Javascript

A spring 2026 roundup: container queries in production, view transitions, improved observability APIs, and what to adopt vs. wait on.

Dive deep into JavaScript Proxy - the powerful metaprogramming feature that lets you intercept and customize operations on objects. Learn handlers, traps, and real-world applications.

Master frontend live coding interviews with practical React component exercises. Learn data fetching, infinite scroll, form handling, and optimization techniques with step-by-step implementations.

Master your senior frontend engineer interview with this comprehensive guide covering system design, performance optimization, testing strategies, and modern best practices. Includes real-world examples and proven techniques.

Master frontend unit testing with Jest, React Testing Library, and API mocking. Learn testing strategies, best practices, and real-world examples for bulletproof applications.

Master file upload implementation in frontend applications with practical examples, security considerations, and performance optimization techniques.

A comprehensive guide to using FormData API in frontend development, covering file uploads, form handling, and advanced techniques for modern web applications.

Explore micro-frontend architecture patterns for building scalable, maintainable web applications at enterprise scale 🏗️

Master advanced React patterns and performance optimization techniques to build scalable, high-performance applications 🚀

A comprehensive guide to advanced testing React projects with Jest 👌

WebAssembly is a new technology that has the potential to change the way we build web applications. It allows us to run code written in different languages on the web at near native speed, which opens up a lot of possibilities. In this article, we will explore some practical use cases for WebAssembly and how it can be used to create a seamless web experience. ⚡️

This article provides essential guidance for individuals preparing for front-end developer interviews, including a list of must-know questions and answers. ✅

JavaScript's Map: Versatile key-value pairs. Set: Distinct, ordered collections. Enhance data structures in seconds! 🗺️🔄🚀

Distinguish plain objects from complex ones for robust data validation in web forms. Explore the importance and practical use cases.

Let's unravel the distinctions between two common promise error handling patterns: `promise.then().catch` and `promise.then(resolve, reject)`.

In JavaScript, when we want to make an object, there are different ways to do it. 🧐

A quick guide to understanding the curry function in JavaScript.