.eslintrc.js

module.exports = {
  ignorePatterns: ['src/**/*.test.ts'],
  env: {
    es6: true,
    node: true,
  },
  parser: '@typescript-eslint/parser',
  parserOptions: {
    project: 'tsconfig.json',
    sourceType: 'module',
  },
  plugins: ['eslint-plugin-no-null', 'eslint-plugin-react', '@typescript-eslint'],
  root: true,
  rules: {
    '@typescript-eslint/array-type': [
      'error',
      {
        default: 'generic',
      },
    ],
    '@typescript-eslint/dot-notation': 'error',
    '@typescript-eslint/indent': 'off',
    '@typescript-eslint/member-delimiter-style': [
      'off',
      {
        multiline: {
          delimiter: 'none',
          requireLast: true,
        },
        singleline: {
          delimiter: 'semi',
          requireLast: false,
        },
      },
    ],
    '@typescript-eslint/naming-convention': [
      'error',
      {
        selector: 'variable',
        format: ['camelCase', 'UPPER_CASE', 'PascalCase'],
        leadingUnderscore: 'allow',
        trailingUnderscore: 'forbid',
      },
    ],
    '@typescript-eslint/prefer-for-of': 'error',
    '@typescript-eslint/quotes': 'off',
    '@typescript-eslint/semi': ['off', null],
    '@typescript-eslint/type-annotation-spacing': 'off',
    'arrow-body-style': 'error',
    'arrow-parens': ['off', 'always'],
    'brace-style': ['off', 'off'],
    'comma-dangle': 'off',
    curly: ['error', 'multi-line'],
    'dot-notation': 'off',
    'eol-last': 'off',
    eqeqeq: ['error', 'smart'],
    'id-denylist': [
      'error',
      'any',
      'Number',
      'number',
      'String',
      'string',
      'Boolean',
      'boolean',
      'Undefined',
      'undefined',
    ],
    'id-match': 'error',
    indent: 'off',
    'linebreak-style': 'off',
    'max-len': 'off',
    'new-parens': 'off',
    'newline-per-chained-call': 'off',
    'no-eval': 'error',
    'no-extra-semi': 'off',
    'no-irregular-whitespace': 'off',
    'no-multiple-empty-lines': 'error',
    'no-null/no-null': 'error',
    'no-redeclare': 'error',
    'no-trailing-spaces': 'off',
    'no-underscore-dangle': 'off',
    'no-var': 'error',
    'one-var': ['error', 'never'],
    'padded-blocks': [
      'off',
      {
        blocks: 'never',
      },
      {
        allowSingleLineBlocks: true,
      },
    ],
    'prefer-const': 'error',
    'quote-props': 'off',
    quotes: 'off',
    radix: 'error',
    'react/jsx-curly-spacing': 'off',
    'react/jsx-equals-spacing': 'off',
    'react/jsx-tag-spacing': [
      'off',
      {
        afterOpening: 'allow',
        closingSlash: 'allow',
      },
    ],
    'react/jsx-wrap-multilines': 'off',
    semi: 'off',
    'space-before-function-paren': 'off',
    'space-in-parens': ['off', 'never'],
  },
};