.eslintrc.json

{
  "env": {
    "es6": true,
    "jasmine": true,
    "node": true,
    "browser": true,
    "jest": true
  },
  "parserOptions": {
    "ecmaVersion": 2018,
    "noInlineConfig": true,
    "reportUnusedDisableDirectives": true
  },
  "rules": {
    "arrow-body-style": "error",
    "arrow-spacing": ["warn", {"before": true, "after": true}],
    "brace-style": "error",
    "camelcase": ["error", {"properties": "never"}],
    "complexity": ["error", 5],
    "eol-last": "warn",
    "eqeqeq": "error",
    "func-call-spacing": ["error", "never"],
    "global-require": "error",
    "handle-callback-err": "warn",
    "indent": ["warn", "tab", {"SwitchCase": 1}],
    "key-spacing": ["error", {"beforeColon": false, "afterColon": true}],
    "linebreak-style": ["warn", "unix"],
    "max-depth": ["error", 3],
    "max-len": ["warn", { "code": 120, "tabWidth": 4 }],
    "max-lines": ["warn", {"max": 150, "skipBlankLines": true, "skipComments": true}],
    "max-lines-per-function": ["warn", {"max": 20, "skipBlankLines": true, "skipComments": true}],
    "max-nested-callbacks": ["error", 4],
    "max-params": ["error", 5],
    "max-statements": ["error", 20],
    "no-cond-assign": "error",
    "no-dupe-args": "error",
    "no-dupe-keys": "error",
    "no-duplicate-case": "error",
    "no-empty": "warn",
    "no-empty-function": "error",
    "no-multiple-empty-lines": "warn",
    "no-extra-parens": "error",
    "no-func-assign": "error",
    "no-irregular-whitespace": "error",
    "no-magic-numbers": ["warn", {"ignore": [-1, 0, 1]}],
    "no-multi-spaces": "warn",
    "no-multi-str": "off",
    "no-unexpected-multiline": "error",
    "no-unreachable": "error",
    "no-self-assign": "error",
    "no-trailing-spaces": "warn",
    "no-undef": "error",
    "no-unused-vars": "warn",
    "no-var": 2,
    "prefer-arrow-callback": "warn",
    "prefer-const": "error",
    "prefer-template": "error",
    "quotes": ["warn", "single"],
    "semi": ["warn", "never"],
    "space-before-blocks": ["error", { "functions": "always", "keywords": "always", "classes": "always" }],
    "space-before-function-paren": ["error", "never"],
    "strict": ["error", "global"],
    "yoda": "error"
  },
	"overrides": [{
		"files": [ "*.test.js", "*.spec.js", "*.steps.js" ],
		"rules": {
      "global-require": "off",
			"max-lines-per-function": "off",
			"max-lines": "off",
			"max-statements": "off",
			"no-magic-numbers": "off"
		}
	}]
}