.eslintrc.js

module.exports = {
  root: true,
  parser: '@typescript-eslint/parser',
  env: {
    node: true,
    es6: true,
  },
  parserOptions: {
    sourceType: 'module',
  },
  plugins: ['@typescript-eslint', 'prettier'],
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/eslint-recommended',
    'plugin:@typescript-eslint/recommended',
    'prettier',
  ],
  rules: {
    'prettier/prettier': 'error',
    '@typescript-eslint/no-use-before-define': ['error', { functions: false, classes: false }],
    '@typescript-eslint/no-unused-vars': ['warn'],
    '@typescript-eslint/explicit-function-return-type': [1, { allowExpressions: true }],
    'eol-last': ['error'],
    'space-infix-ops': ['error', { int32Hint: false }],
    'no-multi-spaces': ['error', { ignoreEOLComments: true }],
    'keyword-spacing': ['error'],
  },
};