I am fairly new to React and I've created a new app using the create-react-app
tool and started to play around with it. When ever I run my app, I get following warning:
Compiled with warnings.
./src/index.js
Line 1: 'Fragment' is defined but never used no-unused-vars
Search for the keywords to learn more about each warning.
To ignore, add // eslint-disable-next-line to the line before.
The following code is in my App.js :
import React, { Component, Fragment } from "react";
import Header from "./Layouts/Header";
import Footer from "./Layouts/Footer";
export default class extends Component {
render() {
return (
<Fragment>
<Header />
<p>Hello World</p>
<Footer />
</Fragment>
);
}
}
Which is used like this in my index.js (main entry point):
import React, { Fragment } from "react";
import ReactDOM from "react-dom";
import registerServiceWorker from "./registerServiceWorker";
import App from "./Components/App";
ReactDOM.render(<App />, document.getElementById("root"));
registerServiceWorker();
And I have installed the react plugin for ESLint and this is the configuration I am using in my .eslintrc
{
"plugins": ["react"],
"rules": {
"react/jsx-uses-react": 2
},
"extends": ["eslint:recommended", "plugin:react/recommended"]
}
Any ideas how to resolve this warning?
You have the line
import React, { Fragment } from "react";
in your index.js
file, but you aren't using Fragment
anywhere in that file. You can fix this by changing the import line to:
import React from "react";
Edit: Note the identical import
in your App.js
file is perfectly valid, as you are using Fragment
in that file.
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