.eslintrc

{
  //   ╔═╗╔═╗╦  ╦╔╗╔╔╦╗┬─┐┌─┐
  //   ║╣ ╚═╗║  ║║║║ ║ ├┬┘│
  //  o╚═╝╚═╝╩═╝╩╝╚╝ ╩ ┴└─└─┘
  // A set of basic code conventions designed to encourage quality and consistency
  // across your Sails app's code base.  These rules are checked against
  // automatically any time you run `npm test`.
  //
  // > An additional eslintrc override file is included in the `assets/` folder
  // > right out of the box.  This is specifically to allow for variations in acceptable
  // > global variables between front-end JavaScript code designed to run in the browser
  // > vs. backend code designed to run in a Node.js/Sails process.
  //
  // > Note: If you're using mocha, you'll want to add an extra override file to your
  // > `test/` folder so that eslint will tolerate mocha-specific globals like `before`
  // > and `describe`.
  // Designed for ESLint v4.
  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  // For more information about any of the rules below, check out the relevant
  // reference page on eslint.org.  For example, to get details on "no-sequences",
  // you would visit `http://eslint.org/docs/rules/no-sequences`.  If you're unsure
  // or could use some advice, come by https://sailsjs.com/support.
  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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

  "parserOptions": {
    "ecmaVersion": 2018
  },

  "globals": {
    // If "no-undef" is enabled below, be sure to list all global variables that
    // are used in this app's backend code (including the globalIds of models):
    // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    "Promise": true,
    "sails": true,
    "_": true
    // …and any others (e.g. `"Organization": true`)
    // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  },

  "rules": {
    "block-scoped-var":             ["error"],
    "callback-return":              ["error", ["done", "proceed", "next", "onwards", "callback", "cb"]],
    "camelcase":                    ["error", {"properties":"always"}],
    "comma-style":                  ["error", "last"],
    "curly":                        ["error"],
    "eqeqeq":                       ["error", "always"],
    "eol-last":                     ["error"],
    "handle-callback-err":          ["error"],
    "indent":                       ["error", 2, {
      "SwitchCase": 1,
      "MemberExpression": "off",
      "FunctionDeclaration": {"body":1, "parameters":"off"},
      "FunctionExpression": {"body":1, "parameters":"off"},
      "CallExpression": {"arguments":"off"},
      "ArrayExpression": 1,
      "ObjectExpression": 1,
      "ignoredNodes": ["ConditionalExpression"]
    }],
    "linebreak-style":              ["error", "unix"],
    "no-dupe-keys":                 ["error"],
    "no-duplicate-case":            ["error"],
    "no-extra-semi":                ["error"],
    "no-labels":                    ["error"],
    "no-mixed-spaces-and-tabs":     [2, "smart-tabs"],
    "no-redeclare":                 ["error"],
    "no-return-assign":             ["error", "always"],
    "no-sequences":                 ["error"],
    "no-trailing-spaces":           ["error"],
    "no-undef":                     ["off"],
    // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    // ^^Note: If this "no-undef" rule is enabled (set to `["error"]`), then all model globals
    // (e.g. `"Organization": true`) should be included above under "globals".
    // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    "no-unexpected-multiline":      ["error"],
    "no-unreachable":               ["error"],
    "no-unused-vars":               ["error", {"caughtErrors":"all", "caughtErrorsIgnorePattern": "^unused($|[A-Z].*$)", "argsIgnorePattern": "^unused($|[A-Z].*$)", "varsIgnorePattern": "^unused($|[A-Z].*$)" }],
    "no-use-before-define":         ["error", {"functions":false}],
    "one-var":                      ["error", "never"],
    "prefer-arrow-callback":        ["error", {"allowNamedFunctions":true}],
    "quotes":                       ["error", "single", {"avoidEscape":false, "allowTemplateLiterals":true}],
    "semi":                         ["error", "always"],
    "semi-spacing":                 ["error", {"before":false, "after":true}],
    "semi-style":                   ["error", "last"]
  }

}