.eslintrc.js

module.exports = {
  root: true,
  env: {
    node: true,
    es2021: true,
  },
  plugins: ['@typescript-eslint', 'prettier'],
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:eslint-comments/recommended',
    'plugin:prettier/recommended'
  ],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 2021,
    project: './tsconfig.eslint.json',
  },
  rules: {
    'array-callback-return': ['error'], // Enforce return statements in callbacks of array methods
    'no-constructor-return': ['error'], // Disallow returning value in constructor
    'no-promise-executor-return': ['error'], // Disallow returning values from Promise executor
    'no-template-curly-in-string': ['error'], // Disallow template literal placeholder syntax in regular strings
    'require-atomic-updates': ['error'], // Disallow assignments that can lead to race conditions due to usage of await or yield
    'no-self-compare': ['error'], // Disallow self compare
    'no-console': ['warn', { allow: ['warn', 'error'] }], // Disallow the use of console, except for warn and error
    'no-await-in-loop': ['warn'], // Disallow await inside of loops
    'no-unmodified-loop-condition': ['warn'], // Disallow unmodified loop conditions
    'no-use-before-define': 'off', // Turn off this rule as @typescript-eslint also has this rule
    eqeqeq: ['error', 'always', { null: 'ignore' }], // Enforce the use of === and !==, but allow (==null)

    '@typescript-eslint/no-unused-vars': ['error', { vars: 'all', args: 'none' }], // Disallow unused variables
    '@typescript-eslint/no-inferrable-types': ['off'], // Disallow obvious type redundancies
    '@typescript-eslint/consistent-type-imports': ['error'], // Enforce consistent import style
    '@typescript-eslint/ban-tslint-comment': ['error'], // Disallow TSLint comments
    '@typescript-eslint/class-literal-property-style': ['error'], // Enforce class members to use equals assignment
    '@typescript-eslint/consistent-type-assertions': ['error'], // Enforce consistent type assertion style
    '@typescript-eslint/no-misused-new': ['off'],
    '@typescript-eslint/consistent-type-exports': [
      // Enforce consistent export style
      'error',
      {
        fixMixedExportsWithInlineTypeSpecifier: false,
      },
    ],
    '@typescript-eslint/ban-ts-comment': [
      // Disallow TSLint comments, with a few exceptions
      'error',
      {
        'ts-expect-error': { descriptionFormat: '^: TS\\d+ (?:because\\s).+$' },
        'ts-ignore': 'allow-with-description',
        'ts-nocheck': true,
        'ts-check': false,
        minimumDescriptionLength: 4,
      },
    ],
    '@typescript-eslint/no-explicit-any': ['error', { ignoreRestArgs: true, fixToUnknown: true }], // Disallow explicit use of any type
    '@typescript-eslint/no-non-null-assertion': 'off', // Turn off the rule "Disallow non-null assertion"
    '@typescript-eslint/no-use-before-define': [
      'error',
      {
        functions: false,
        classes: true,
        variables: true,
        allowNamedExports: false,
        enums: true,
        typedefs: false,
        // ignoreTypeReferences: true,
      },
    ], // Disallow the use of variables before they are defined
  },
};