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CHANGELOG.md

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Changelog

v4.0.1

  • Fix flat config issue. See #23. Thanks @MariaSolOs!

v4.0.0

  • Add react- prefix to the flat configuration rule name. When using ESLint's flat configuration, the exported configuration from this package now "react-prefer-function-component". Previously it was "prefer-function-component". Practically speaking, no changes are expected from consumers of this package.

Action would only be necessary if there is an existing plugin in your ESLint configuration using the "react-prefer-function-component" name, or if you're programmatically processing your ESLint configuration and expecting to find "prefer-function-component".

See #20. Thanks @MariaSolOs!

v3.4.0

  • Improved TypeScript type for the configuration object. See #17. Thanks @PrettyCoffee!

v3.3.0

Adds ESLint's new configuration system, flat config. If you're using the new flat config:

`eslint.config.js`:

```js
import eslint from "@eslint/js";
import reactRecommended from "eslint-plugin-react/configs/recommended.js";
import preferFC from "eslint-plugin-react-prefer-function-component/config";

export default [
  { files: ["**/*.{js,jsx}"] },
  eslint.configs.recommended,
  reactRecommended,
  preferFC.configs.recommended,
];
```

v3.2.0

  • The plugin's recommended configuration has been fixed, so plugins can be dropped from your .eslintrc when using the recommended settings:

    module.exports = {
-  plugins: ["react-prefer-function-component"],
  extends: ["plugin:react-prefer-function-component/recommended"],
};

    Thanks @alecmev!

v3.1.0

  • New option: allowJsxUtilityClass. This configuration option permits JSX utility classes: classes that have methods that return JSX but are not themselves components(they do not extend from a Component class or have a render method).

    The following is now permitted when enabling this configuration option:

    class Foo {
  getBar() {
    return <Bar />;
  }
}

    Thanks noahm for the contribution!

v3.0.0

Detects class components that extend the Component class, even if they do not use any JSX. Now errors on manager, business logic, and other renderless class components that extend Component. Previously the below was not caught:

class TimerComponent extends React.Component {
  /// ...

  componentWillMount() {
    this.startTimer();
  }

  componentWillUnmount() {
    this.stopTimer();
  }

  render() {
    null;
  }
}

Thanks @wo1ph for the improvements!

v2.0.0

Support for createClass has been dropped. Usage of createClass will no longer be detected.

Now errors on any JSX usage within a class. Previously the below was not caught:

import Document from "next/document";

class MyDocument extends Document {
  render() {
    <>...</>;
  }
}

v1.0.0

No API changes. This library will now follow semantic versioning.