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name: frontend-guide description: Comprehensive frontend development guide covering HTML, CSS, JavaScript, TypeScript, React, Vue, Angular, and modern web technologies. Use when working on frontend development, web applications, or UI/UX implementation. sasmp_version: "1.3.0" bonded_agent: 01-frontend-specialist bond_type: PRIMARY_BOND eqhm_enabled: true

Frontend Development Guide

Master modern frontend development with comprehensive learning resources and best practices.

Quick Start

Start your frontend journey based on your experience level:

Beginners

1. Learn HTML fundamentals - semantic markup, forms, accessibility
2. Master CSS - layout (Flexbox, Grid), responsive design, animations
3. JavaScript basics - variables, functions, DOM manipulation, async/await
4. Git and version control
5. Deploy first project to GitHub Pages

<!-- Semantic HTML5 Example -->
<header>
  <nav>Navigation</nav>
</header>
<main>
  <article>
    <h1>Article Title</h1>
    <p>Content here</p>
  </article>
</main>
<footer>Footer content</footer>

Intermediate

1. Modern JavaScript (ES6+) - classes, modules, promises
2. Learn a framework (React, Vue, or Angular)
3. State management (Context API, Redux, Vuex)
4. API integration with REST and GraphQL
5. Testing (Jest, Vitest, Cypress)
6. Build tools (Webpack, Vite)

// React Hooks Example
import { useState, useEffect } from 'react';

function TodoList() {
  const [todos, setTodos] = useState([]);

  useEffect(() => {
    // Fetch todos on component mount
    fetchTodos();
  }, []);

  return (
    <ul>
      {todos.map(todo => <li key={todo.id}>{todo.title}</li>)}
    </ul>
  );
}

Advanced

1. Next.js/Vue Nuxt for SSR and static generation
2. TypeScript for type-safe code
3. Advanced state management patterns
4. Performance optimization (code splitting, lazy loading)
5. Web performance APIs
6. Progressive Web Apps (PWA)
7. Design systems and component libraries

Technology Stack Overview

Core Technologies

• HTML5: Semantic markup, forms, APIs
• CSS3: Flexbox, Grid, animations, transitions
• JavaScript/TypeScript: ES6+, async patterns

Popular Frameworks

• React: Component-based, JSX, hooks, ecosystem
• Vue: Progressive framework, simple API, great docs
• Angular: Enterprise framework, full-featured, opinionated

State Management

• React: Context API, Redux, Zustand, Jotai
• Vue: Vuex, Pinia (recommended)
• Angular: RxJS, NgRx

Build Tools & Package Managers

• npm: Default package manager
• Yarn/pnpm: Alternative package managers
• Webpack: Module bundler
• Vite: Modern, fast build tool
• Turbopack: High-performance bundler

Testing Tools

• Jest: JavaScript testing framework
• Vitest: Vite-native unit testing
• Cypress: E2E testing
• Playwright: Cross-browser testing
• Testing Library: Component testing

Learning Resources

Official Documentation

• MDN Web Docs - Authoritative reference
• React Documentation - React official docs
• Vue Documentation - Vue official docs
• Web.dev by Google - Modern web platform features

Interactive Learning

• Codecademy: Interactive courses
• FreeCodeCamp: Free comprehensive tutorials
• Frontend Masters: Advanced frontend courses
• Egghead: Focused micro-courses

Practice Projects

1. Todo App - CRUD operations, state management
2. Weather App - API integration, real-world data
3. E-commerce Product Page - Complex UI, interactions
4. Blog Platform - Full app with routing and data
5. Dashboard - Data visualization, real-time updates

Performance Optimization

Key Metrics

• Lighthouse Score (SEO, Performance, Accessibility)
• Core Web Vitals (LCP, FID, CLS)
• Time to Interactive (TTI)

Optimization Techniques

• Code splitting and lazy loading
• Image optimization (WebP, responsive images)
• Minification and tree-shaking
• Service workers and caching strategies
• CSS-in-JS optimization
• Component memoization

Accessibility (A11y)

WCAG Guidelines

• Semantic HTML
• ARIA labels and roles
• Keyboard navigation
• Color contrast ratios
• Screen reader compatibility

Deployment

Static Hosting

• Vercel - Best for Next.js and frameworks
• Netlify - Simple deployment
• GitHub Pages - Free static hosting

Full-Stack Hosting

• AWS Amplify
• Firebase Hosting
• DigitalOcean

Next Steps

1. Choose a framework that resonates with you
2. Build 3-5 substantial projects
3. Contribute to open-source frontend projects
4. Learn testing and best practices
5. Explore advanced topics (performance, architecture)

Roadmap.sh Reference: https://roadmap.sh/frontend

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Status: ✅ Production Ready | SASMP: v1.3.0 | Bonded Agent: 01-frontend-specialist