.eslintrc.js

// eslint-disable-next-line no-undef
module.exports = {
  root: true,
  ignorePatterns: ["dist", "example"],
  plugins: ["@typescript-eslint"],
  extends: [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:react-hooks/recommended",
    "prettier",
  ],
  overrides: [
    {
      files: ["*.ts{,x}"],
      parser: "@typescript-eslint/parser",
      parserOptions: {
        // eslint-disable-next-line no-undef
        tsconfigRootDir: __dirname,
        project: ["./tsconfig.json"],
      },
      extends: [
        "plugin:@typescript-eslint/recommended-requiring-type-checking",
      ],
      rules: {
        "@typescript-eslint/prefer-nullish-coalescing": "error",
        "@typescript-eslint/no-unnecessary-condition": "error",
        "@typescript-eslint/prefer-optional-chain": "error",
      },
    },
  ],
};