eslint.config.js

import js from '@eslint/js'
import svelte from 'eslint-plugin-svelte'
import globals from 'globals'
import ts from 'typescript-eslint'
import svelteConfig from './svelte.config.js'
import { defineConfig } from 'eslint/config'

export default defineConfig(
    js.configs.recommended,
    ...ts.configs.recommended,
    ...svelte.configs.recommended,
    {
        languageOptions: {
            globals: {
                ...globals.browser,
            },
        },
    },
    {
        files: ['**/*.svelte', '**/*.svelte.ts', '**/*.svelte.js'],
        // See more details at: https://typescript-eslint.io/packages/parser/
        languageOptions: {
            parserOptions: {
                projectService: true,
                extraFileExtensions: ['.svelte'], // Add support for additional file extensions, such as .svelte
                parser: ts.parser,
                // Specify a parser for each language, if needed:
                // parser: {
                //   ts: ts.parser,
                //   js: espree,    // Use espree for .js files (add: import espree from 'espree')
                //   typescript: ts.parser
                // },

                // We recommend importing and specifying svelte.config.js.
                // By doing so, some rules in eslint-plugin-svelte will automatically read the configuration and adjust their behavior accordingly.
                // While certain Svelte settings may be statically loaded from svelte.config.js even if you don’t specify it,
                // explicitly specifying it ensures better compatibility and functionality.
                svelteConfig,
            },
        },
    },
    {
        rules: {
            'svelte/require-each-key': 'off',
            'svelte/no-navigation-without-resolve': 'off',
            'prefer-const': 'off',
            '@typescript-eslint/no-explicit-any': 'off',

            'svelte/no-reactive-reassign': 'warn',
            'svelte/infinite-reactive-loop': 'warn',
            'no-useless-assignment': 'warn',

            '@typescript-eslint/no-unused-vars': [
                'error',
                {
                    argsIgnorePattern: '^_',
                    varsIgnorePattern: '^_',
                    caughtErrorsIgnorePattern: '^_',
                },
            ],
        },
    }
)