CodePen Training – Mastering CodePen: Building the Code Editor

🔥 In Part 13 of the Mastering CodePen series, we dive into one of the most exciting features—creating a live Code Editor where users can write, preview, and save HTML, CSS, and JavaScript code in real time!

✅ What you’ll learn in this video:
✔️ Setting up a multi-tab code editor UI for HTML, CSS, and JS
✔️ Using <textarea> or contenteditable for writing code
✔️ Integrating CodeMirror or Monaco Editor via CDN for syntax highlighting
✔️ Managing editor state with React + Redux
✔️ Previewing user-written code using an embedded live iframe
✔️ Auto-updating preview with debounced input for performance
✔️ Saving user code to Firestore under project documents
✔️ Loading saved code when editing or re-opening a project

💡 Why This Is a Game-Changer:
🔹 Brings real-time interactivity and creativity into your app
🔹 Combines UI state, code logic, and cloud storage
🔹 Sharpens your understanding of custom IDE logic and rendering
🔹 Lays the foundation for building full-featured coding platforms