Work with legacy and simple sites using jQuery selectors, events, AJAX, effects, and plugins.
Lessons
Show a button that scrolls smoothly to the top.
Back-to-Top Button is easiest to learn by reading the example, changing it, and observing the result.
$(window).on('scroll', function () {
$('#toTop').toggle($(this).scrollTop() > 300);
});
$('#toTop').on('click', function () {
$('html, body').animate({ scrollTop: 0 }, 400);
});Practice the Back-to-Top Button example in a small scratch file, then explain what changed and why.
In accordance with Section 6 & Section 7 of the DPDP Act 2023, third-party analytics and marketing trackers are strictly gated behind your affirmative consent. You may withdraw consent at any time under Section 6(4).
Essential for session authentication (ci_session), Cross-Site Request Forgery security (csrf_cookie_name), and Cloudflare DDoS/bot prevention. Cannot be disabled.
Gated under DPDP Section 7. Allows Google Analytics 4 (Google Consent Mode v2) to measure aggregate, anonymized tool usage.
Enables browser local storage to preserve your theme selection (dark/light mode) and code editor layout between visits.
Used to display developer sponsorships and native tool partner notices.