How to fix ‘function arguments error’ in JavaScript?

enter image description here

please tell me that what it is use?
Constraints:

0 <= args.length <= 10

if i add empty {} as parameter it shows error.why?

var createHelloWorld = function(sk) {
    if(sk.length>=0 && sk.lengh<=10)
        return function() {
            return "Hello World";
        }
};

 const f=createHelloWorld();
 f({});

trying to start code in leetcode