.eslintrc

{
  "extends": "eslint:recommended",
  "env": {
    "node": true,
    "mocha": true
  },
  "rules": {

    // relaxed restrictions
    "no-mixed-requires": 0,
    "no-underscore-dangle": 0,
    "no-shadow": 0,
    "no-use-before-define": [2, "nofunc"],
    "camelcase": [2, {"properties": "never"}],
    "curly": 0,
    "eqeqeq": 0,
    "new-parens": 0,
    "quotes": [2, "single", "avoid-escape"],
    "semi": [2, "never"],
    "strict": 0,

    // extra restrictions
    "no-empty-character-class": 2,
    "no-extra-parens": [2, "functions"],
    "no-floating-decimal": 2,
    "no-lonely-if": 2,
    "no-self-compare": 2,
    "no-throw-literal": 2,
    "no-unused-vars": 2,

    // style
    "array-bracket-spacing": [2, "never"],
    "brace-style": [2, "1tbs", {"allowSingleLine": true}],
    "comma-dangle": [2, "always-multiline"],
    "comma-style": [2, "last"],
    "consistent-this": [2, "self"],
    "object-curly-spacing": [2, "never"],
    "operator-assignment": [2, "always"],
    "operator-linebreak": [2, "after"],
    "keyword-spacing": 2,
    "space-before-blocks": [2, "always"],
    "space-before-function-paren": [2, "never"],
    "space-in-parens": [2, "never"],
    "spaced-comment": [2, "always"]
  }
}