Question

Possible Duplicate:
Split array into chunks

I am trying to convert an array of values into a new array of paired values.

For example i need to convert:

var arr = [1,2,3,4,5,6,7,8];

into:

arr = [[1,2], [3,4], [5,6], [7,8]];

I tried using jQuery’s .map() method like so but this did not work for me:

arr= $.map(arr, function(n, i){
return [n + ',' + n[ i + 1 ]];
});

Answer 1

If you insist on using map, you could do it like this:

arr= $.map(arr, function(n, i){
    if (i%2 === 0) return [[n, arr[ i + 1 ]]];
});