.eslintrc

{
  "extends": [
    "airbnb-base",
    "plugin:jasmine/recommended"
  ],
  "plugins": [
    "jasmine"
  ],
  "rules": {
    // Jasmine
    "jasmine/no-spec-dupes": ["warn", "branch"],
    "jasmine/no-suite-dupes":  ["warn", "branch"],

    // Best practices
    "valid-jsdoc": ["warn", {
      "requireReturn": false,
      "requireParamDescription": false,
      "requireReturnDescription": false,
      "prefer": {
        "returns": "return",
        "params": "param"
      }
    }],
    "complexity": ["warn", 7], // Warn about excessive complexity
    "no-param-reassign": ["error", { "props": false }], // To enable request.params.something = ...;
    "no-underscore-dangle": ["error", { "allowAfterThis": true }], // To enable this._p = 'value';

    // Style
    "object-shorthand": ["error", "always", { "avoidQuotes": true }],
    "quote-props": ["error", "consistent"], // All quotes or no quotes in a single object
    "comma-dangle": ["warn", "never"], // Disallow trailing comma in the last element of a list
    "padded-blocks": "off", // Allow spaces at the beginning of blocks
    "newline-per-chained-call": "off", // Allow chaining in a single line: Joi.string().required()
    "consistent-return": "off", // Allow if (error) { return ... } and no final return
    "arrow-body-style": "off" // Allow arrow functions with only a return statement
  }
}