Remove Listener from Button via Script

Questions & Answers
1

I added a Listener even to my buttons using this:

Button b = GetComponent();
b.onClick.AddListener(() => {GoTo(MenuState.Categories);});

I want to be able to change the function of the button later. If I add another Listener I’ll just have 2 calls instead of 1. So how can I clear the Listener list on the button?

2

Either :

for one or:

for all.