柯里化

var cost = (function(){
var args = [];

return function(){
console.log(arguments);
if(arguments.length === 0){
console.log(11111);
var money = 0;
for(var i = 0, l = args.length; i < l; i++){
console.log(args);
money += args[i];
}
return money;
}else{
console.log(22222);

[].push.apply(args, arguments);
console.log(args);
}
}
}());

柯里化

原文：https://www.cnblogs.com/MDGE/p/10753780.html