Question

I’m new to JS.

I’m trying to make a simple button, which will switch numbers from 0 to 11. So if current number is 11 next one(after button click) should be 0. Some kind of numbers chain.

Need help!

Answer 1

Try this. You can change the initial number and maxNumber as per your need.

var number = 0, maxNumber = 12;
$("input").click(function(){
    $('#num').text((number++)%maxNumber);
});

Demo

Alternative approach to make @Tomalak happy :).

var number = 0, maxNumber = 11;
$("input").click(function(){
    number = number >= maxNumber  ? 0: number+1;
    $('#num').text(number);
});

Demo