Changing variable by html button

Question

I\'m learning javascript and I decided to create simple Rock, Paper, Scissors game. I want to make it controllable by buttons. So I made this in html:

Answer 1

var is used for declaring a variable. You don't need to declare user variable again in user function. You just need to assign a value to declared one.

var user; //declaration
function user(choice) {
    user = choice; //assignment
}