Why do we have to add Null here?

Question

myFunction.apply(null, args.concat(4));
Why do we have to add null here to not cause an error?

Answer 1

this is in python isn't it?

Answer 2

the function you have probably expects a object and if it doesn't get it, an error occurs.
null can be parsed instead of an object

Answer 3

function myFunction(w, x, y ,z){
console.log(w + x + y + z)
}

//is the fuction