- Install Node Module Package: Use
npm install <package-name>in your terminal. - Install TypeScript: Run
npm install -g typescriptto install globally. - JS vs TS: JavaScript is dynamically typed, TypeScript is statically typed with optional type annotations and better tooling.
- Data Types (TS): Basic types include
string,number,boolean,any,void,null,undefined,array, andtuple.
Full-Stack Development
MERN Full-Stack Development
This course will teach you how to build full-stack web applications using MongoDB for database management, Node.js for backend development, Express for web server handling, and React for building dynamic, interactive front-end interfaces. By the end, you’ll have the skills to create scalable, efficient web applications from both the client and server sides.
Shreelakshmi
- (4.8)
- 15
- 1 hour per day
- 25
This course will teach you how to build full-stack web applications using the MERN stack (MongoDB, Express, React, and Node.js). You’ll gain a deep understanding of both front-end and back-end development while working with powerful technologies like MongoDB for database management, React for creating dynamic user interfaces, Node.js for server-side functionality, and Express for efficient API routing.
You’ll work on real-world projects, gaining practical experience and the skills necessary to develop dynamic, responsive, and scalable web applications. As you go through the course, you will explore core web development concepts and strategies that will empower you to tackle full-stack development challenges confidently.
By the end of the course, you will have created three full-stack applications that target different needs, giving you the hands-on experience required to build and deploy your own web applications in a real-world environment.
What Will You Learn?
This course will help you learn the core concepts of MERN Stack development, including front-end and back-end technologies, data management, and API creation. By the end of this tutorial, you will be able to build and deploy your own full-stack applications.
Requirements
This course is designed for beginners who want to learn web development with the MERN stack. A basic understanding of HTML, CSS, and JavaScript is recommended but not required.
MongoDB Introduction & Installation
MongoDB is a NoSQL database that stores data in flexible, JSON-like documents. Install it from the official site, add it to system PATH, and start the server with mongod. Use mongo to open the shell and begin interacting with the database.
Create Database using Mongo Shell, About Collection and Document
Use use myDatabase to create or switch to a database in Mongo Shell. A collection is like a table and is created when you insert a document (record). Example: db.users.insertOne({ name: "Alice", age: 25 }).
MongoDB Cursor
A MongoDB cursor is an object that allows you to iterate over the results of a query. By default, find() returns a cursor: db.users.find(). Use methods like .forEach(), .toArray(), or cursor limits for data handling.
MongoDb Methods - Such as - insertOne(),insert(),insertMany(),update() etc.
MongoDB provides methods like insertOne(), insertMany() for adding documents, and updateOne(), updateMany() for modifying them. insert() is older and can insert one or more documents. Use deleteOne(), deleteMany(), and find() for deletion and querying.
Mongo How to Handle the Operator - Arithmetic Operator,Condition Operator,Logical Operator
MongoDB uses arithmetic operators like $inc, $mul for calculations in updates. Conditional operators like $gt, $lt, $eq filter data based on conditions. Logical operators like $and, $or, $not combine multiple query conditions.
Field update operator
Field update operators in MongoDB modify document fields during updates. Common ones include $set to assign a value, $unset to remove a field, and $inc to increment. Example: db.users.updateOne({name: "John"}, {$set: {age: 30}}).
Array Expression operator
Array expression operators in MongoDB are used to manipulate arrays within documents. Common operators include $push (add to array), $pull (remove from array), and $addToSet (add unique values). Example: db.users.updateOne({name: "John"}, {$push: {tags: "new"}}).
About Indexing in MongoDb
Indexing in MongoDB improves query performance by allowing fast data retrieval. The default index is on the _id field, and additional indexes can be created using db.collection.createIndex(). Common types include single-field, compound, and text indexes.
Aggregation in MongoDb
Aggregation in MongoDB processes data and returns computed results, similar to SQL's GROUP BY. It uses the aggregate() method with stages like $match, $group, $sort, and $project. Aggregation is powerful for complex data transformations and analysis.
About Replication and Sharding
Replication in MongoDB ensures data availability by copying data across multiple servers (primary and secondary). Sharding distributes data across multiple servers to handle large datasets by partitioning the data. Both enhance performance, scalability, and fault tolerance in MongoDB.
