Learn JavaScript
JavaScript is the backbone of modern web development. Discover why learning JavaScript is crucial, its booming job market, and how it can elevate your career. Our platform provides a wealth of exercises and projects to help you become proficient in this powerful language.
Popular exercises
12hrs average
**Learn JavaScript Arrays and Loops**: Master loops with an interactive tutorial packed with exercises. Get instant feedback from our AI mentor, auto-grading, and video solutions. Practice key concepts like for, forEach, while, map, filter, find, and looping through object literals.
8hrs average
Learn to create a REST API with Node and Express in our interactive tutorial! Master essential coding skills and kickstart your programming journey today!
8hrs average
Enhance your Javascript programming skills with this comprehensive set of interactive and auto-graded exercises. These exercises cover fundamental topics such as variables, loops, conditionals, functions, and arrays. By completing these exercises, students will gain a solid understanding of Javascript basics, preparing them for more advanced programming challenges. Technologies and topics included are ES6 syntax and basic algorithmic thinking.
Javascript learning materials
Master compound types, generics, and TypeScript configuration. A practical guide for developers who want to make the most of static typing in their projects.
1hrs average
Build a professional landing page to sell a product (mobile app, online course, or physical product) in just 5 minutes using AI. You'll create a complete conversion-focused page with hero section, features, testimonials, pricing, and strategic CTAs. Practice semantic HTML, modern CSS (glassmorphism, animations), JavaScript (dark/light mode with localStorage, scroll animations), responsive design, and accessibility. The project is built from scratch in Cursor using one powerful AI prompt, with optional iterations for personalization.
Learn how to implement a robust authentication system in React applications using Context API to manage user state, credentials, and permissions across your entire application.
Learn how to use useMemo to memoize expensive computations, prevent unnecessary recalculations, and boost your React application's performance.
A complete and practical guide to modern JavaScript tools and patterns for developers experienced in other programming languages.
In this article, you will explore the world of Cross-Site Scripting (XSS), a vulnerability that turns the browser into an attack field without the user noticing. You will learn how JavaScript can be used both to create rich experiences and to inject malicious code. You will discover practical examples, understand the types of XSS, and develop a critical eye to identify vulnerable code. Because in web defense, the enemy often hides in what seems innocent.
Discover how JavaScript can update parts of a web page in real-time without reloading the entire page. This lesson explains how dynamic HTTP requests work and how modern websites use APIs to fetch new data.
2hrs average
Transform your static Product Landing Page into an interactive conversion machine. You'll add dynamic pricing comparison (monthly/annual toggle, quantity sliders), multi-step intelligent forms with validation, FAQ accordion with search, and dynamic testimonial carousel with filters. This project emphasizes advanced prompting, iterative development, state management, and collaborative debugging with AI to create components that increase conversions.
Learn how to implement private routes in React applications to restrict access to authenticated users, create route guards, and seamlessly integrate authentication with React Router.
Learn how to optimize component rendering by memoizing callback functions with useCallback, preventing unnecessary re-renders and improving React application performance.