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
Learn how to optimize component rendering by memoizing callback functions with useCallback, preventing unnecessary re-renders and improving React application performance.
Learn how to create your own custom React hooks to abstract and share stateful logic between components, improving code reusability and maintainability.
Learn how to implement effective form validation in React applications, from basic client-side validation to advanced validation libraries and techniques for providing user feedback.
Understand dynamic routing in React Router: how to use route parameters, best practices for flexible navigation, and building data-driven React applications.
Learn how to use useMemo to memoize expensive computations, prevent unnecessary recalculations, and boost your React application's performance.
Explore popular form libraries like Formik, React Hook Form, and Yup for streamlining form handling in React applications, reducing boilerplate code, and simplifying validation.
Master controlled components in React forms, learn effective state management patterns, and build forms that provide real-time feedback and validation for an enhanced user experience.
Learn how to use the useRef hook to directly access DOM elements, store persistent values across renders, and build more efficient React components.
Learn when and how to implement uncontrolled components in React forms, understand their benefits for simplicity and performance, and see how to use refs to access form values.
Learn how to handle forms in React applications, understand the key concepts of controlled and uncontrolled components, and implement basic form handling techniques.