Introduction to Modern Web Development

Beginner 5 min read

Welcome to the comprehensive guide for modern web development. This documentation covers everything from basic concepts to advanced patterns used in production applications.

What You'll Learn

Modern JavaScript frameworks and libraries
Component-based architecture patterns
State management and data flow
Performance optimization techniques
Testing and deployment strategies

Prerequisites

This guide assumes basic knowledge of HTML, CSS, and JavaScript. If you're new to web development, consider starting with our Fundamentals Course.

Installation & Setup

Get started by setting up your development environment with the latest tools and frameworks.

1

Install Node.js

Download and install the latest LTS version of Node.js from the official website.

bash

# Verify installation
node --version
npm --version

2

Create New Project

Initialize a new project using modern tooling and best practices.

bash

# Create new React application
npx create-react-app my-app --template typescript
cd my-app
npm start

Best Practices & Guidelines

Code Organization

Use consistent file and folder naming
Group related components together
Separate business logic from UI components
Implement proper error boundaries

Performance

Use React.memo for expensive components
Implement code splitting with lazy loading
Optimize bundle size with tree shaking
Use proper key props in lists

Security

Sanitize user inputs and outputs
Use HTTPS for all API communications
Implement proper authentication
Validate data on both client and server

Accessibility

Use semantic HTML elements
Provide proper ARIA labels
Ensure keyboard navigation support
Maintain sufficient color contrast

Performance Optimization

First Contentful Paint

1.2s

Time until first content appears

Largest Contentful Paint

2.1s

Time until largest content loads

First Input Delay

45ms

Time until page becomes interactive