.eslintrc.json

{
	"env": {
		"es6": true,
		"node": true
	},
	"globals": {},
	"extends": "eslint:recommended",
	"rules": {
		// Overwrite some recommended rules
		"no-constant-condition": ["error", {
			"checkLoops": false
		}],
		"no-console": ["error", {
			"allow": ["warn", "error"]
		}],
		// Additional rules that required changes
		"array-callback-return": ["error", {
			"allowImplicit": true
		}],
		"eqeqeq": "error",
		"no-implicit-coercion": "error",
		"no-self-compare": "error",
		"no-throw-literal": "error",
		"no-useless-return": "error",
		"dot-location": ["error", "property"],
		"no-use-before-define": ["error", {
			"functions": false
		}],
		"callback-return": ["error", ["callback", "cb", "next", "done", "success"]],
		"handle-callback-err": "error",
		"no-buffer-constructor": "error",
		"no-else-return": "warn",
		"camelcase": "error",
		"comma-dangle": ["error", "never"],
		"func-style": ["error", "declaration"],
		"function-paren-newline": ["error", "consistent"],
		"max-depth": "error",
		"max-len": ["error", {
			"code": 120,
			"ignoreStrings": true,
			"ignoreRegExpLiterals": true,
			"ignoreComments": true,
			"ignoreTemplateLiterals": true
		}],
		"new-cap": "error",
		"no-bitwise": "error",
		"no-lonely-if": "error",
		"no-mixed-operators": ["error", {
			"groups": [
				["&", "|", "^", "~", "<<", ">>", ">>>"],
				["==", "!=", "===", "!==", ">", ">=", "<", "<="],
				["&&", "||"],
				["in", "instanceof"]
			]
		}],
		"no-trailing-spaces": ["error", {
			"ignoreComments": true
		}],
		"no-unneeded-ternary": "error",
		"operator-assignment": "error",
		"operator-linebreak": ["error", "after"],
		"quotes": ["error", "single"],
		"semi": ["error", "never"],
		"spaced-comment": "error",
		"arrow-body-style": "error",
		"arrow-parens": ["error", "as-needed"],
		"object-shorthand": "error",
		"prefer-arrow-callback": "error",
		"no-var": "error",
		// Additional rules that caused no harm
		"for-direction": "error",
		"getter-return": "error",
		"no-await-in-loop": "error",
		"no-template-curly-in-string": "error",
		"accessor-pairs": "error",
		"block-scoped-var": "error",
		"curly": "error",
		"dot-notation": "error",
		"no-alert": "error",
		"no-caller": "error",
		"no-div-regex": "error",
		"no-eq-null": "error",
		"no-eval": "error",
		"no-extend-native": "error",
		"no-extra-bind": "error",
		"no-extra-label": "error",
		"no-floating-decimal": "error",
		"no-implicit-globals": "error",
		"no-implied-eval": "error",
		"no-iterator": "error",
		"no-labels": "error",
		"no-lone-blocks": "error",
		"no-loop-func": "error",
		"no-multi-spaces": "error",
		"no-multi-str": "error",
		"no-new": "error",
		"no-new-func": "error",
		"no-new-wrappers": "error",
		"no-octal-escape": "error",
		"no-proto": "error",
		"no-restricted-properties": "error",
		"no-return-await": "error",
		"no-script-url": "error",
		"no-sequences": "error",
		"no-unmodified-loop-condition": "error",
		"no-unused-expressions": "error",
		"no-useless-call": "error",
		"no-useless-concat": "error",
		"no-void": "error",
		"no-with": "error",
		"prefer-promise-reject-errors": "error",
		"radix": "error",
		"require-await": "error",
		"wrap-iife": "error",
		"yoda": "error",
		"strict": "error",
		"no-catch-shadow": "error",
		"no-label-var": "error",
		"no-restricted-globals": "error",
		"no-shadow-restricted-names": "error",
		"no-undef-init": "error",
		"no-unused-vars": "error",
		"no-new-require": "error",
		"no-path-concat": "error",
		"no-process-env": "error",
		"array-bracket-spacing": "error",
		"block-spacing": "error",
		"brace-style": "error",
		"comma-spacing": "error",
		"comma-style": "error",
		"computed-property-spacing": "error",
		"func-call-spacing": "error",
		"func-name-matching": "error",
		"key-spacing": "error",
		"keyword-spacing": "error",
		"lines-between-class-members": "error",
		"max-nested-callbacks": "error",
		"max-statements-per-line": "error",
		"no-array-constructor": "error",
		"no-multiple-empty-lines": "error",
		"no-new-object": "error",
		"no-whitespace-before-property": "error",
		"nonblock-statement-body-position": "error",
		"object-curly-spacing": "error",
		"object-property-newline": "error",
		"padding-line-between-statements": "error",
		"semi-spacing": "error",
		"semi-style": "error",
		"space-before-blocks": "error",
		"space-in-parens": "error",
		"space-unary-ops": "error",
		"switch-colon-spacing": "error",
		"unicode-bom": "error",
		"arrow-spacing": "error",
		"generator-star-spacing": "error",
		"no-duplicate-imports": "error",
		"no-restricted-imports": "error",
		"no-useless-computed-key": "error",
		"no-useless-constructor": "error",
		"no-useless-rename": "error",
		"prefer-numeric-literals": "error",
		"prefer-rest-params": "error",
		"prefer-spread": "error",
		"rest-spread-spacing": "error",
		"sort-imports": "error",
		"symbol-description": "error",
		"template-curly-spacing": "error",
		"yield-star-spacing": "error"
	}
}