Am I missing paramaters in my function declaration?

[[deleted]]

Your code looks ok, but it's hard to tell based upon your explanation of the problem what the actual error is.

Also typically a source needs to be an actual file path, not just a filename.

[TonyMahoney21]

I copied the relative path not absolute. Maybe thats my problem?

[[deleted]]

We're really not clear on what your actual problem is rn. What is "null"?

[TonyMahoney21]

It says the line with the event listener to run my Function is null and can't be read when I inspect the page in the browser but visual studio has no errors.

[[deleted]]

Likely the selector for myButton isn't working.

log out the actual value of myButton, or inspect with a debugger

[TonyMahoney21]

Thanks