{ "content": "

React<\/a><\/h1>

React<\/a> is a declarative, efficient, and flexible JavaScript<\/a> library for building User Interfaces<\/a>. It was created by Jordan Walke<\/a> at Meta<\/a> and has since become one of the most widely used tools in Frontend Development<\/a>. By using a Component-Based Architecture<\/a>, developers can build encapsulated components that manage their own state, then compose them to make complex UIs. The introduction of JSX<\/a> allows for a more visual and readable code structure by combining markup with logic. Furthermore, React<\/a> uses a Virtual DOM<\/a> to efficiently update and render the right components when data changes. The ecosystem is supported by various tools like React Router<\/a> and Redux<\/a>. Official documentation is available at react.dev<\/a>, and the source code can be found on GitHub<\/a> at facebook\/react<\/a>.<\/p>