.eslintrc.json

{
	"root": true,
	"env": {
		"browser": true
	},
	"extends": "eslint:recommended",
	"parserOptions": {
			"ecmaVersion": 2017,
			"sourceType": "module"
	},
	"rules": {
		"no-multiple-empty-lines": "warn",
		"indent": ["error", "tab", { "SwitchCase": 1 }],
		"quotes": ["error", "single"],
		"semi": ["error", "always"],
		"no-undef": ["off", "false"],
		"no-console": "warn",
		"no-multi-spaces": "error",
		"block-spacing": "error",
		"brace-style": ["error", "1tbs"],
		"func-call-spacing": ["error", "never"],
		"object-curly-spacing": ["error", "always"],
		"space-in-parens": ["error", "never"],
		"space-before-blocks": ["error", "always"],
		"space-before-function-paren": ["error", "never"],
		"no-trailing-spaces": ["error"],
		"max-lines": ["warn", 300],
		"max-lines-per-function": ["warn", 25],
		"complexity": ["warn", 6],
		"max-nested-callbacks": ["warn", 2],
		"max-depth": ["warn", 3],
		"no-param-reassign": "error"
	}
}