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JavaScript Event Loop: Microtasks vs Macrotasks Explained
The JavaScript event loop is one of the most fundamental concepts to understand for mastering asynchronous programming. This article explores how the event loop works, what microtasks and macrotasks are, and how they affect code execution order.
What is the Difference Between var, let, and const in JavaScript?
Understanding the difference between var, let, and const in JavaScript is crucial for writing clean, efficient, and bug-free code. In this article, we break down their scope, hoisting, mutability, and best practices with examples.
JavaScript Learning Path (0 → Hero in 10 Chapters) | Learn JavaScript from Basics to Advanced
Learn JavaScript from zero to advanced with this complete guide. Covers variables, data types, functions, loops, DOM, events, async JS, ES6+, OOP, browser APIs, and hands-on projects for real-world web development.
How do I load external JavaScript dynamically in Angular?
Loading external JavaScript dynamically in Angular is a common need when you want to use third-party libraries, widgets, or tools without hardcoding them into your project. For example, you may want to add Google Maps, a chat widget, or analytics scripts only when required. In this article, we will explain why dynamic script loading useful, different ways is to do it, and the best practices you should follow.
Advanced concepts of JavaScript
Master advanced JavaScript concepts like closures, hoisting, prototypes, async/await, event loop, and functional programming to write efficient, reusable, and well-structured code for modern applications.
Operators and Loops in JavaScript
Master JavaScript operators and loops with this complete guide—covering arithmetic, comparison, logical, string, ternary, type, and bitwise operators, plus for, while, do...while, for...in, and for...of loops with examples and best practices.
Understanding Functions in JavaScript
Learn all about JavaScript functions — from declarations, expressions, and arrow functions to callbacks and best practices — with syntax examples, tips, and explanations for writing clean, reusable, and efficient code.
How the Event Loop Works in JavaScript?
An in-depth guide to JavaScript’s event loop—how a single-threaded language manages concurrency using the call stack, callback queue, and event loop, both in browsers and Node.js. Includes explanations, diagrams, and related C# Corner articles for further reading.
NPM, PNPM, Yarn & Bun – What They Are and Which One You Should Use
NPM, PNPM, Yarn, and Bun are the four most popular JavaScript package managers. Learn in simple words how they work, their pros and cons, and which one is right for your project.
Is JavaScript Synchronous or Asynchronous?
Explore the core differences between synchronous and asynchronous execution in JavaScript. Learn how each model works, why asynchronous programming is essential for modern web applications, and how patterns like callbacks, promises, and async/await help manage complexity—illustrated with insights from C# Corner articles.
Deep Dive into JavaScript Hoisting
A comprehensive guide explaining JavaScript hoisting—how variable and function declarations are lifted during the compilation phase—covering var, let, const behaviors, and best practices to avoid pitfalls.
How Does JavaScript Interact with the DOM?
Learn how JavaScript interacts with the DOM to create dynamic, responsive, and interactive web pages. A detailed guide with examples and best practices for modern developers.
What is JavaScript?
Discover what JavaScript is, why it’s essential in modern web development, and how it powers the dynamic behavior of websites. A complete beginner-friendly guide with examples and practical insights.
What are the data types in JavaScript?
This article offers a beginner-to-advanced explanation of JavaScript data types, covering primitives, objects, dynamic typing, and best practices with code examples. Learn how JavaScript handles data under the hood and avoid common pitfalls when working with variable types.
Validate the UPI ID Format
To validate the UPI ID format in your existing JavaScript method (where you already check for an empty input), you can simply add a regular expression check after the empty check.
Chapter 8: Introduction to the Document Object Model (DOM)
Learn how the DOM allows JavaScript to interact with and manipulate web pages using nodes. This chapter covers element selection, modification, event handling, and dynamic content creation for interactive websites.
Chapter 7: JavaScript Arrays and Objects: Storing Collections of Data
This chapter explores JavaScript Arrays and Objects—powerful tools for managing data. Learn how to create, access, modify, and iterate over collections using various methods, loops, and modern techniques.
Chapter 6: JavaScript Functions: Reusable Code Blocks
This chapter introduces JavaScript functions—reusable code blocks that enhance organization, readability, and maintainability. It covers declarations, parameters, return statements, scope, function expressions, and modern arrow functions.
Chapter 5: JavaScript Loops: Repetitive Tasks
This chapter covers JavaScript loops—for, while, and do...while—along with break and continue statements, helping you automate repetitive tasks and iterate over data effectively.
Chapter 4: JavaScript Control Flow: Making Decisions
This chapter explains JavaScript control flow with if-else, switch, and ternary operators, enabling programs to make decisions and execute different code blocks based on conditions and variable values.
Chapter 3: JavaScript Operators
This chapter introduces JavaScript operators, including arithmetic, assignment, comparison, logical, ternary, and unary operators, with examples. Mastering these is essential for performing calculations, comparisons, and controlling program flow.
Chapter 2: JavaScript Core Syntax and Basic Data Types
Learn JavaScript's core syntax, data types, and variable declarations (var, let, const). Master statements, expressions, type coercion, and type checking—essential foundations for writing effective, bug-free code.
Chapter 1: Welcome to JavaScript!
Explore the fundamentals of JavaScript—its history, core concepts, environments, and why it dominates web development. Learn to write and run your first JS code using browser console and VS Code.
Leveling Up in JavaScript: Moving Beyond the Basics Part 2
If you've already dipped your toes into the world of JavaScript and gone through the basics, congratulations — you're officially on the path to becoming a web developer! In my first article on C# Corner, I introduced the fundamentals of JavaScript: variables, functions, events, loops, and more.
Introduction to JavaScript: A Beginner’s Guide Part 1
Learn what JavaScript is, why it’s essential for web development, how it works in browsers, and explore its core concepts—perfect for beginners ready to build dynamic, interactive websites.
How to Cancel Fetch Requests in JavaScript Using AbortController
Learn how to cancel fetch requests in JavaScript using the AbortController API. Improve performance, prevent duplicate API calls, and manage async operations more efficiently with real-world examples and clean code.
Destructuring and Spread/Rest in JavaScript
Destructuring, spread, and rest operators in JavaScript simplifies code by extracting values, merging arrays/objects, and handling unknown function arguments efficiently. These ES6 features improve readability and reduce repetition.
What are closures in JavaScript
A closure in JavaScript is a function that remembers variables from its outer scope, even after the outer function has finished. Closures help manage state, create private variables, and improve code flexibility.
Events and Event Handlers in Javascript
Learn how JavaScript events and handlers make web pages interactive. From mouse clicks to form inputs, master event-driven programming for responsive, user-friendly websites with real-time user interaction.
