Complete Svelte 5 course

September 23, 2025

A new three-hour Joy of Code’s course offers an in-depth look at Svelte 5 with Vite — from the basics to reactivity, global state, transitions, animations, and integration with external libraries.

joyofcode.xyz/learn-svelte

Tags js learn svelte video

May 14
The HTML Sanitizer API
Browser-native XSS-safe HTML insertion without DOMPurify or other libraries.
May 13
Soon we can finally banish JavaScript to the ShadowRealm
A look at the TC39 ShadowRealm proposal for isolating JavaScript in clean execution contexts.
April 24
Your options for preloading images with JavaScript
Five approaches compared with their caching and CORS trade-offs.
April 20
Fully local code embeds
A web component for isolated code sandboxes without third-party embeds.
April 13
Progressive web components
An HTML-and-CSS-first library for building web components that hydrate with JS.
April 7
Getting your article shared: tips from ten years of newsletter curation
Practical advice on OG tags, sharing images, titles, blurbs, and canonical URLs.
April 2
Squarespace and web standards: how we helped bring HTML video and audio lazy loading to today’s browsers
How Squarespace engineers contributed lazy loading for video and audio to the web platform.
April 1
Native JSON modules are finally real
Import attributes syntax now works in browsers and runtimes without bundlers.