JSFiddle - React, Tailwind, and code Playground

by kidino

HTML

<div id="x"></div>

JavaScript

var items = 10;
var startat = items - 1; // make starts at 0
var doubler = items * 2;

function showa(){
    startat++;
    b = startat % doubler;
    c = items - b;
    $('#x').append(startat + ' - '+b+' - '+Math.abs(c)+'<br />');
    setTimeout(showa,1000);
}

setTimeout(showa, 1000);