0);

The length of your array has 5 elements, but the last element has an index of 4.