index.js

module.exports = {
  parser: 'typescript-eslint-parser',
  parserOptions: {
    sourceType: 'module',
    jsx: true,
  },

  plugins: ['typescript', 'prettier'],

  extends: [
    'eslint:recommended',
    'typescript-recommended',
    'plugin:prettier/recommended',
  ],
  rules: {
    strict: 0,
    'no-undef': 'error',
    'no-tabs': 'error',

    // This is configured specifically to play well with Prettier. The name is misleading, it *does*
    // allow `template-literal ${strings}`; it just advises you to convert them back into simple
    // single-quotes if there's no interpolation.
    quotes: ['warn', 'single', { avoidEscape: true, allowTemplateLiterals: false }],

    // Noisy rules. Open to debate about these!
    'sort-keys': 'off',

    'prettier/prettier': 'warn',
  },

  env: {
    es6: true,
  },
};