My ESLint configuration template.

.eslintrc.json

{
	"root": true,
	"parserOptions": {
		"sourceType": "module"
	},
	"env": {
		"es2020": true,
		"node": true
	},
	"extends": [
		"eslint:recommended"
	],
	"rules": {
		"comma-dangle": [
			"error",
			{
				"arrays": "always-multiline",
				"imports": "always-multiline",
				"objects": "always-multiline"
			}
		],
		"eqeqeq": "error",
		"no-prototype-builtins": "off",
		"no-unused-vars": [
			"error",
			{
				"args": "none"
			}
		],
		"quotes": [
			"error",
			"single"
		],
		"semi-spacing": "error",
		"spaced-comment": "error"
	},
	"ignorePatterns": [
		"PATH_01",
		"PATH_02"
	]
}

README.md

ESLint .eslintrc.json template

Working from a base of eslint:recommended plus a few additions/removals of internal rules.

Reference

• https://eslint.org/docs/latest/use/configure/language-options
• https://eslint.org/docs/latest/rules