jQuery toggleClass example

Toggle class name on click in jQuery

by dont_panic

JavaScript

jQuery(document).ready(function($) {

    let lastActivity = Date.now();
    let now = Date.now();
    let logoutAfter = 3600 * 1000;

    let timer = setInterval(function() {

        now = Date.now(); // <---------------- Your fiddle was missing this line
        let delta = now - lastActivity;
        console.log('New timer loop, now:', now, '; delta:', delta);
    
        if (delta > logoutAfter) {
			alert('logout!');
        }
    }, 1000); 
});