eslint.config.mjs

// eslint.config.mjs

export default [
  {
    files: ['**/*.{js,mjs}'],
    languageOptions: {
      ecmaVersion: 'latest',
      sourceType: 'module',
      globals: {
        BigInt: 'readonly',
        window: 'readonly',
        document: 'readonly',
        console: 'readonly',
        module: 'readonly',
        require: 'readonly',
      },
    },
    rules: {
      'indent': ['error', 2],
      'linebreak-style': ['error', 'unix'],
      'quotes': ['error', 'single'],
      'semi': ['error', 'always'],
      'no-loop-func': 'error',
      'block-spacing': ['error', 'always'],
      'camelcase': 'error',
      'eqeqeq': ['error', 'always'],
      'strict': ['error', 'global'],
      'brace-style': ['error', '1tbs', { 'allowSingleLine': true }],
      'comma-style': ['error', 'last'],
      'comma-spacing': ['error', { 'before': false, 'after': true }],
      'eol-last': 'error',
      'func-call-spacing': ['error', 'never'],
      'key-spacing': ['error', { 'beforeColon': false, 'afterColon': true, 'mode': 'minimum' }],
      'keyword-spacing': [
        'error',
        {
          'before': true,
          'after': true,
          'overrides': {
            'function': { 'after': false },
          },
        },
      ],
      'max-len': ['error', { 'code': 150, 'ignoreUrls': true }],
      'max-nested-callbacks': ['error', { 'max': 7 }],
      'new-cap': [
        'error',
        {
          'newIsCap': true,
          'capIsNew': false,
          'properties': true,
        },
      ],
      'new-parens': 'error',
      'no-lonely-if': 'error',
      'no-trailing-spaces': 'error',
      'no-unneeded-ternary': 'error',
      'no-whitespace-before-property': 'error',
      'object-curly-spacing': ['error', 'always'],
      'operator-assignment': ['error', 'always'],
      'operator-linebreak': ['error', 'after'],
      'semi-spacing': ['error', { 'before': false, 'after': true }],
      'space-before-blocks': ['error', 'always'],
      'space-before-function-paren': [
        'error',
        {
          'anonymous': 'never',
          'named': 'never',
          'asyncArrow': 'always',
        },
      ],
      'space-in-parens': ['error', 'never'],
      'space-infix-ops': 'error',
      'space-unary-ops': [
        'error',
        {
          'words': true,
          'nonwords': false,
          'overrides': {
            'typeof': false,
          },
        },
      ],
      'no-unreachable': 'error',
      'no-global-assign': 'error',
      'no-self-compare': 'error',
      'no-unmodified-loop-condition': 'error',
      'no-constant-condition': ['error', { 'checkLoops': false }],
      'no-console': 'off',
      'no-useless-concat': 'error',
      'no-useless-escape': 'error',
      'no-shadow-restricted-names': 'error',
      'no-use-before-define': ['error', { 'functions': false }],
      'arrow-parens': ['error', 'always'],
      'arrow-body-style': ['error', 'as-needed'],
      'arrow-spacing': 'error',
      'no-confusing-arrow': ['error', { 'allowParens': true }],
      'no-useless-computed-key': 'error',
      'no-useless-rename': 'error',
      'no-var': 'error',
      'object-shorthand': ['error', 'always'],
      'prefer-arrow-callback': 'error',
      'prefer-const': 'error',
      'prefer-numeric-literals': 'error',
      'prefer-rest-params': 'error',
      'prefer-spread': 'error',
      'rest-spread-spacing': ['error', 'never'],
      'template-curly-spacing': ['error', 'never'],
      'consistent-return': ['error', { 'treatUndefinedAsUnspecified': true }],
    },
  },
];