Learn what Node.js is and set up your environment
Node.js is a JavaScript runtime built on Chrome's V8 engine, allowing server-side development with JavaScript. To set up, download Node.js from nodejs.org, install it, and verify with node -v in the terminal. Use npm (Node Package Manager) to manage packages and dependencies.
Create web servers with the HTTP module
Here are the theoretical short notes on creating web servers with the HTTP module in Node.js: 1. HTTP Module: The http module in Node.js allows you to create a server that listens for client requests and sends back responses. 2. createServer() Method: This method is used to create an HTTP server. It takes a callback function that handles incoming requests (req) and sends responses (res). 3. Listening on a Port: The server is set to listen on a specific port (e.g., 3000) using the listen() method, enabling it to accept incoming requests. 4. Request and Response: The req object represents the client's request, while the res object is used to send data back to the client.
Work with built-in modules (File System, URL, Events)
Node.js has built-in modules like: 1. File System (fs): Allows reading and writing files (e.g., fs.readFileSync(), fs.writeFileSync()). 2. URL: Provides utilities for URL resolution and parsing (e.g., new URL()). 3. Events: Enables event-driven programming with the EventEmitter class (e.g., emitter.on('event', callback)).
Use Node Package Manager (NPM) to manage packages
NPM (Node Package Manager) is used to manage JavaScript packages in Node.js. Use npm init to create a package.json file and npm install to install dependencies. To install globally, use npm install -g and to update, use npm update.
Handle files (upload, read, create, update, delete)
NPM (Node Package Manager) is used to manage JavaScript packages in Node.js. Use npm init to create a package.json file and npm install to install dependencies. To install globally, use npm install -g and to update, use npm update.
Handle files (upload, read, create, update, delete)
In Node.js, the fs (File System) module handles file operations. 1. Use fs.readFile() to read, fs.writeFile() to create/update, and fs.unlink() to delete files. 2. Use fs.appendFile() to append content, and fs.existsSync() to check file existence.
Send emails using Node.js
To send emails in Node.js, use the Nodemailer package. Install it with npm install nodemailer and create a transporter with email service credentials. Use transporter.sendMail() to send emails, specifying sender, recipient, subject, and message.
Connect and work with MySQL database
To connect to a MySQL database in Node.js, use the mysql package (npm install mysql). Create a connection using mysql.createConnection() with your database credentials (host, user, password, database). Use connection.query() to execute SQL queries and interact with the database.
Create and manage MongoDB databases
To create and manage MongoDB databases, use the MongoDB Node.js driver. Connect to the database with MongoClient.connect() and specify the database name. Use methods like db.collection() to create collections and collection.insert(), find(), update(), and delete() for data management.
Build real-world applications with Node.js
To build real-world applications with Node.js, use frameworks like Express.js for routing and middleware. Integrate databases (e.g., MongoDB, MySQL) for data storage and management. Leverage modules like Nodemailer for email, Passport for authentication, and Socket.io for real-time communication.
About Express, Installation Setup
Express is a minimal and flexible Node.js web application framework for building APIs and web apps. To install, run npm install express and create a server by requiring and using the express() function. Set up routes with app.get(), app.post(), and other HTTP methods to handle requests.
About Request and Response - Get and Post
In Express, req (request) holds data from the client, like parameters, body, or query strings. res (response) is used to send data back to the client, such as status codes and content. Use app.get() for handling GET requests (retrieve data) and app.post() for handling POST requests (send data).
Express About Routing
Routing in Express defines how an application responds to client requests for specific URLs and HTTP methods. Use app.get(), app.post(), etc., to define routes for different HTTP methods and paths. You can also create route parameters (e.g., /user/:id) and handle them using req.params.
About Cookies
Cookies store data on the client’s browser, commonly used for session management and user preferences. In Express, use the cookie-parser middleware to handle cookies. Set cookies with res.cookie() and access them via req.cookies.
File Upload
To handle file uploads in Express, use the multer middleware. Install it with npm install multer and configure it to specify storage and file types. Use upload.single('file') or upload.array('files') to handle single or multiple file uploads in routes.
About Template and Middleware
Template engines (e.g., Pug, EJS) generate dynamic HTML by embedding JavaScript code in views. Use res.render() to render views with data. Middleware functions process requests before reaching route handlers, modifying requests or executing code (e.g., app.use() for parsing JSON).
How to Create the Basic HTML Web Page Using CSS?
