javascript - Function calling 2 ways with multiple arguments -

as of know can create simple function this.

function calc(a,b){    return a+b } calc(1,1); //returns 2 

we can make this

function calc(a){     return function(b){       return a+b     } } calc(1)(1); //returns 2 

what if had multiple arguments?

function calc() {     function r(arg) {         var = [];         for(var = 0, l = arg.length; < l; i++){             a[i] = arg[i];         }          return a.reduce(function(p, c) {           return p + c;         });      }     var res = r(arguments);     return function() {         res += r(arguments);         return res;     } } 

this works calc(1,2)(1) doesn't calc(1,2,1)

is there way combine both versions? means when calling calc(1,1) call calc(1)(1) , both still return 2.

or calc(1,2,3) calc(1,2)(3) calc(1)(2,3) return 6

it needs know how many arguments calculation after ;-)

you can make function turns things sort of function :

function curry(f){    var args = [];    return addargs;    function addargs(){      args=args.concat([].slice.call(arguments));      return args.length<f.length? addargs.bind(this) : f.apply(this,args);    }  }

then can :

var calc = curry(function(a,b,c){return a+b+c});  calc(1,2)(3); // = 6

but can't have take variable number of arguments and curry - wouldn't know when return answer