eslint.config.js

import js from '@eslint/js';
import nodePlugin from 'eslint-plugin-n';
import globals from 'globals';

export default [
  {
    ignores: [
      'unused/*.js',
      'static/i/hebcal-app-*.min.js',
    ],
  },
  js.configs.recommended,
  nodePlugin.configs['flat/recommended-script'],
  {
    languageOptions: {
      ecmaVersion: 2022,
      sourceType: 'module',
      globals: {
        ...globals.browser,
      },
    },
    plugins: {
    },
    rules: {
      // 'jsdoc/require-description': 'warn',
      'semi': 'error',
      'no-cond-assign': 0, // eslint:recommended
      'no-irregular-whitespace': 2, // eslint:recommended
      'no-unexpected-multiline': 2, // eslint:recommended
      'guard-for-in': 2,
      'no-caller': 2,
      'no-extend-native': 2,
      'no-extra-bind': 2,
      'no-invalid-this': 2,
      'no-multi-spaces': 2,
      'no-multi-str': 2,
      'no-new-wrappers': 2,
      'no-throw-literal': 2, // eslint:recommended
      'no-with': 2,
      'prefer-promise-reject-errors': 2,
      'no-unused-vars': [2, {args: 'none'}], // eslint:recommended
      'array-bracket-newline': 0, // eslint:recommended
      'array-bracket-spacing': [2, 'never'],
      'array-element-newline': 0, // eslint:recommended
      'block-spacing': [2, 'never'],
      'brace-style': 2,
      'camelcase': [2, {properties: 'never'}],
      'comma-dangle': [2, 'always-multiline'],
      'comma-spacing': 2,
      'comma-style': 2,
      'computed-property-spacing': 2,
      'eol-last': 2,
      'func-call-spacing': 2,
      'indent': [
        2, 2, {
          'CallExpression': {
            'arguments': 2,
          },
          'FunctionDeclaration': {
            'body': 1,
            'parameters': 2,
          },
          'FunctionExpression': {
            'body': 1,
            'parameters': 2,
          },
          'MemberExpression': 2,
          'ObjectExpression': 1,
          'SwitchCase': 1,
          'ignoredNodes': [
            'ConditionalExpression',
          ],
        },
      ],
      'key-spacing': 2,
      'keyword-spacing': 2,
      'linebreak-style': 2,
      'max-len': ['error', {'code': 120}],
      'new-cap': 2,
      'no-array-constructor': 2,
      'no-mixed-spaces-and-tabs': 2, // eslint:recommended
      'no-multiple-empty-lines': [2, {max: 2}],
      'no-new-object': 2,
      'no-tabs': 2,
      'no-trailing-spaces': 2,
      'object-curly-spacing': 2,
      'one-var': [2, {
        var: 'never',
        let: 'never',
        const: 'never',
      }],
      'operator-linebreak': [2, 'after'],
      'padded-blocks': [2, 'never'],
      'quote-props': [2, 'consistent'],
      'quotes': [2, 'single', {allowTemplateLiterals: true}],
      'semi-spacing': 2,
      'space-before-blocks': 2,
      'space-before-function-paren': [2, {
        asyncArrow: 'always',
        anonymous: 'never',
        named: 'never',
      }],
      'spaced-comment': [2, 'always'],
      'switch-colon-spacing': 2,
      'arrow-parens': [2, 'always'],
      'constructor-super': 2, // eslint:recommended
      'generator-star-spacing': [2, 'after'],
      'no-new-symbol': 2, // eslint:recommended
      'no-this-before-super': 2, // eslint:recommended
      'no-var': 2,
      'prefer-const': [2, {destructuring: 'all'}],
      'prefer-rest-params': 2,
      'prefer-spread': 2,
      'rest-spread-spacing': 2,
      'yield-star-spacing': [2, 'after'],
      'curly': [2, 'multi-line'],
    },
  },
];