Introduction When two people communicate over a video or voice call using WebRTC, they need to exchange details about how the connection should work. This is where Session Description Protocol (SDP) comes into play. SDP is a format used to describe multimedia sessions, helping peers agree on audio/video formats, codecs, network information, and other communication…
web development
Chapter 1.3 Directives in Angular – Structural (*ngIf, *ngFor), Attribute ([ngClass], [ngStyle]), Custom Directives
Introduction Directives in Angular are powerful tools that allow developers to manipulate the DOM dynamically. There are three types of directives: 1. Structural Directives Structural directives are prefixed with an asterisk (*) and are responsible for altering the structure of the DOM. 1.1 *ngIf – Conditional Rendering *ngIf adds or removes an element from the…
Chapter 1.2 Templates & Data Binding in Angular – Interpolation, Property & Event Binding, Two-way Binding
Introduction Templates and data binding are fundamental concepts in Angular that allow developers to create dynamic and interactive applications. Understanding interpolation, property binding, event binding, and two-way binding is crucial for building efficient Angular applications. Angular Templates A template in Angular defines the UI structure of a component. It is an HTML file (or inline…
Chapter 1.1 Modules & Components in Angular – NgModules & Component Lifecycle Hooks
Introduction Angular is a popular front-end framework that follows a modular architecture. Two core building blocks of an Angular application are Modules (NgModules) and Components. Understanding these concepts is crucial for developing scalable and maintainable applications. What Are Angular Modules (NgModules)? Angular applications are divided into modules to enhance maintainability and reusability. Key Features of…
Understanding package.json for Your Project
When starting a React project, you’ll encounter a file called package.json. This file acts like a roadmap for your project, listing the tools, libraries, and scripts your app needs to work. Here’s a beginner-friendly breakdown of what each entry in your package.json means. Basic Information Scripts Scripts automate tasks like starting the development server or…
Mastering the Observer Pattern in JavaScript: A Deep Dive with Advanced Concepts
The Observer Pattern is one of the most widely used behavioral design patterns in software development. It’s particularly useful in JavaScript for building event-driven systems, reactive programming, and managing state changes efficiently. In this blog, we’ll explore the Observer Pattern in detail, its implementation in JavaScript, and advanced concepts like unidirectional data flow, Subject-Observer relationships,…
Mastering Asynchronous Programming in JavaScript: A Comprehensive Guide
In today’s fast-paced web development world, asynchronous programming is a cornerstone of JavaScript. Whether you’re fetching data from an API, handling user interactions, or processing large datasets, understanding how to work with asynchronous code is essential. In this blog, we’ll explore the fundamentals of asynchronous programming in JavaScript, its importance, and the tools available to…
ES6 Array Helper Methods
Array helper methods introduced in ES6 make working with arrays easier and more expressive. Below, we cover each helper method with examples and explanations. 1. forEach The forEach method executes a provided function once for each array element. It does not return a new array. Syntax: Example: 2. map The map method creates a new…
Angular Fundamentals
A Complete Guide with Expected Interview Questions and Answers Angular is one of the most popular frameworks for building dynamic web applications. Mastering its fundamentals is critical for any developer aiming to excel in an Angular interview. This blog covers the core concepts of Angular, along with frequently asked interview questions and their answers, tailored…
The Advantages of Using Node.js in Modern Web Development
Node.js has revolutionized the way developers build scalable and efficient web applications. As a runtime environment built on Chrome’s V8 JavaScript engine, Node.js enables developers to use JavaScript for both client-side and server-side development. Below, we explore the key advantages of using Node.js and why it’s become a go-to choice for modern applications. 1. High…