.eslintrc.json

{
  "root": true,
  "parser": "@typescript-eslint/parser",
  "plugins": ["@typescript-eslint", "eslint-comments"],
  "ignorePatterns": [
    "node_modules",
    "dist",
    // test files
    "*.test.*",
    "*.spec.*",
    // generated code
    "grafbase/edgedb/dbschema/edgeql-js"
  ],
  "parserOptions": {
    "ecmaVersion": "latest",
    "project": ["./tsconfig.json"],
    "tsconfigRootDir": ".",
    "sourceType": "module"
  },
  "rules": {
    /*
      detect unimplemented/leftover/unnecessary code
    */
    // "no-console": "warn",
    "no-debugger": "warn",
    "require-await": "warn",
    "prefer-const": "warn",
    "@typescript-eslint/no-unused-vars": [
      "warn",
      {
        "argsIgnorePattern": "^_",
        "varsIgnorePattern": "^_",
        "caughtErrorsIgnorePattern": "^_"
      }
    ],
    "@typescript-eslint/no-unnecessary-boolean-literal-compare": "warn",
    "@typescript-eslint/no-unnecessary-condition": "warn",
    "@typescript-eslint/no-unnecessary-qualifier": "warn",
    "@typescript-eslint/no-unnecessary-type-arguments": "warn",
    "@typescript-eslint/no-unnecessary-type-assertion": "warn",
    "@typescript-eslint/no-unnecessary-type-constraint": "warn",
    "@typescript-eslint/no-useless-empty-export": "warn",
    "@typescript-eslint/no-empty-function": "warn",
    "no-empty": "warn",
    "@typescript-eslint/no-unused-expressions": [
      "warn",
      { "allowShortCircuit": true, "allowTernary": true }
    ],
    "eslint-comments/no-unused-disable": "warn",
    /*
      prevent unexpected behavior
    */
    "@typescript-eslint/ban-types": "warn",
    "@typescript-eslint/switch-exhaustiveness-check": "warn",
    "no-fallthrough": ["warn", { "allowEmptyCase": true }],
    "no-shadow": "warn"
  }
}