JSFiddle - React, Tailwind, and code Playground
HTML
<div id='timer'></div>
JavaScript
var second = 10;
var timeOutFunction;
document.getElementById('timer').innerHTML = second;
function setTimer()
{
second--;
document.getElementById('timer').innerHTML = second;
if(second == 0)
clearInterval(timeOutFunction);
}
timeOutFunction = setInterval(setTimer, 1000); //Timer for user display