JSFiddle - React, Tailwind, and code Playground
HTML
<div id="date"></div>
JavaScript
function showdate(){
var date = new Date();
var day = date.getDay();
var name = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"][day];
document.getElementById("date").textContent = name;
console.log('show date');
}
setInterval(showdate, 1000)