.eslintrc.json

{
	"extends": "eslint:recommended",
	"env": {
		"browser": true,
		"commonjs": true,
		"es6": true,
		"node": true
	},
	"parserOptions": {
		"ecmaVersion": 2020,
		"sourceType": "script"
	},
	"rules": {
		"array-bracket-spacing": [ "error", "always" ],
		"arrow-body-style": [ "error", "as-needed" ],
		"arrow-parens": [ "error", "always" ],
		"arrow-spacing": [ "error", {
			"before": true,
			"after": true
		} ],
		"block-spacing": "error",
		"comma-dangle": [ "error", "never" ],
		"constructor-super": "error",
		"indent": [ "error", "tab", {
			"SwitchCase": 1
		} ],
		"no-confusing-arrow": [ "error", {
			"allowParens": true
		} ],
		"no-const-assign": "error",
		"no-extra-semi": [ "error" ],
		"no-multiple-empty-lines": [ "error", {
			"max": 1,
			"maxEOF": 1
		} ],
		"no-this-before-super": "error",
		"no-undef": "error",
		"no-unreachable": "warn",
		"no-unused-vars": "warn",
		"no-use-before-define": [ "error", {
			"functions": false
		} ],
		"no-useless-escape": "error",
		"prefer-const": "error",
		"quotes": [ "error", "single" ],
		"semi": "error",
		"space-in-parens": [ "error", "always" ],
		"space-infix-ops": [ "error", {
			"int32Hint": false
		} ],
		"valid-typeof": "error"
	}
}