Table of Contents

1. Introduction

2. The Challenges of Modern Frontend Development

3. TypeScript: Building a Strong Foundation

   • Understanding TypeScript
   • Advanced TypeScript Features
   • TypeScript Best Practices

4. ESLint and Prettier: Ensuring Code Quality and Consistency

   • Deep Dive into ESLint
   • Advanced ESLint Configurations
   • Mastering Prettier
   • Integrating ESLint and Prettier Seamlessly

5. Husky: Automating Your Git Workflow

   • Advanced Git Hooks with Husky
   • Leveraging Husky for Team Collaboration

6. Conventional Commits: Communicating Through Commits

   • Commitlint and Commitizen: Streamlining Commit Messages
   • Automating Changelogs

7. Changesets and Semantic Versioning: Managing Releases

   • Automating Versioning
   • Best Practices for Release Management

8. CI/CD Pipelines with AWS and TeamCity

   • Understanding CI/CD Principles
   • Advanced TeamCity Configurations
   • Optimizing AWS Deployments

9. Enhancing Developer Experience and Productivity

   • Integrating Development Tools
   • Boosting Team Productivity

10. Clean Code Principles

    • Writing Maintainable Code
    • Refactoring Strategies

11. Case Studies and Practical Examples

    • Real-World Implementation
    • Troubleshooting Common Issues

12. Future Trends in Frontend Development

    • Emerging Tools and Technologies
    • Preparing for the Future

13. Conclusion

14. Additional Resources

Introduction

We’ll cover:

• TypeScript for strong typing and improved code quality.
• ESLint and Prettier for enforcing coding standards.
• Husky for automating Git workflows.
• Conventional Commits for standardized commit messages.
• Changesets and Semantic Versioning for managing releases.
• CI/CD pipelines with AWS and TeamCity for automated deployments.
• Developer experience and productivity enhancements.
• Clean code principles for maintainable codebases.

The Challenges of Modern Frontend Development

• Scaling Codebases: As projects grow, maintaining readability and organization becomes difficult.
• Team Collaboration: Ensuring that all team members follow the same coding standards.
• Continuous Integration and Deployment: Automating testing and deployment processes.
• Code Quality: Preventing bugs and ensuring that code is maintainable.
• Productivity: Reducing time spent on repetitive tasks.

TypeScript: Building a Strong Foundation

TypeScript

Key Features:

• Static Typing: Define types for variables, function parameters, and object properties.
• Interfaces and Types: Define custom types and interfaces for complex data structures.
• Enums: Create named constants.
• Generics: Write reusable code components that work with any data type.
• Decorators: Add annotations and metadata to classes and methods.

Advanced TypeScript Features

Generics

function identity<T>(arg: T): T {
  return arg;
}

let output = identity<string>("Hello World");

Decorators

Decorators provide a way to add annotations and a meta-programming syntax.

  console.log(`New instance of ${target.name}`);
}

@Log
class Person {
  constructor(public name: string) {}
}``

npm install --save-dev @types/react @types/react-dom

{
  "rules": {
    "no-console": "warn",
    "eqeqeq": "error",
    "@typescript-eslint/no-unused-vars": ["error", { "argsIgnorePattern": "^_" }]
  }
}

npm install --save-dev eslint-plugin-react eslint-plugin-jsx-a11y eslint-plugin-import

"plugins": ["@typescript-eslint", "react", "jsx-a11y", "import"]

"extends": [
  "eslint:recommended",
  "plugin:@typescript-eslint/recommended",
  "plugin:react/recommended",
  "plugin:jsx-a11y/recommended",
  "plugin:import/errors",
  "plugin:import/warnings",
  "plugin:prettier/recommended"
]

"overrides": [
  {
    "files": ["*.tsx"],
    "rules": {
      "react/prop-types": "off"
    }
  }
]

npm install --save-dev prettier-plugin-organize-imports prettier-plugin-tailwindcss

{
  "plugins": ["prettier-plugin-organize-imports", "prettier-plugin-tailwindcss"]
}

npm install --save-dev eslint-plugin-prettier

"plugins": ["prettier"],
"rules": {
  "prettier/prettier": "error"
}

npx husky add .husky/pre-push "npm run test"

npx husky add .husky/pre-push "branch=$(git rev-parse --abbrev-ref HEAD)
if [ $branch = "master" ]; then
  echo 'Direct pushes to master are not allowed.'
  exit 1
fi"

module.exports = {
  extends: ['@commitlint/config-conventional'],
  rules: {
    'scope-enum': [2, 'always', ['ui', 'backend', 'infra']],
    'subject-case': [2, 'never', ['start-case', 'pascal-case']],
  },
};

npm install -g commitizen

commitizen init cz-conventional-changelog --save-dev --save-exact

npm install --save-dev standard-version

"scripts": {
  "release": "standard-version"
}

name: Create Release Pull Request
on:
  push:
    branches:
      - main
jobs:
  changesets:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: changesets/action@v1
        with:
          publish: npm
          token: ${{ secrets.GITHUB_TOKEN }}