Sum of integer values in an array using jQuery. Credit: gion_13 Source: http://stackoverflow.com/a/8550489/695454

gistfile1.js

$.sum_arr_int = function (arr) {
    var r = 0;
    $.each(arr, function (i, v) {
        r += v;
    });
    return r;
};

var sum = $.sum_arr_int([20, 40, 80, 400]);

console.log(sum);