/* eslint-env node */ module.exports = { plugins: ['@typescript-eslint', 'wc', 'lit', 'lit-a11y', 'chai-expect', 'chai-friendly', 'import'], extends: [ 'eslint:recommended', 'plugin:wc/recommended', 'plugin:wc/best-practice', 'plugin:lit/recommended', 'plugin:lit-a11y/recommended' ], env: { es2021: true, browser: true }, reportUnusedDisableDirectives: true, parserOptions: { sourceType: 'module' }, overrides: [ { extends: [ 'plugin:@typescript-eslint/eslint-recommended', 'plugin:@typescript-eslint/recommended', 'plugin:@typescript-eslint/recommended-requiring-type-checking' ], parser: '@typescript-eslint/parser', parserOptions: { sourceType: 'module', project: './tsconfig.json', tsconfigRootDir: __dirname }, files: ['*.ts'], rules: { 'default-param-last': 'off', '@typescript-eslint/default-param-last': 'error', 'no-empty-function': 'off', '@typescript-eslint/no-empty-function': 'warn', 'no-implied-eval': 'off', '@typescript-eslint/no-implied-eval': 'error', 'no-invalid-this': 'off', '@typescript-eslint/no-invalid-this': 'error', 'no-shadow': 'off', '@typescript-eslint/no-shadow': 'error', 'no-throw-literal': 'off', '@typescript-eslint/no-throw-literal': 'error', 'no-unused-expressions': 'off', '@typescript-eslint/prefer-regexp-exec': 'off', '@typescript-eslint/no-unused-expressions': 'error', '@typescript-eslint/unbound-method': 'off', '@typescript-eslint/no-non-null-assertion': 'off', '@typescript-eslint/consistent-type-assertions': [ 'warn', { assertionStyle: 'as', objectLiteralTypeAssertions: 'never' } ], '@typescript-eslint/consistent-type-imports': 'warn', // "@typescript-eslint/explicit-function-return-type": [ // "error", // { // allowTypedFunctionExpressions: true, // }, // ], // "@typescript-eslint/explicit-member-accessibility": "warn", // "@typescript-eslint/explicit-module-boundary-types": "error", '@typescript-eslint/no-base-to-string': 'error', '@typescript-eslint/no-confusing-non-null-assertion': 'error', '@typescript-eslint/no-confusing-void-expression': 'error', '@typescript-eslint/no-invalid-void-type': 'error', '@typescript-eslint/no-require-imports': 'error', '@typescript-eslint/no-unnecessary-boolean-literal-compare': 'warn', '@typescript-eslint/no-unnecessary-condition': 'warn', '@typescript-eslint/no-unnecessary-qualifier': 'warn', '@typescript-eslint/non-nullable-type-assertion-style': 'warn', '@typescript-eslint/prefer-for-of': 'warn', '@typescript-eslint/prefer-optional-chain': 'warn', '@typescript-eslint/prefer-readonly': 'warn', '@typescript-eslint/prefer-ts-expect-error': 'warn', '@typescript-eslint/prefer-return-this-type': 'error', '@typescript-eslint/prefer-string-starts-ends-with': 'warn', '@typescript-eslint/require-array-sort-compare': 'error', '@typescript-eslint/unified-signatures': 'warn', '@typescript-eslint/array-type': 'warn', '@typescript-eslint/consistent-type-definitions': ['warn', 'interface'], '@typescript-eslint/member-delimiter-style': 'warn', '@typescript-eslint/method-signature-style': 'warn', '@typescript-eslint/naming-convention': [ 'warn', { selector: 'default', format: ['camelCase'] }, { selector: ['function', 'enumMember', 'property'], format: ['camelCase', 'PascalCase'] }, { selector: 'variable', modifiers: ['const'], format: ['camelCase', 'PascalCase', 'UPPER_CASE'] }, { selector: 'typeLike', format: ['PascalCase'] }, { selector: 'typeProperty', format: ['camelCase', 'PascalCase', 'UPPER_CASE'] } ], '@typescript-eslint/no-extraneous-class': 'error', '@typescript-eslint/no-parameter-properties': 'error', '@typescript-eslint/strict-boolean-expressions': [ 'error', { allowString: false, allowNumber: false, allowNullableObject: false } ] } }, { extends: ['plugin:chai-expect/recommended', 'plugin:chai-friendly/recommended'], files: ['*.test.ts'], rules: { '@typescript-eslint/no-unused-expressions': 'off' } } ], rules: { 'no-template-curly-in-string': 'error', 'array-callback-return': 'error', 'consistent-return': 'error', curly: 'warn', 'default-param-last': 'error', eqeqeq: 'error', 'no-constructor-return': 'error', 'no-empty-function': 'warn', 'no-eval': 'error', 'no-extend-native': 'error', 'no-extra-bind': 'error', 'no-floating-decimal': 'error', 'no-implicit-coercion': 'error', 'no-implicit-globals': 'error', 'no-implied-eval': 'error', 'no-invalid-this': 'error', 'no-labels': 'error', 'no-lone-blocks': 'error', 'no-new': 'error', 'no-new-func': 'error', 'no-new-wrappers': 'error', 'no-octal-escape': 'error', 'no-proto': 'error', 'no-return-assign': 'warn', 'no-script-url': 'error', 'no-self-compare': 'warn', 'no-sequences': 'warn', 'no-throw-literal': 'error', 'no-unmodified-loop-condition': 'error', 'no-unused-expressions': 'warn', 'no-useless-call': 'error', 'no-useless-concat': 'error', 'no-useless-return': 'warn', 'prefer-promise-reject-errors': 'error', radix: 'error', 'require-await': 'error', 'wrap-iife': ['warn', 'inside'], 'no-shadow': 'error', 'no-array-constructor': 'error', 'no-bitwise': 'error', 'no-multi-assign': 'warn', 'no-new-object': 'error', 'no-useless-computed-key': 'warn', 'no-useless-rename': 'warn', 'no-var': 'error', 'prefer-const': 'warn', 'prefer-numeric-literals': 'warn', 'prefer-object-spread': 'warn', 'prefer-rest-params': 'warn', 'prefer-spread': 'warn', 'prefer-template': 'warn', 'no-else-return': 'warn', 'func-names': ['warn', 'never'], 'func-style': ['warn', 'declaration'], 'one-var': ['warn', 'never'], 'operator-assignment': 'warn', 'prefer-arrow-callback': 'warn', 'no-restricted-syntax': [ 'warn', { selector: "CallExpression[callee.name='String']", message: "Don't use the String function. Use .toString() instead." }, { selector: "CallExpression[callee.name='Number']", message: "Don't use the Number function. Use parseInt or parseFloat instead." }, { selector: "CallExpression[callee.name='Boolean']", message: "Don't use the Boolean function. Use a strict comparison instead." } ], 'no-restricted-imports': [ 'warn', { patterns: [ { group: ['../*'], message: 'Usage of relative parent imports is not allowed.' } ], paths: [ { name: '.', message: 'Usage of local index imports is not allowed.' }, { name: './index', message: 'Import from the source file instead.' } ] } ], 'import/no-duplicates': 'warn', 'import/order': [ 'warn', { groups: ['builtin', 'external', ['parent', 'sibling', 'internal', 'index']], pathGroups: [ { pattern: '~/**', group: 'internal' }, { pattern: 'dist/**', group: 'external' } ], alphabetize: { order: 'asc', caseInsensitive: true }, 'newlines-between': 'never', warnOnUnassignedImports: true } ], 'wc/guard-super-call': 'off' } };