To fix the ‘Uncaught ReferenceError: React is not defined’ error when developing React apps, we can add the ‘react’ property to the externals property in webpack. config. json . Also, we can add import React from ‘react’; to the top of each component file to fix the error.
Read moreHow do you fix ReactDOM is not defined?
Most likely, you forgot to import it from the package react-dom :
Read moreWhy is ReactDOM not part of React?
The reason React and ReactDOM were split into two libraries was due to the arrival of React Native. React contains functionality utilised in web and mobile apps. ReactDOM functionality is utilised only in web apps .
Read moreWhat is ReactDOM and what is the difference between ReactDOM and React?
Answer. React is a JavaScript library for building User Interfaces and ReactDOM is the JavaScript library that allows React to interact with the DOM .
Read moreWhich method is part of ReactDOM?
Answer: A is the correct answer as ReactDOM. destroy() method is not a part of ReactDOM . ReactDOM provides the developers with an API containing the methods such as render(), findDOMNode(), unmountComponentAtNode(), hydrate(), and createPortal().
Read moreDo I need to import ReactDOM?
You need to import the default, and you need to name it React . This is because anytime you write JSX code like <MyComponent /> or <App /> , this JSX code is transpiled and uses React.
Read moreHow do you put a react code in CodePen?
But, you can use React on CodePen!
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