base eslintrc

.eslintrc

{
  "extends": [
    "airbnb-base",
    "prettier"
  ],
  "parserOptions": {
    "ecmaVersion": 8,
    "ecmaFeatures": {
      "classes": true
    }
  },
  "env": {
    "jest": true,
    "node": true
  },
  "rules": {
    "arrow-body-style": [
      "error",
      "as-needed"
    ],
    "comma-dangle": "off",
    "import/extensions": [
      "error",
      {
        "js": "never",
        "json": "never"
      }
    ],
    "jest/no-disabled-tests": "warn",
    "jest/no-focused-tests": "error",
    "jest/no-identical-title": "error",
    "jest/prefer-to-have-length": "warn",
    "jest/prefer-to-be-null": "warn",
    "jest/prefer-to-be-undefined": "warn",
    "jest/valid-expect": "error",
    "max-len": "off",
    "max-nested-callbacks": [
      "warn",
      5
    ],
    "max-params": [
      "warn",
      {
        "max": 4
      }
    ],
    "no-console": "off",
    "no-param-reassign": [
      "error",
      {
        "props": false
      }
    ],
    "no-plusplus": [
      "error",
      {
        "allowForLoopAfterthoughts": true
      }
    ],
    "no-shadow": [
      "error",
      {
        "hoist": "all",
        "allow": [
          "resolve",
          "reject",
          "done",
          "next",
          "err",
          "error"
        ]
      }
    ],
    "no-unused-vars": "error",
    "no-warning-comments": [
      "warn",
      {
        "terms": [
          "todo",
          "fixme",
          "hack"
        ],
        "location": "anywhere"
      }
    ],
    "prettier/prettier": [
      "error",
      {
        "trailingComma": "es5",
        "singleQuote": true,
        "printWidth": 120
      }
    ],
    "quotes": [
      "error",
      "single",
      {
        "avoidEscape": true,
        "allowTemplateLiterals": true
      }
    ],
    "require-jsdoc": [
      "error",
      {
        "require": {
          "FunctionDeclaration": true,
          "MethodDefinition": true,
          "ClassDeclaration": true,
          "ArrowFunctionExpression": true,
          "FunctionExpression": true
        }
      }
    ],
    "space-before-function-paren": "off",
    "valid-jsdoc": [
      "error",
      {
        "requireReturn": false,
        "requireParamDescription": true,
        "requireReturnDescription": true
      }
    ]
  },
  "plugins": [
    "jest",
    "prettier"
  ]
}