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eslint-config-universe

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eslint-config-universe

Shared ESLint configs for Node, Web, React Native, and Expo projects

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eslint-config-expo

Shared ESLint configs for Node, Web, React Native, and Expo projects.

Installation

yarn add --dev eslint-config-universe

You will also need to install eslint and prettier:

yarn add --dev eslint prettier

Usage

Import this config into your own ESLint configuration using the extends option. ESLint checks both package.json and .eslintrc.* files for its configuration:

package.json

{
  "eslintConfig": {
    // Choose from universe/native, universe/node, universe/web
    "extends": "universe"
  }
}

.eslintrc.js

module.exports = {
  extends: 'universe',
};

Customizing Prettier

If you would like to customize the Prettier settings, create a file named .prettierrc in your project directory. This file must declare a Prettier configuration like this:

{
  "printWidth": 100,
  "tabWidth": 2,
  "singleQuote": true,
  "jsxBracketSameLine": true,
  "trailingComma": "es5"
}

Support for Different Platforms

There are several configs for different platforms. They are:

  • universe: the basic config for JavaScript projects for which there isn't a more specific config
  • universe/native: the config for React Native projects, including Expo projects, with support for React and JSX
  • universe/web: the config for code that runs in web browsers, with support for React and JSX
  • universe/node: the config for code that runs in Node

For an Expo project, your configuration might look like this:

"eslintConfig": {
  "extends": "universe/native"
}

You also can extend multiple configs, which is useful for projects that span several platforms:

"eslintConfig": {
  "extends": ["universe/node", "universe/web"]
}

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Package last updated on 15 Aug 2017

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