JSX file extension

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reactjs/JSX-file-extension.md
Dec 05, 2016
Reactjs

Using .jsx file extensions

When using .jsx file extension, you need to specify the extension in file imports as well. For example:

import App from './components/App.jsx'

When using .js file extension, it just knows it’s javascript and imports look a bit neater, like so:

import App from './components/App'