React - Basics Tutorial

ReactJS Component vs JSX Element

ReactJS is a popular JavaScript library used for building user interfaces. It was initially developed by Facebook and is now maintained by Facebook, Instagram, and a community of individual developers and companies.nnVersion: The latest stable version of ReactJS is 17.0.2 as of July 2021. React follows semantic versioning, and major releases are sometimes accompanied by new features, improvements, and potential breaking changes. It’s always recommended to check the official ReactJS documentation for the most up-to-date information on specific versions.nnIntroduction: ReactJS is known for its component-based architecture, which allows developers to build reusable UI components and compose them to create complex user interfaces. It utilizes a virtual DOM (Document Object Model) to efficiently update and render components when there are changes in the underlying data.nnReactJS promotes a declarative programming model, where developers describe how the UI should look based on the current state of the application. React automatically handles the efficient updating of the actual DOM to reflect the desired state, making it easier to build interactive and responsive web applications.nnSome key features of ReactJS include:nn- Component-Based: React organizes the UI into reusable components, which makes it easier to reuse and maintain code.n- Virtual DOM: React uses a virtual representation of the DOM, allowing it to efficiently update only the necessary parts of the UI when changes occur.n- One-Way Data Flow: React follows a unidirectional data flow, which makes it easier to track and control how data changes affect the UI.n- JSX Syntax: React uses JSX, a syntax extension for JavaScript that allows developers to write HTML-like code within JavaScript, simplifying the creation of UI components.nnReactJS has a vast ecosystem with a rich collection of libraries, tools, and community support, making it a popular choice for building modern web applications. Its versatility and performance have made it widely adopted by developers worldwide.

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