JS Modules Libraries & Node

1. Introduction to JavaScript Modules:

   • Exploring different module formats:

     • ES6 Modules: Using import and export statements to define dependencies between modules.

     • CommonJS Modules: Understanding require() and module.exports for module loading in Node.js.

       

2. Creating and Importing Modules:

   • Writing modular code by creating separate JavaScript files for different functionalities.

   • Importing modules using import statement in ES6 modules or require() function in CommonJS modules.

   • Exporting functions, variables, or objects from modules using export keyword in ES6 modules or module.exports in CommonJS modules.

     

3. Managing Dependencies with npm:

   • Introduction to npm (Node Package Manager) and its role in managing JavaScript dependencies.

   • Installing npm packages locally or globally using npm install.

   • Managing project dependencies by creating and updating package.json file.

   • Understanding semantic versioning and specifying dependencies in package.json.

   

4. Popular JavaScript Libraries:

   • Introduction to popular JavaScript libraries and frameworks for various purposes:

     • Frontend Libraries: React.js, Vue.js, Angular.js for building user interfaces.

     • Utility Libraries: Lodash, Underscore.js for utility functions and data manipulation.

     • Data Visualization Libraries: D3.js, Chart.js for creating interactive visualizations.

     • Backend Frameworks: Express.js, Koa.js for building server-side applications.

       

5. Introduction to Node.js:

   • Understanding Node.js as a JavaScript runtime environment for server-side development.

   • Installing Node.js and npm.

   • Writing server-side code using Node.js to handle HTTP requests and responses.

     

6. Common Node.js Modules:

   • Exploring built-in modules provided by Node.js for various functionalities:

     • fs: File system operations.

     • http: Creating HTTP servers and making HTTP requests.

     • path: Working with file paths.

     • events: Implementing event-driven architecture.

     • util: Utility functions for debugging and error handling.

       

7. Asynchronous JavaScript with Promises and async/await:

   • Using Promises and async/await syntax for handling asynchronous operations in Node.js.

     

8. Practical Examples and Exercises:

1. Write a module to calculate the area of a rectangle given its length and width.

2. Generate a random string of length 10 using the randomstring npm package.

3. Create a simple Node.js server that responds with "Hello, World!" when accessed.