.eslintrc

{
  "root": true,
  "extends": ["eslint:recommended"],
  "env": {
    "node": true,
    "browser": true,
    "es6": true,
    "jest/globals": true
  },
  "parser": "babel-eslint",
  "parserOptions": {
    "ecmaVersion": 6,
    "ecmaFeatures": {
      "classes": true,
      "jsx": true
    },
    "sourceType": "module"
  },
  "plugins": ["react", "jest"],
  "rules": {
    "strict": 0,
    "eqeqeq": 1,
    "no-console": 1,
    "no-irregular-whitespace": 1,
    "no-use-before-define": [2, "nofunc"],
    "no-unused-vars": [
      1,
      {
        "vars": "all",
        "args": "after-used",
        "argsIgnorePattern": "(^_|^next$)"
      }
    ],
    "arrow-parens": [1, "as-needed"],
    "no-dupe-keys": 2,
    "no-dupe-args": 2,
    "semi": 1,
    "react/no-deprecated": 2,
    "react/no-direct-mutation-state": 2,
    "react/no-multi-comp": 0,
    "react/prefer-stateless-function": 1,
    "react/react-in-jsx-scope": 2,
    "react/jsx-closing-bracket-location": 1,
    "react/jsx-curly-spacing": [2, "never"],
    "react/jsx-equals-spacing": [2, "never"],
    "react/jsx-no-duplicate-props": 2,
    "react/jsx-no-target-blank": 2,
    "react/jsx-no-undef": 2,
    "react/jsx-pascal-case": 2,
    "react/jsx-tag-spacing": [
      2,
      {
        "closingSlash": "never",
        "beforeSelfClosing": "always",
        "afterOpening": "never"
      }
    ],
    "react/jsx-uses-react": 2,
    "react/jsx-uses-vars": 2,
    "react/jsx-wrap-multilines": 1
  }
}