.eslintrc

{
  "root": true,
  "parser": "@babel/eslint-parser",
  "extends": "airbnb-base",
  "plugins": ["prettier"],
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "globals": {
    "window": true,
    "document": true
  },
  "rules": {
    "prettier/prettier": ["warn"],
    // disable requiring trailing commas because it might be nice to revert to
    // being JSON at some point, and I don't want to make big changes now.
    "comma-dangle": 0,
    "no-unused-vars": [2, { "vars": "all", "args": "after-used" }],
    "max-len": 0,
    "semi": ["error", "never"],
    "no-console": [
      "warn",
      {
        "allow": ["warn", "error"]
      }
    ],
    "template-curly-spacing": "off",
    "indent": [
      "off",
      2,
      {
        "SwitchCase": 1,
        "ignoredNodes": ["TemplateLiteral"]
      }
    ],
    "no-void": ["off", { "allowAsStatement": true }],
    "operator-linebreak": "off",
    "no-param-reassign": ["off", { "props": true }],
    "no-unused-expressions": ["error", {
      "allowShortCircuit": true
    }],
    "object-curly-newline": "off",
    "no-control-regex": "off",
    "arrow-body-style": "off",
    "no-new": "off",
    "class-methods-use-this": "off",
    "consistent-return": "warn"
  }
}