🧰 Mastering TypeScript

Welcome to the Mastering TypeScript Project! This simple project is designed to help you understand the basics of TypeScript, including how to set up a project, use static typing, and organize code with modules.

This Git repository contains my personal notes, code snippets, and reflections as I read through Programming with Types by Vlad Riscutia. The book offers a deep dive into TypeScript's type system, exploring concepts like structural typing, type inference, and advanced patterns for building robust applications. My notes aim to reinforce key ideas from the book and provide practical examples that complement the theoretical insights. You can learn more about the book here.

My notes on TypeScript can be accessed here.

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🚀 Getting Started

1. Clone the Repository

git clone https://github.com/alexcarcar/MasteringTypeScript.git
cd typescript-demo

2. Install Dependencies

npm install

3. Compile the TypeScript Code

npx tsc

4. Run the Project

node dist/index.js

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📁 Project Structure

typescript-demo/
├── src/
│   ├── index.ts        # Entry point
│   ├── utils.ts        # Utility functions
│   └── models.ts       # Type definitions
├── dist/               # Compiled JavaScript output
├── package.json        # Project metadata and scripts
└── tsconfig.json       # TypeScript configuration

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🧪 Code Overview

models.ts

Defines a User interface with optional properties.

export interface User {
  id: number;
  name: string;
  email?: string;
}

utils.ts

Contains a function that uses the User type.

import { User } from './models';

export function greet(user: User): string {
  return `Hello, ${user.name}!`;
}

index.ts

Creates a user and prints a greeting.

import { greet } from './utils';
import { User } from './models';

const user: User = {
  id: 1,
  name: 'Alice'
};

console.log(greet(user));

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⚙️ TypeScript Features Demonstrated

• ✅ Static typing with interfaces
• ✅ Optional properties
• ✅ Modular imports/exports
• ✅ Configuration via tsconfig.json
• ✅ Compilation to JavaScript

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📚 Resources

• TypeScript Official Docs
• tsconfig Reference
• Node.js
• npm