JavaScript

10 JavaScript DOM Coding Games — Learn by Building Fun Mini Projects

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Github https://github.com/lsvekis/10-JavaScript-DOM-Coding-Games-Learn-by-Building-Fun-Mini-Projects/ https://discoveryvip.com/games.html see them live JavaScript and the Document Object Model (DOM) form the foundation of every interactive web page. The best way to truly master them is to build something — and that’s exactly what these ten small games are designed to help you do. Each exercise is fully self-contained, runs right in … Read more

JavaScript DOM Coding Exercises

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41) Canvas Signature Pad + Save PNG — exercise41_signature_pad.html <!doctype html> <html lang=”en”> <head> <meta charset=”utf-8″> <title>Signature Pad — Canvas + Pointer Events</title> <!– Build: Simple signature/drawing pad using <canvas> + Pointer Events with Save PNG. Objectives: – Use pointerdown/move/up/cancel to draw smooth lines on a canvas. – Handle DPR (devicePixelRatio) for crisp rendering. – … Read more

JavaScript DOM Coding Exercises

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31) MutationObserver: Live DOM Change Log Build: A playground that logs DOM changes (add/remove nodes, attribute/text changes) from a target container in real time.Objectives: 32) IntersectionObserver: Lazy Images + Sentinels Build: A grid of 60 images that load only when they approach the viewport; a sentinel at the end indicates “end reached.”Objectives: 33) Drag & … Read more

JavaScript DOM Coding Exercises with code and images

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11) Tabs Component (ARIA) Build: Keyboard-accessible tab interface with ARIA roles/states and panels.Objectives: 12) Accordion (ARIA) Build: Single-expand/collapse FAQ-style accordion with semantic buttons and ARIA linkage.Objectives: 13) Live Search with Debounce Build: Product cards filtered by a debounced input; matches highlighted.Objectives: 14) Countdown + Progress Bar Build: 10-second timer that updates a <progress> bar and … Read more

Learn JavaScript 10 Exercises with Code

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Download PDF Download Source Code 21) DOM Traversal Visualizer Build: Click any nested element to highlight the target, its ancestors, and its siblings, and show the path to root.Objectives: closest, parents/children/siblings, DOM introspection.Steps: Open file → click around the left “tree” → watch highlights and path update.Code (save as exercise21_traversal.html) <!doctype html> <html lang=”en”> <head> … Read more

10 JavaScript DOM coding exercises

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Source code Each one includes: what you’ll build, learning objectives, step-by-step instructions, a single self-contained HTML file (copy–paste into a .html file and open in a browser), and a short breakdown of how the code works. 1) Select, Read, and Update DOM Content, Attributes, and Styles What you’ll build: A tiny product list with buttons … Read more

JavaScript DOM Coding Exercises

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The Document Object Model (DOM) is a programming interface for web documents. It represents the page so that programs can change the document structure, style, and content. The following exercises are designed to help you understand and practice key DOM manipulation concepts. Exercise 1: Selecting Elements Objective: Learn how to select single and multiple elements … Read more

Welcome to Vibe Coding: Your JavaScript Journey with an AI Partner

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Imagine learning to code not from a static textbook, but with a personal tutor available 24/7. A tutor that can explain complex ideas in simple terms, write code examples on the fly, help you fix bugs, and brainstorm project ideas with you. That’s the essence of Vibe Coding—using AI assistants like Gemini or ChatGPT as … Read more

Learn to Code with Your AI Sidekick: Building Your First Website

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Download PDF Guide Welcome to the exciting world of web development! You’re about to learn how to build websites from scratch. But you won’t be doing it alone. This guide is built around a revolutionary idea: using Artificial Intelligence (AI) like Gemini or ChatGPT as your personal tutor, coding partner, and creative assistant. Think of … Read more

100 of the most common JavaScript questions developers ask when working with AI

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Artificial Intelligence (AI) is reshaping how we build applications. JavaScript—already the language of the web—is increasingly becoming the glue that connects AI models, APIs, and interactive user experiences. But if you’re building AI-powered projects with JavaScript, you’ll run into dozens of “how do I…” questions every day. That’s why I’ve put together this guide: 100 … Read more