.eslintrc.json

{
  "env": {
    "browser": true,
    "node": true
  },

  "globals": {
    "lunr": true
  },

  "extends": "eslint:recommended",

  "plugins": [
    "spellcheck"
  ],

  "rules": {
    "spellcheck/spell-checker": [1,
      {
        "lang": "en_GB",
        "skipWords": [
          "lunr", "val", "param", "idx", "utils", "namespace", "eslint", "latin",
          "str", "len", "sqrt", "wildcard", "concat", "metadata", "fn", "params",
          "lexeme", "lex", "pos", "typedef", "wildcards", "lexemes", "fns", "stemmer",
          "attrs", "tf", "idf", "lookups", "whitelist", "whitelisted", "tokenizer",
          "whitespace", "automata", "i", "obj", "anymore", "lexer", "var", "refs",
          "serializable", "tis", "twas", "int", "args", "unshift", "plugins", "upsert",
          "upserting"
        ]
      }
    ],

    "no-constant-condition": [
      "error",
      { "checkLoops": false }
    ],

    "no-redeclare": "off",

    "dot-location": [
      "error",
      "property"
    ],

    "no-alert": "error",
    "no-caller": "error",
    "no-eval": "error",
    "no-implied-eval": "error",
    "no-extend-native": "error",
    "no-implicit-globals": "error",
    "no-multi-spaces": "error",
    "array-bracket-spacing": "error",
    "block-spacing": "error",

    "brace-style": [
      "error",
      "1tbs",
      { "allowSingleLine": true }
    ],

    "camelcase": "error",
    "comma-dangle": "error",
    "comma-spacing": "error",
    "comma-style": "error",
    "computed-property-spacing": "error",
    "func-style": "error",

    "indent": [
      "error",
      2,
      { "VariableDeclarator": 2, "SwitchCase": 1 }
    ],

    "key-spacing": "error",
    "keyword-spacing": "error",
    "linebreak-style": "error",
    "new-cap": "error",
    "no-trailing-spaces": "error",
    "no-whitespace-before-property": "error",
    "semi": ["error", "never"],
    "space-before-function-paren": ["error", "always"],
    "space-in-parens": "error",
    "space-infix-ops": "error"
  }
}