Configure babel for React with preset-react

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In this lesson, we'll add React and ReactDOM to our project and create an entry point for the React application. We'll also configure Babel with the React preset so Babel can transpile our JSX into JavaScript that will run in a browser.

Viktor Soroka

~ 6 years ago

Nice lecture. It would be nice also to hear a few words about the order of presets inside presets array.

Sean O’Donnell

~ 6 years ago

Good stuff. Just a heads up, after following along with this tutorial, I was getting this error when doing npm run build:

ERROR in ./src/index.js
Module build failed (from /Users/seano/node_modules/babel-loader/lib/index.js):
Error: Requires Babel "^7.0.0-0", but was loaded with "6.26.3".

Solved thusly:

npm install babel-loader babel-core@^7.0.0-bridge @babel/core --save-dev

Andy Van Slaars(instructor)

~ 6 years ago

Good stuff. Just a heads up, after following along with this tutorial, I was getting this error when doing npm run build

I'm not sure what you have installed or configured at this stage that would cause this error. This problem does come up later in the course and installing the babel-core bridge package is covered in: this video, covering testing React components with Jest