.eslintrc.js

const path = require('path');

module.exports = {
	extends: ["standard"],
	plugins: ["standard", "react"],
	rules: {
		"no-var": "error", // optional, recommended when using es6+
		"no-unused-vars": 1, // recommended
		"arrow-spacing": ["error", { before: true, after: true }], // recommended
		indent: ["error", 2],
		"comma-dangle": [
			"error",
			{
				objects: "only-multiline",
				arrays: "only-multiline",
				imports: "never",
				exports: "never",
				functions: "never",
			},
		],

		// options to emulate prettier setup
		semi: ["error", "never"],
		"max-len": ["error", { code: 80 }],
		"template-curly-spacing": ["error", "always"],
		"arrow-parens": ["error", "as-needed"],

		// standard.js
		"space-before-function-paren": [
			"error",
			{
				named: "always",
				anonymous: "always",
				asyncArrow: "always",
			},
		],

		// standard plugin - options
		"standard/object-curly-even-spacing": ["error", "either"],
		"standard/array-bracket-even-spacing": ["error", "either"],
		"standard/computed-property-even-spacing": ["error", "even"],
		"standard/no-callback-literal": ["error", ["cb", "callback"]],

		// react plugin - options
		"react/jsx-uses-react": "error",
		"react/jsx-uses-vars": "error",
	},
	'prettier/prettier': ['error'],
	parser: "babel-eslint",
	parserOptions: {
		ecmaVersion: 8, // optional, recommended 6+
	},
}