lib/vendor/sugar.js
function getRange(start, stop, fn, step) {
    var arr = [], i = parseInt(start), down = step < 0;
    while((!down && i <= stop) || (down && i >= stop)) {
      arr.push(i);
      if(fn) fn.call(this, i);
      i += step || 1;
    }
    return arr;
  }
function getRange(start, stop, fn, step) {
    var arr = [], i = parseInt(start), down = step < 0;
    while((!down && i <= stop) || (down && i >= stop)) {
      arr.push(i);
      if(fn) fn.call(this, i);
      i += step || 1;
    }
    return arr;
  }
Number helpers