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 difference between React and ReactDOM?
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 moreWhat is the purpose of React and ReactDOM library?
React library is responsible for creating views and ReactDOM library is responsible to actually render UI in the browser . Include these two libraries before your main JavaScript file. While learning How React works, we’ll build a small application using react and ReactDOM.
Read moreHow does ReactDOM work?
ReactDOM is an object which exposes a number of top-level APIs to interact with the browser DOM . According to the docs, it provides ‘DOM-specific methods that can be used at the top level of your app and as an escape hatch to get outside of the React model if you need to’.
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 .
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