How do you make functions by clicking a button?

Answer 1

Html

<Button onclick="fun()" ></button>

Js

Function fun(){
Alert(" working")
}

*Note it will not work if mistake in function name

Answer 2

https://code.sololearn.com/Wi6OJsQ4a8H6/?ref=app

EMTER ANGRY BIRDS Nisos you have to write a name to display button

copy this code I may remove it