.eslintrc.json

{
    "root": true,
    "env": {
        "node": true,
        "browser": true,
        "vue/setup-compiler-macros": true
    },
    "extends": [
        "plugin:vue/vue3-strongly-recommended",
        "eslint:recommended",
        /** @see https://github.com/typescript-eslint/typescript-eslint/tree/master/src/eslint-plugin#recommended-configs */
        "plugin:@typescript-eslint/recommended"
    ],
    "parserOptions": {
        "parser": "@typescript-eslint/parser",
        "ecmaVersion": 12,
        "sourceType": "module",
        "project": ["tsconfig.json"],
        "extraFileExtensions": [".vue", ".svelte"]
    },
    "plugins": ["vue","svelte3", "@typescript-eslint"],
    "overrides": [
        {
            "files": ["*.svelte"],
            "processor": "svelte3/svelte3"
        },
        {
            "files": ["*.vue"],
            "parser": "vue-eslint-parser",
            "rules": {
                "vue/html-indent": ["error", 4],
                "vue/singleline-html-element-content-newline": ["off"],
                "vue/attributes-order": ["error", {
                    "order": [
                        "DEFINITION",
                        "LIST_RENDERING",
                        "CONDITIONALS",
                        "RENDER_MODIFIERS",
                        "GLOBAL",
                        "UNIQUE",
                        "TWO_WAY_BINDING",
                        "OTHER_DIRECTIVES",
                        "OTHER_ATTR",
                        "EVENTS",
                        "CONTENT"
                    ]
                }]
            }
        }
    ],
    "ignorePatterns": ["types/env.d.ts", "node_modules/**", "**/dist/**", "**/components.d.ts", "**/*.css.d.ts"],
    "settings": {
        "svelte3/typescript": true // load TypeScript as peer dependency
    },
    "rules": {
        "svelte/unused-export-let": "off",
        "@typescript-eslint/no-unused-vars": [
            "error",
            {
            "argsIgnorePattern": "^_",
            "varsIgnorePattern": "^_",
            "caughtErrorsIgnorePattern": "^_"
            }
        ],
        "@typescript-eslint/no-var-requires": "off",
        "@typescript-eslint/consistent-type-imports": "error",
        "semi": ["error", "always"],
        "comma-dangle": ["error", "always-multiline"],
        "quotes": ["error", "single"],
        "no-undef": "error",
        "indent": ["error", 4],
        "no-console": "error",
        "no-debugger": "error",
        "vue/valid-template-root": "off",
        "vue/max-attributes-per-line": "off"
    },
    "globals": {
        "CSSModuleClasses": true
    }
}