π INTRODUCTION Angular Pipes are used to transform data in templates before displaying it to the user. Instead of modifying data in the component, pipes allow you to format it directly in HTML. Angular provides several built-in pipes such as: Uppercase Lowercase Date Currency Percentage π Pipes make your UI cleaner and more readable. π …
Angular App using Components
π INTRODUCTION Components are the building blocks of an Angular application. Every Angular app is made up of one or more components. A component controls: A part of the user interface The logic behind that part The template displayed to the user In this program, we will create an Angular application using multiple components. π …
Angular Hello World App
π INTRODUCTION Angular is a powerful front-end framework developed by Google for building dynamic web applications. The first program in Angular is usually the Hello World App, which helps you understand: Angular project structure Components Templates Data binding π This is the starting point for Angular development. π PROBLEM STATEMENT π Create a Hello World …
Simple HTTP Server in Node.js
π INTRODUCTION Node.js allows developers to create web servers very easily using its built-in http module. This module helps us handle client requests and send responses from the server. A simple HTTP server is one of the first and most important programs in Node.js because it introduces: Server creation Request handling Response sending Port listening …
Node.js File Upload Application using Express and Multer
π INTRODUCTION File upload is one of the most useful features in web applications. It allows users to upload: Images PDF files Documents Resume files Project reports In Node.js, file upload is commonly implemented using: Express.js for server creation Multer middleware for handling file uploads In this program, we will build a simple Node.js File …
Node.js File Operations with Examples (Read, Write, Append, Delete)
π INTRODUCTION File handling is one of the most important features of Node.js. Using Node.js, we can create, read, update, append, rename, and delete files easily. For file operations, Node.js provides the built-in fs module (fs stands for file system). In this program, we will learn how to perform common file operations such as: Creating …
React Login Form with Validation using useState
π INTRODUCTION A login form is one of the most common components in web applications. It helps users enter their credentials and access a system securely. In React, login forms are usually built using: useState hook Controlled components Form validation In this program, we will develop a login form with validation using React state. π …
React Todo List App (Add + Delete using useState)
π INTRODUCTION The Todo List App is one of the most popular beginner projects in React. It helps you understand: State management List rendering Event handling In this program, we will build a Todo app that: Adds tasks Deletes tasks Displays task list dynamically π This is a must-do project for beginners. π PROBLEM STATEMENT …
React Calculator App using useState (Complete Example)
π INTRODUCTION Building a calculator is one of the best ways to understand: State management Event handling Dynamic UI updates In this program, we will create a basic calculator app that can: Perform addition, subtraction, multiplication, division Display results dynamically π This is a must-do mini project for React beginners. π PROBLEM STATEMENT π Develop …
React Form Handling using useState (Controlled Components)
π INTRODUCTION Handling forms in React is different from traditional HTML. In React, we use controlled components, where form inputs are controlled by state. In this program, we will: Use useState to manage form inputs Handle user input dynamically Understand controlled components π This concept is essential for: Login forms Registration systems Real-world applications π …