.eslintrc

{
  "parser": "babel-eslint",
  "extends": [
    "airbnb-base"
  ],
  "root": true,
  "env": {
    "browser": true,
    "node": true
  },
  //https://github.com/airbnb/javascript/blob/master/packages/eslint-config-airbnb-base/rules/style.js
  "rules": {
    "class-methods-use-this": "off",
    "no-new": "off",
    "no-param-reassign": "off",
    "no-underscore-dangle": [
      "error",
      {
        "allowAfterThis": true
      }
    ],
    "max-len": [
      "error",
      120,
      2,
      {
        "ignoreUrls": true,
        "ignoreComments": true,
        "ignoreRegExpLiterals": true,
        "ignoreStrings": true,
        "ignoreTemplateLiterals": true
      }
    ],
    "no-restricted-syntax": [
      "error",
      {
        "selector": "ForInStatement",
        "message": "for..in loops iterate over the entire prototype chain, which is virtually never what you want. Use Object.{keys,values,entries}, and iterate over the resulting array."
      },
      //Only forOfStatement is allowed on this project
      //      {
      //        "selector": "ForOfStatement",
      //        "message": "iterators/generators require regenerator-runtime, which is too heavyweight for this guide to allow them. Separately, loops should be avoided in favor of array iterations."
      //      },
      {
        "selector": "LabeledStatement",
        "message": "Labels are a form of GOTO; using them makes code confusing and hard to maintain and understand."
      },
      {
        "selector": "WithStatement",
        "message": "`with` is disallowed in strict mode because it makes code impossible to predict and optimize."
      }
    ]
  }
}