Common Dev Dependencies and Their Configurations (ESLint and Prettier). Check all four files inside this gist. TL-DR: yarn add -D babel-eslint babel-plugin-module-resolver eslint eslint-config-airbnb eslint-config-prettier eslint-plugin-import eslint-plugin-prettier eslint-plugin-react eslint-plugin-react-hooks gatsby-plugin-eslint eslint-loader…

.eslintignore

node_modules
.next

.eslintrc

{
  "env": {
    "browser": true,
    "commonjs": true,
    "es6": true,
    "node": true,
    "jest": true
  },
  "plugins": [
    "react",
    "react-hooks",
    "prettier"
  ],
  "extends": [
    "airbnb",
    "prettier",
    "plugin:prettier/recommended",
    "plugin:react/recommended",
    "prettier/react"
  ],
  "parser": "babel-eslint",
  "parserOptions": {
    "sourceType": "module",
    "ecmaVersion": 2018,
    "allowImportExportEverywhere": false,
    "codeFrame": false,
    "ecmaFeatures": {
      "jsx": true
    },
  },
  "settings": {
    "react": {
      "version": "detect"
    }
  },
  "rules": {
    // React specifics
    "react/no-unused-prop-types": 0,
    "react-hooks/rules-of-hooks": "error",
    "react-hooks/exhaustive-deps": "warn",
    "react/button-has-type": 0,
    "react/jsx-filename-extension": ["off"],
    "react/prop-types": "warn",
    // ESLint specifics
    "max-len": ["error", {"code": 100}],
    "prefer-promise-reject-errors": ["off"],
    "no-nested-ternary": "off",
    "no-return-assign": ["off"],
    "no-shadow": "off",
    "no-lonely-if": "warn",
    "consistent-return": "off",
    "no-use-before-define": "warn",
    "no-underscore-dangle": "off",
    "no-unused-vars": "warn",
    "import/no-unresolved": "off",
    "no-unused-expressions": "off",
    "radix": "off",
    "spaced-comment": "off",
    "jsx-a11y/alt-text": "warn",
    "jsx-a11y/click-events-have-key-events": "warn",
    "jsx-a11y/no-static-element-interactions": "warn",
    "jsx-a11y/no-noninteractive-element-interactions": "warn",
    "prettier/prettier": "error",
    "arrow-parens": ["error", "always"]
  }
}

.prettierignore

package-lock.json
.next
node_modules/

.prettierrc

{
  "trailingComma": "es5",
  "tabWidth": 4,
  "endOfLine": "lf",
  "printWidth": 100,
  "semi": true,
  "singleQuote": true,
  "arrowParens:": "always"
}

packages.txt

yarn add -D babel-eslint babel-plugin-module-resolver eslint eslint-config-airbnb eslint-config-prettier eslint-plugin-import eslint-plugin-prettier eslint-plugin-react eslint-plugin-react-hooks eslint-loader prettier pretty-quick gatsby-plugin-eslint