.eslintrc.js

module.exports = {
  extends: ["eslint:recommended"],
  env: {
    commonjs: true,
    es2021: true,
    node: true,
  },
  parserOptions: {
    ecmaVersion: 12,
  },
  globals: {
    Atomics: "readonly",
    SharedArrayBuffer: "readonly",
  },
  extends: ["plugin:jest/recommended", "prettier"],
  plugins: ["jest"],
  rules: {
    "no-console": ["error", { allow: ["warn", "error"] }],
  },
  overrides: [
    {
      // enable the rule specifically for TypeScript files
      files: ["*.ts", "*.tsx"],
      env: {
        es6: true,
        node: true,
      },
      extends: [
        "plugin:@typescript-eslint/eslint-recommended",
        "plugin:@typescript-eslint/recommended",
        "plugin:jest/recommended",
        "prettier",
        "prettier/@typescript-eslint",
      ],
      parser: "@typescript-eslint/parser",
      parserOptions: {
        ecmaVersion: 2018,
        sourceType: "module",
      },
      plugins: ["@typescript-eslint", "jest"],
    },
  ],
};