Function bound

demo/js/main.js:1863–1866

(/* args... */)

    var fn       = aFunction(this)
      , partArgs = _slice.call(arguments, 1);
    var bound = function(/* args... */){
      var args = partArgs.concat(_slice.call(arguments));
      return this instanceof bound ? construct(fn, args.length, args) : invoke(fn, args, that);
    };
    if(isObject(fn.prototype))bound.prototype = fn.prototype;
    return bound;
  }