.eslintrc.js

module.exports = {
  env: {
    node: true,
    commonjs: true,
    es6: true,
    "jest/globals": true
  },
  plugins: ["prettier", "jest", "@typescript-eslint"],
  parser: '@typescript-eslint/parser',
  settings: {
    'import/parsers': {
      '@typescript-eslint/parser': ['.ts', '.tsx'],
    },
    'import/resolver': {
      typescript: {},
    },
  },
  extends: [
    "eslint:recommended",
    'plugin:@typescript-eslint/eslint-recommended',
    'plugin:@typescript-eslint/recommended',
    "plugin:prettier/recommended"
  ],
  globals: {
    Atomics: "readonly",
    SharedArrayBuffer: "readonly"
  },
  parserOptions: {
    project: './tsconfig.json',
    tsconfigRootDir: './',
    sourceType: 'module',
    ecmaVersion: 2019,
  },
  rules: {
    "jest/no-disabled-tests": "warn",
    "jest/no-focused-tests": "error",
    "jest/no-identical-title": "error",
    "jest/prefer-to-have-length": "warn",
    "jest/valid-expect": "error"
  }
};