React js is a modern, unified programming language that focuses on components. Each component has its own properties and functions. Data flows from parent components to child components. There is a top-level component called the “App” that contains other components. React supports both client-side and server-side development, and it can be used with other frameworks. In addition to components, React supports data patterns.
One technique for improving performance in React is to minimize component re-rendering. This can be done by avoiding actions that trigger component re-rendering. You can also use memoization and hooks to minimize costly data calculations. Using the useMemo or useCallback hooks can help you keep your React apps performant and save on resources.
The React JS library is a JavaScript library that allows you to create dynamic, responsive websites. The library was created by Facebook and is currently the most popular front-end library. It is used to create single-page applications and mobile apps. With React, you can create a complicated UI with ease. A component is a javascript function or element that represents a section of the UI.
React also works well in large applications and is scalable. It breaks the user interface into individual components and provides better performance than other JavaScript languages. It requires minimal HTML and JavaScript knowledge to create a website with ReactJS.
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