.eslintrc.js

// eslint-disable-next-line import/no-commonjs
module.exports = {
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:@typescript-eslint/strict',
    'plugin:@typescript-eslint/stylistic',
    'plugin:import/errors',
    'plugin:import/warnings',
    'plugin:import/recommended',
    'plugin:import/typescript',
    'plugin:prettier/recommended',
  ],
  parser: '@typescript-eslint/parser',
  plugins: [
    '@typescript-eslint',
    'import',
  ],
  rules: {
    'prettier/prettier': [
      'error',
      {
        arrowParens: 'always',
        bracketSpacing: true,
        bracketSameLine: false,
        printWidth: 80,
        singleQuote: true,
        trailingComma: 'es5',
        useTabs: false,
        quoteProps: 'as-needed',
      },
    ],
    'no-console': 'off',
    '@typescript-eslint/prefer-optional-chain': 'off',
  },
};