reactjs online training

React components are JavaScript functions that manage their own state and can be composed to make complex UIs

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. React uses a virtual DOM (JavaScript object) to enhance the speed of programs and improve performance

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. React components implement a render() method that takes input data and returns what to display

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. JSX is a JavaScript syntax extension popularized by React that allows developers to write markup syntax close to related rendering logic, making React components easy to create, maintain, and delete

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