eslint.config.js

import js from '@eslint/js';
import ts from 'typescript-eslint';
import svelte from 'eslint-plugin-svelte';
import globals from 'globals';

/** @type { import("eslint").Linter.Config } */
export default [
	js.configs.recommended,
	...ts.configs.recommended,
	...svelte.configs['flat/recommended'],
	{
		languageOptions: {
			globals: {
				...globals.browser,
				...globals.node,
			},
		},
	},
	{
		files: ['**/*.svelte'],
		languageOptions: {
			parserOptions: {
				parser: ts.parser,
			},
		},
	},
	{
		ignores: ['build/', '.svelte-kit/', 'dist/'],
	},
	{
		rules: {
			'svelte/no-at-html-tags': 'off',
			'array-bracket-newline': ['error', 'consistent'],
			'array-bracket-spacing': ['error', 'never'],
			'array-element-newline': ['error', 'consistent'],
			'arrow-parens': ['error', 'as-needed'],
			'arrow-spacing': 'error',
			'block-spacing': ['error', 'always'],
			'brace-style': ['error', '1tbs', { allowSingleLine: true }],
			'comma-dangle': ['error', 'always-multiline'],
			'comma-spacing': ['error', { before: false, after: true }],
			'comma-style': ['error', 'last'],
			'computed-property-spacing': ['error', 'never'],
			'dot-location': ['error', 'property'],
			'eol-last': ['error', 'never'],
			'func-call-spacing': ['error', 'never'],
			'function-call-argument-newline': ['error', 'consistent'],
			'function-paren-newline': ['error', 'consistent'],
			'generator-star-spacing': ['error', { before: false, after: true }],
			'implicit-arrow-linebreak': ['error', 'beside'],
			'indent': ['error', 'tab'],
			'jsx-quotes': ['error', 'prefer-double'],
			'key-spacing': ['error', { beforeColon: false, afterColon: true }],
			'keyword-spacing': ['error', { before: true, after: true }],
			'linebreak-style': ['error', 'unix'],
			'lines-between-class-members': ['error', 'always'],
			'new-parens': ['error', 'never'],
			'no-extra-parens': ['error', 'all', { nestedBinaryExpressions: false }],
			'no-mixed-spaces-and-tabs': 'error',
			'no-multi-spaces': 'error',
			'no-multiple-empty-lines': ['error', { max: 1, maxEOF: 0, maxBOF: 0 }],
			'no-trailing-spaces': 'error',
			'no-whitespace-before-property': 'error',
			'nonblock-statement-body-position': ['error', 'beside'],
			'object-curly-newline': ['error', { multiline: true, consistent: true }],
			'object-curly-spacing': ['error', 'always'],
			'object-property-newline': ['error', { allowAllPropertiesOnSameLine: true }],
			'operator-linebreak': ['error', 'after'],
			'padded-blocks': ['error', 'never'],
			'quotes': ['error', 'single', { avoidEscape: true, allowTemplateLiterals: true }],
			'rest-spread-spacing': ['error', 'never'],
			'semi': ['error', 'always'],
			'semi-spacing': ['error', { 'before': false, 'after': true }],
			'semi-style': ['error', 'last'],
			'space-before-blocks': ['error', 'always'],
			'space-before-function-paren': ['error', { anonymous: 'always', named: 'never', asyncArrow: 'always' }],
			'space-in-parens': ['error', 'never'],
			'space-infix-ops': 'error',
			'space-unary-ops': ['error', { words: true, nonwords: false }],
			'switch-colon-spacing': ['error', { after: true, before: false }],
			'template-curly-spacing': ['error', 'never'],
			'template-tag-spacing': ['error', 'never'],
			'wrap-iife': ['error', 'inside'],
			'yield-star-spacing': ['error', { before: false, after: true }],
			'svelte/indent': ['error', { 'indent': 'tab' }],
			'@typescript-eslint/no-unused-vars': ['warn', { argsIgnorePattern: '^_' }],
			'@typescript-eslint/no-explicit-any': 'warn',
		},
	},
];