module.exports = { env: { es6: true, browser: true, node: true, }, extends: [ 'standard', 'plugin:import/recommended', 'plugin:eslint-comments/recommended', 'plugin:jsonc/recommended-with-jsonc', 'plugin:yml/standard', 'plugin:markdown/recommended', ], ignorePatterns: [ '*.min.*', 'CHANGELOG.md', 'dist', 'LICENSE*', 'output', 'packages-lock.json', 'pnpm-lock.yaml', 'public', 'temp', 'yarn.lock', '!.github', '!.vitepress', '!.vscode', ], plugins: [ 'html', 'unicorn', ], settings: { 'import/resolver': { node: { extensions: ['.js', '.mjs', '.ts', '.d.ts'] }, }, }, overrides: [ { files: ['*.json', '*.json5'], parser: 'jsonc-eslint-parser', rules: { 'quotes': ['error', 'double'], 'quote-props': ['error', 'always'], 'comma-dangle': ['error', 'never'], }, }, { files: ['*.yaml', '*.yml'], parser: 'yaml-eslint-parser', }, { files: ['package.json'], parser: 'jsonc-eslint-parser', rules: { 'jsonc/sort-keys': [ 'error', { pathPattern: '^$', order: [ 'name', 'type', 'version', 'private', 'packageManager', 'description', 'keywords', 'license', 'author', 'repository', 'funding', 'main', 'module', 'types', 'unpkg', 'jsdelivr', 'exports', 'files', 'bin', 'sideEffects', 'scripts', 'peerDependencies', 'peerDependenciesMeta', 'dependencies', 'optionalDependencies', 'devDependencies', 'husky', 'lint-staged', 'eslintConfig', ], }, { pathPattern: '^(?:dev|peer|optional|bundled)?[Dd]ependencies$', order: { type: 'asc' }, }, ], }, }, { files: ['*.d.ts'], rules: { 'import/no-duplicates': 'off', }, }, { files: ['*.js'], rules: { '@typescript-eslint/no-var-requires': 'off', }, }, { files: ['scripts/**/*.*', 'cli.*'], rules: { 'no-console': 'off', }, }, { files: ['*.test.ts', '*.test.js', '*.spec.ts', '*.spec.js'], rules: { 'no-unused-expressions': 'off', }, }, { // Code blocks in markdown file files: ['**/*.md/*.*'], rules: { '@typescript-eslint/no-redeclare': 'off', '@typescript-eslint/no-unused-vars': 'off', '@typescript-eslint/no-use-before-define': 'off', 'import/no-unresolved': 'off', 'no-alert': 'off', 'no-console': 'off', 'no-restricted-imports': 'off', 'no-undef': 'off', 'no-unused-expressions': 'off', 'no-unused-vars': 'off', }, }, ], rules: { // import 'import/order': 'error', 'import/first': 'error', 'import/no-mutable-exports': 'error', 'import/no-unresolved': 'off', 'import/no-absolute-path': 'off', // Common 'semi': ['error', 'never'], 'curly': ['error', 'multi-or-nest', 'consistent'], 'quotes': ['error', 'single'], 'quote-props': ['error', 'consistent-as-needed'], 'no-unused-vars': 'warn', 'no-param-reassign': 'off', 'array-bracket-spacing': ['error', 'never'], 'brace-style': ['error', 'stroustrup', { allowSingleLine: true }], 'block-spacing': ['error', 'always'], 'camelcase': 'off', 'comma-spacing': ['error', { before: false, after: true }], 'comma-style': ['error', 'last'], 'comma-dangle': ['error', 'always-multiline'], 'no-constant-condition': 'warn', 'no-debugger': 'error', 'no-console': ['error', { allow: ['warn', 'error'] }], 'no-cond-assign': ['error', 'always'], 'func-call-spacing': ['off', 'never'], 'key-spacing': ['error', { beforeColon: false, afterColon: true }], 'indent': ['error', 2, { SwitchCase: 1, VariableDeclarator: 1, outerIIFEBody: 1 }], 'no-restricted-syntax': [ 'error', 'DebuggerStatement', 'LabeledStatement', 'WithStatement', ], 'object-curly-spacing': ['error', 'always'], 'no-return-await': 'off', 'space-before-function-paren': ['error', 'never'], // es6 'no-var': 'error', 'prefer-const': [ 'error', { destructuring: 'any', ignoreReadBeforeAssign: true, }, ], 'prefer-arrow-callback': [ 'error', { allowNamedFunctions: false, allowUnboundThis: true, }, ], 'object-shorthand': [ 'error', 'always', { ignoreConstructors: false, avoidQuotes: true, }, ], 'prefer-rest-params': 'error', 'prefer-spread': 'error', 'prefer-template': 'error', 'template-curly-spacing': 'error', 'arrow-parens': ['error', 'as-needed', { requireForBlockBody: true }], 'generator-star-spacing': 'off', 'spaced-comment': ['error', 'always', { line: { markers: ['/'], exceptions: ['/', '#'], }, block: { markers: ['!'], exceptions: ['*'], balanced: true, }, }], // best-practice 'array-callback-return': 'error', 'block-scoped-var': 'error', 'consistent-return': 'off', 'complexity': ['off', 11], 'eqeqeq': ['error', 'smart'], 'no-alert': 'warn', 'no-case-declarations': 'error', 'no-multi-spaces': 'error', 'no-multi-str': 'error', 'no-with': 'error', 'no-void': 'error', 'no-useless-escape': 'off', 'vars-on-top': 'error', 'require-await': 'off', 'no-return-assign': 'off', 'operator-linebreak': ['error', 'before'], // unicorns // Pass error message when throwing errors 'unicorn/error-message': 'error', // Uppercase regex escapes 'unicorn/escape-case': 'error', // Array.isArray instead of instanceof 'unicorn/no-array-instanceof': 'error', // Prevent deprecated `new Buffer()` 'unicorn/no-new-buffer': 'error', // Keep regex literals safe! 'unicorn/no-unsafe-regex': 'off', // Lowercase number formatting for octal, hex, binary (0x1'error' instead of 0X1'error') 'unicorn/number-literal-case': 'error', // ** instead of Math.pow() 'unicorn/prefer-exponentiation-operator': 'error', // includes over indexOf when checking for existence 'unicorn/prefer-includes': 'error', // String methods startsWith/endsWith instead of more complicated stuff 'unicorn/prefer-starts-ends-with': 'error', // textContent instead of innerText 'unicorn/prefer-text-content': 'error', // Enforce throwing type error when throwing error while checking typeof 'unicorn/prefer-type-error': 'error', // Use new when throwing error 'unicorn/throw-new-error': 'error', 'no-use-before-define': ['error', { functions: false, classes: false, variables: true }], 'eslint-comments/disable-enable-pair': 'off', 'import/no-named-as-default-member': 'off', 'n/no-callback-literal': 'off', 'sort-imports': [ 'error', { ignoreCase: false, ignoreDeclarationSort: true, ignoreMemberSort: false, memberSyntaxSortOrder: ['none', 'all', 'multiple', 'single'], allowSeparatedGroups: false, }, ], // yml 'yml/quotes': ['error', { prefer: 'single', avoidEscape: false }], }, }