JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://jquery.offput.ca/js/jquery.timers.js"></script>
<button> Start </button>
<div id="no1"> 29 :</div>
<div id="no2"> 60:</div>

JavaScript

$(document).ready(function(){
    $("button").click(function(){
        $("#no1").everyTime('200ms','timer1',timerFunc,10);
        $("#no2").everyTime('250ms','timer2',timerFunc,10);
        $("#no3").everyTime('300ms','timer3',timerFunc,10);                
    });
});

function timerFunc(){
    var ch='@';
    if($(this).attr('id')=='no2') ch='#';
    else if($(this).attr('id')=='no3') ch='$';
    $(this).html($(this).html()+ch);
}