.eslintrc.js

module.exports = {
  env: {
    browser: true,
    node: true,
    es6: true,
  },
  extends: [
    'eslint:recommended',
    'plugin:react/recommended',
    'prettier',
    'plugin:@typescript-eslint/recommended',
    'plugin:prettier/recommended',
  ],
  settings: {
    react: {
      version: 'detect',
    },
  },
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 2018,
    sourceType: 'module',
  },
  plugins: ['@typescript-eslint', 'react', 'prettier'],
  // javascript-specific overrides
  overrides: [
    {
      files: ['*.js'],
      rules: {
        '@typescript-eslint/no-var-requires': 'off',
      },
    },
  ],
  // custom rules go here
  rules: {
    // found to conflict with prettier (run npm run eslint-check)
    '@typescript-eslint/member-delimiter-style': 'off',
    '@typescript-eslint/type-annotation-spacing': 'off',

    // kind of noisy and low value
    '@typescript-eslint/explicit-function-return-type': 'off',
    'react/display-name': 'off',
    '@typescript-eslint/no-use-before-define': 'off',
    '@typescript-eslint/no-explicit-any': 'off',
    'eslint-disable @typescript-eslint/camelcase': 0,
  },
}