What is the difference between onclick="javascript:myfun()" and onclick="myfun()"

Question

I have been doing some research but I have failed to find a satisfying answer for this.

Answer 1

Nothing. javascript:myfun() would call the function myfun() whilst myfun() would call the function myfunc()

Answer 2

Yep, no difference, I'm not sure but I think you can also do php: or something, it woulf be pointless if they add javascript: if theres no other languages included

Answer 3

meaning there is no difference