最常用地方：react-redux的connect函数

    1. // 支持多参数传递
    2. var processCurry = function (fn, args) {
    3.     var self = this
    4.     var len = fn.length
    5.     var args = args || []
    6.     return function () {
    7.         var _args = Array.prototype.slice.call(arguments)
    8.         var arg = args.concat(_args);
    9.         if (arg.length < len) {
    10.             return processCurry.call(self, fn, arg)
    11.         }
    13.         return fn.apply(self, arg)
    14.     }
    15. }
    17. var add = function (a, b, c, d) {
    18.     console.log(a + b + c + d);
    19.     return a + b + c + d
    20. }
    22. var addCurry = processCurry(add)
    23. addCurry(1)(2, 3)(4)