Curry pattern for Functional Programming in Javascript

curry.js

    function curry(fn) {
        let i = 0;
        let countedArg = 0;
        let method = function(arg) {
            return arg;
        };
        let args = [];
        while(i< fn.length) {
            method = (function(fun) {
                return function(...params) {
                    countedArg += params.length;
                    args = [...args, ...params];
                    if(countedArg === fn.length) {
                        return fn.apply(null, args)
                    }
                    return fun;
                };
            })(method);
            i++;
        }
        return method;
    }


const curried1 = curry(function(a,b,c){ return a + b + c; });
    console.log('Total 1:'+ curried1(3)(4,5));

const curried2 = curry(function(a,b,c){ return a + b + c; });
    console.log('Total 2:'+ curried2(1,2,5));

const pow = curry(function(a,b){ return Math.pow(a,b); });
    console.log('Powered Value:'+ pow(2,2));

const pow2 = curry(function(a,b){ return Math.pow(a,b); });
    console.log('Powered Value:'+ pow2(2)(2));