HTML5 web forms are created using the <form> element with various input types like <input>, <textarea>, and <select>. Attributes like action (form submission URL) and method (GET/POST) control form behavior. HTML5 introduces input types such as email, password, and date for built-in validation and user experience.
Creating HTML5 Web Forms
HTML structures the web page using tags like <html>, <head>, and <body>. CSS styles HTML elements by controlling layout, colors, fonts, and more. CSS can be embedded, linked externally, or written inline to apply rules to specific elements.
How to Add Bootstrap Themes in HTML Web Page
To add Bootstrap themes, include the Bootstrap CSS file in your project, either locally or through npm. Then, reference Bootstrap classes like container, btn, or navbar within your HTML elements. This will apply pre-defined styles and responsive design features to your webpage.
How to Add Bootstrap Themes in HTML Web Page
To add Bootstrap themes, include the Bootstrap CSS file in your project, either locally or through npm. Then, reference Bootstrap classes like container, btn, or navbar within your HTML elements. This will apply pre-defined styles and responsive design features to your webpage.
How to Add Bootstrap Themes in HTML Web Page
To add Bootstrap themes, include the Bootstrap CSS file in your project, either locally or through npm. Then, reference Bootstrap classes like container, btn, or navbar within your HTML elements. This will apply pre-defined styles and responsive design features to your webpage.
About Typescript - install node_module package?
Operator and Datatype
In TypeScript, let (block-scoped) and var (function-scoped) are used for variable declarations, with let being preferred. Types like any, array, string, object, tuple, enum, and null help enforce type safety and structure. any allows flexibility, arrays and tuples handle collections, string and object store text and structured data, enum defines constants, and null represents no value.
OOPS - Class & Object
In TypeScript OOP, a class defines a blueprint for creating objects with properties (variables) and methods (functions). A constructor is a special method used to initialize objects when they are created. TypeScript supports inheritance, allowing a class to extend another, enabling code reuse and hierarchical relationships.
Understanding about Modifiers, static method, Interface, Abstract Class
TypeScript provides modifiers like public, private, and protected to control access to class members. Static methods belong to the class itself rather than instances and are called using the class name. An interface defines a contract for object shapes, while an abstract class provides a base with optional implementation, meant to be extended but not instantiated directly.
React Introduction
React is a JavaScript library for building dynamic UIs with reusable components and a virtual DOM for efficient rendering. Key features include one-way data binding, component-based architecture, and hooks for state management. Essential concepts include components, JSX, props, state, and React Router for navigation.
About Software
Node.js is a JavaScript runtime used to build fast, scalable server-side applications. NPM (Node Package Manager) manages JavaScript packages and dependencies in Node.js projects. To install React, run npx create-react-app my-app, then navigate to the folder and run npm start to begin development.
Understanding About React Components
React components are reusable, self-contained pieces of UI built using JavaScript or JSX. They can be functional or class-based, and each component returns HTML-like code (JSX). Components can accept props and manage state to render dynamic content.
Understanding About React Components
React components are reusable, self-contained pieces of UI built using JavaScript or JSX. They can be functional or class-based, and each component returns HTML-like code (JSX). Components can accept props and manage state to render dynamic content.
React Props & States
Props (short for properties) are used to pass data from one component to another in React. State is used to manage dynamic, changeable data within a component. Props are read-only, while state is mutable and controlled using useState in functional components.
React Props & States
Props (short for properties) are used to pass data from one component to another in React. State is used to manage dynamic, changeable data within a component. Props are read-only, while state is mutable and controlled using useState in functional components.
React Hooks
React Hooks are functions that let you use state and other React features in functional components. Common hooks include useState for state management and useEffect for side effects like data fetching. Hooks simplify component logic and avoid the need for class-based components.
Creating UI Forms and Handling Events
In React, UI forms are created using standard HTML form elements like <input>, <select>, and <form>. Events like onChange and onSubmit are handled using event handlers in JSX. Form data is typically managed using useState to track input values and update state dynamically.
Handling - React Routing
React Routing is handled using the react-router-dom library to enable navigation between components. Define routes using <BrowserRouter>, <Routes>, and <Route> components. Use <Link> or useNavigate() to navigate between pages without reloading the app.
Handling - React API
React handles API calls using JavaScript methods like fetch() or libraries like Axios. Use the useEffect hook to trigger API calls when the component loads or updates. Store and manage the fetched data using useState to update the UI dynamically.