common.eslintrc.js

// Recommended: https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/recommended-type-checked.ts

module.exports = {
  root: true,
  parser: '@typescript-eslint/parser',
  extends: ['eslint:recommended', 'plugin:@typescript-eslint/recommended', 'prettier'],
  parserOptions: {
    project: './tsconfig.json',
    tsconfigRootDir: __dirname,
  },
  plugins: ['@typescript-eslint', 'prettier'],
  ignorePatterns: ['**/*.spec.ts'],
  rules: {
    'prettier/prettier': [
      'error',
      {
        singleQuote: true,
        trailingComma: 'all',
        printWidth: 120,
        semi: false,
      },
      {
        usePrettierrc: false,
      },
    ],
    '@typescript-eslint/no-explicit-any': 'warn',
    '@typescript-eslint/no-for-in-array': 'error',
    '@typescript-eslint/no-var-requires': 'error',
    '@typescript-eslint/prefer-as-const': 'error',
    '@typescript-eslint/no-array-constructor': 'error',
    '@typescript-eslint/no-duplicate-enum-values': 'error',
    '@typescript-eslint/restrict-template-expressions': 'error',
    '@typescript-eslint/no-unused-vars': [
      'error',
      {
        vars: 'all',
        args: 'after-used',
        ignoreRestSiblings: false,
        argsIgnorePattern: '^_',
        varsIgnorePattern: '^_',
      },
    ],
    '@typescript-eslint/no-floating-promises': ['error'],
    'block-scoped-var': 'error',
    'comma-dangle': ['error', 'always-multiline'],
    'eol-last': 'error',
    'no-confusing-arrow': 'error',
    'no-console': ['warn', { allow: ['warn', 'error'] }],
    'no-constructor-return': 'error',
    'no-duplicate-imports': 'error',
    'no-inline-comments': 'warn',
    'no-invalid-this': 'error',
    'no-multiple-empty-lines': ['error', { max: 1, maxEOF: 0 }],
    'no-return-assign': 'warn',
    'no-self-compare': 'error',
    'no-throw-literal': 0,
    'no-trailing-spaces': 'error',
    'no-unmodified-loop-condition': 'error',
    'no-unused-private-class-members': 'error',
    'object-curly-spacing': ['error', 'always'],
    'sort-imports': 'off',
    'standard/no-callback-literal': 0, // Disable this as we have too many callbacks relying on literals
    camelcase: 'off',
    curly: ['error', 'all'],
    quotes: ['error', 'single', { avoidEscape: true }],
    semi: ['error', 'never'],
  },
}