function qsort(data, ascending = true) {
    if (data.length < 2) {
        return data;
    }
    var left = [],
        right = [],
        pivot = data.shift();

    for (var i = 0; i < data.length; i++) {
        if (data[i] < pivot) {
            left.push(data[i]);
        } else {
            right.push(data[i]);
        }
    }
    if (ascending) {
        return qsort(left, ascending).concat([pivot], qsort(right, ascending));
    }
    return qsort(right, ascending).concat([pivot], qsort(left, ascending));
}

function group(list = [], range = null) {
    var bins = {},
        bins_ids = [];

    function to_int(value) {
        var int_val = value + 0;
        if (isNaN(int_val)) {
            throw new Error("InvalidArgumentException");
        }
        return int_val;
    }

    function prepare_list(list) {
        for (var i = 0; i < list.length; i++) {
            list[i] = to_int(list[i]);
        }
        return qsort(list);
    }

    function add_to_bin(bin, item) {
        if (typeof bins[bin] === 'undefined') {
            bins[bin] = [];
            bins_ids.push(bin);
        }
        bins[bin].push(item);
    }

    function get_bin_id(item, range) {
        return parseInt(Math.floor(item/range) + (((item % range) > 0) ? 1 : 0));
    }

    function get_bins() {
        var result = [];
        for (var i = 0; i < bins_ids.length; i++) {
            result.push(bins[bins_ids[i]]);
        }
        return result;
    }

    list = prepare_list(list);

    for (var i = 0; i < list.length; i++) {
        add_to_bin(get_bin_id(list[i], range), list[i]);
    }
    return get_bins();
}

console.log(group([10, 1, -20,  14, 99, 136, 19, 20, 117, 22, 93, 120, 131], 10));
console.log(group([10, 1, -20,  14, 99, 136, 19, 20, 117, 22, 93, 120, 131], 15));
console.log(group([10, 1, 'A', 14, 99, 133, 19, 20, 117, 22, 93, 120, 131], 10));

/*
Result

[ [ -20 ],
  [ 1, 10 ],
  [ 14, 19, 20 ],
  [ 22 ],
  [ 93, 99 ],
  [ 117, 120 ],
  [ 131, 136 ] ]
[ [ -20 ],
  [ 1, 10, 14 ],
  [ 19, 20, 22 ],
  [ 93, 99 ],
  [ 117, 120 ],
  [ 131 ],
  [ 136 ] ]
/Users/alexeysibirtsev/Projects/urbanara/test.js:29
            throw new Error("InvalidArgumentException");
            ^

Error: InvalidArgumentException
    at to_int (/Users/alexeysibirtsev/Projects/urbanara/test.js:29:19)
    at prepare_list (/Users/alexeysibirtsev/Projects/urbanara/test.js:36:23)
    at group (/Users/alexeysibirtsev/Projects/urbanara/test.js:61:12)
    at Object.<anonymous> (/Users/alexeysibirtsev/Projects/urbanara/test.js:71:13)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.runMain (module.js:604:10)
*/