eslint.config.mjs

import globals from 'globals';
import js from '@eslint/js';

/** @type {import('eslint').Linter.Config[]} */
export default [
	{
		files: ['**/*.js'],
		ignores: ['umd/**/*.js'],
		...js.configs.recommended,
	},
	{
		files: ['**/*.js'],
		ignores: ['umd/**/*.js'],
		languageOptions: {
			ecmaVersion: 2018,
			sourceType: 'module'
		},
		rules: {
			"indent": [
				"error",
				"tab",
				{
					"SwitchCase": 1
				}
			],
			"linebreak-style": [
				"error",
				"unix"
			],
			"quotes": [
				"error",
				"single"
			],
			"semi": [
				"error",
				"always"
			],
			"no-use-before-define": "error",
			"no-var": "error",
			"prefer-const": "error",
			"prefer-spread": "error",
			"func-style": ["error", "declaration", { "allowArrowFunctions": true }],
			"prefer-arrow-callback": "error",
			"prefer-destructuring": ["error", {"object": true, "array": true}],
			"one-var": ["error", "never"],
			"padding-line-between-statements": [
				"error",
				{ "blankLine": "always", "prev": "*", "next": "return" },
				{ "blankLine": "always", "prev": ["const", "let", "var"], "next": "*"},
				{ "blankLine": "any",    "prev": ["const", "let", "var"], "next": ["const", "let", "var"]}
			]
		}
	},
	{
		languageOptions: {
			globals: {
				...globals.browser,
				...globals.node,
				...globals.mocha,
			}
		}
	},
];