why do i do this kind of thing

wat.js

(function() {
  var $=['_'].concat(Array(arguments.length-1),'return _');
  var _=Function.apply(null,$);
  $.forEach.call(arguments,function($,$$){_[$$]=$});
  return $.map.bind.call($.map,_,_);
}(5,6,7,8))()

Well, I admire the complexity! 😄