.eslintrc.json

{
  "env": {
    "node": true,
    "es2022": true,
    "browser": true
  },
  "extends": ["eslint:recommended", "plugin:astro/recommended", "plugin:astro/jsx-a11y-strict"],
  "parserOptions": {
    "ecmaVersion": "latest",
    "sourceType": "module"
  },
  "rules": {},
  "overrides": [
    {
      "files": ["*.astro"],
      "parser": "astro-eslint-parser",
      "parserOptions": {
        "parser": "@typescript-eslint/parser",
        "extraFileExtensions": [".astro"]
      },
      "env": {
        "node": true,
        "astro/astro": true,
        "es2020": true
      },
      "rules": {
        "no-mixed-spaces-and-tabs": ["error", "smart-tabs"]
      }
    },
    {
      "files": ["*.js"],
      "rules": {
        "no-mixed-spaces-and-tabs": ["error", "smart-tabs"]
      }
    },
    {
      "files": ["*.ts"],
      "parser": "@typescript-eslint/parser",
      "extends": ["plugin:@typescript-eslint/recommended"],
      "rules": {
        "@typescript-eslint/no-unused-vars": [
          "error",
          { "argsIgnorePattern": "^_", "destructuredArrayIgnorePattern": "^_" }
        ]
      }
    },
    {
      "files": ["**/*.astro/*.js", "*.astro/*.js"],
      "parser": "@typescript-eslint/parser"
    }
  ]
}