.eslintrc.json

{
  "env": {
    "es6": true,
    "node": true,
    "browser": true,
    "mocha": true
  },
  "extends": "eslint:recommended",
  "rules": {
    "no-useless-return": "error",
    "no-undefined": "error",
    "no-undef-init": "error",
    "no-eq-null": "error",
    "eqeqeq": "error",
    "no-alert": "error",
    "no-caller": "error",
    "no-shadow": "error",
    "no-new-func": "error",
    "default-case": "error",
    "comma-spacing": "error",
    "no-shadow-restricted-names": "error",
    "no-path-concat": "error",
    "no-use-before-define": "error",
    "no-duplicate-imports":"error",
    "no-useless-rename":"error",
    "space-in-parens":"error",
    "no-multiple-empty-lines": ["error", {"max":2, "maxEOF": 0, "maxBOF":1}],
    "space-before-function-paren": ["error", {
      "anonymous": "always",
      "named": "never",
      "asyncArrow": "always"
    }],
    "max-params":["error", 5],
    "key-spacing":"error",
    "strict": ["error", "global"],
    "prefer-promise-reject-errors":"error",
    "camelcase": ["error", { "properties": "never" }],
    "no-unused-vars": ["warn", { "vars": "all", "args": "after-used"}],
    "max-len": [
      "error",
      160,
      {
        "ignoreComments": true,
        "ignoreTrailingComments": true,
        "ignoreRegExpLiterals": true
      }
    ],
    //"no-mixed-spaces-and-tab": ["error", "smart-tabs"],
    "no-console": 0,
    "quotes": [
      "error",
      "single",
      {
        "allowTemplateLiterals": true,
        "avoidEscape": true
      }
    ],
    "semi": [
      "error",
      "always"
    ],
    //ES6 specific
    "arrow-spacing": "error",
    "template-curly-spacing": "error",

    //Rules to tighten below
    "complexity": ["error", 12], //Want to up this to like 5
    "arrow-body-style": ["off", "as-needed", {"requireReturnForObjectLiteral" : true}],
    "no-regex-spaces": "off",
    "no-var":"off",
    "prefer-arrow-callback": "off",
    "indent": [
      "off",
      "tab"
    ]
  }
}