JSFiddle - React, Tailwind, and code Playground

by wrxsti85

JavaScript

// This code will not work in JSFIDDLE!
// You will need to paste this into a test document,
// or into an active page's console to test.
// This code could also be extended to actively
// change the favicon to an alert symbol.

var toggle = false;
var title = document.title;
var start = setInterval(function() {
    if (toggle) {
        document.title = 'You have a message'
    } else {
        document.title = title;
    }
    toggle = !toggle;
}, 1000);

// Run clearInterval(start) to end the message loop