Why is the function called? JavaScript / Window

Question

I have the following code in my HTML file:

Answer 1

Place the semi-colon after the function declaration:

    window.never = function() {
             console.log('this function is never called');
    };

It's because of the (...) directly afterwards that triggers the function call.

    window.never = function() {
             console.log('this function is never called');
    }
    ( ... ) // <-- Triggers call of `window.never`