eslint-config-vaadin/rules/typescript/extensions.js

Vaadin base JS/TS ESLint config

import possibleProblems, { noUseBeforeDefineOptions } from '../eslint/possible-problems.js';
import suggestions from '../eslint/suggestions.js';
export const common = {
    '@typescript-eslint/class-methods-use-this': [
        'error',
        {
            ignoreOverrideMethods: true,
            ignoreClassesThatImplementAnInterface: true,
        },
    ],
    // Enforce default parameters to be last
    // https://typescript-eslint.io/rules/default-param-last
    '@typescript-eslint/default-param-last': suggestions['default-param-last'] ?? 'off',
    // Require or disallow initialization in variable declarations
    // https://typescript-eslint.io/rules/init-declarations
    '@typescript-eslint/init-declarations': suggestions['init-declarations'] ?? 'off',
    '@typescript-eslint/max-params': suggestions['max-params'] ?? 'off',
    // Disallow generic Array constructors
    // https://typescript-eslint.io/rules/no-array-constructor
    '@typescript-eslint/no-array-constructor': 'error',
    // Disallow duplicate class members
    // https://typescript-eslint.io/rules/no-dupe-class-members
    '@typescript-eslint/no-dupe-class-members': possibleProblems['no-dupe-class-members'] ?? 'off',
    // Disallow Empty Functions
    // https://typescript-eslint.io/rules/no-empty-function
    '@typescript-eslint/no-empty-function': suggestions['no-empty-function'] ?? 'off',
    // Disallow this keywords outside of classes or class-like objects
    // https://typescript-eslint.io/rules/no-invalid-this
    '@typescript-eslint/no-invalid-this': suggestions['no-invalid-this'] ?? 'off',
    // Disallows magic numbers
    // https://typescript-eslint.io/rules/no-magic-numbers
    // EXPLANATION: Too strict
    '@typescript-eslint/no-magic-numbers': 'off',
    // Disallow variable redeclaration
    // https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/docs/rules/no-redeclare
    '@typescript-eslint/no-redeclare': suggestions['no-redeclare'] ?? 'off',
    // Disallow variable declarations from shadowing variables declared in the outer scope
    // https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/docs/rules/no-shadow
    '@typescript-eslint/no-shadow': suggestions['no-shadow'] ?? 'off',
    // Disallow unused expressions
    // https://typescript-eslint.io/rules/no-unused-expressionss
    '@typescript-eslint/no-unused-expressions': suggestions['no-unused-expressions'] ?? 'off',
    // Disallow unused private class members.
    // https://typescript-eslint.io/rules/no-unused-private-class-members
    '@typescript-eslint/no-unused-private-class-members': possibleProblems['no-unused-private-class-members'] ?? 'off',
    // Disallow unused variables
    // https://typescript-eslint.io/rules/no-unused-vars
    '@typescript-eslint/no-unused-vars': possibleProblems['no-unused-vars'] ?? 'off',
    // Disallow the use of variables before they are defined
    // https://typescript-eslint.io/rules/no-use-before-define
    '@typescript-eslint/no-use-before-define': [
        'error',
        {
            ...noUseBeforeDefineOptions,
            typedefs: true,
        },
    ],
    // Disallow unnecessary constructors
    // https://typescript-eslint.io/rules/no-useless-constructor
    '@typescript-eslint/no-useless-constructor': 'error',
    'class-methods-use-this': 'off',
    'consistent-return': 'off',
    'default-param-last': 'off',
    'init-declarations': 'off',
    'max-params': 'off',
    'no-dupe-class-members': 'off',
    'no-empty-function': 'off',
    'no-invalid-this': 'off',
    // Disallow function declarations that contain unsafe references inside loop statements
    // The "@typescript-eslint/no-loop-func" extension rule is deprecated since v8.64.0,
    // so the base rule is used for TS(X) files as well
    // https://typescript-eslint.io/rules/no-loop-func
    'no-loop-func': suggestions['no-loop-func'] ?? 'off',
    // Disallow literal numbers that lose precision
    // https://typescript-eslint.io/rules/no-loss-of-precision
    // DEPRECATED AND REMOVED FROM CONFIG
    'no-loss-of-precision': 'off',
    'no-magic-numbers': 'off',
    'no-redeclare': 'off',
    // Disallow specified modules when loaded by import
    // The "@typescript-eslint/no-restricted-imports" extension rule is deprecated since v8.64.0,
    // so the base rule is used for TS(X) files as well
    // https://typescript-eslint.io/rules/no-restricted-imports
    'no-restricted-imports': suggestions['no-restricted-imports'] ?? 'off',
    'no-shadow': 'off',
    'no-unused-expressions': 'off',
    'no-unused-private-class-members': 'off',
    'no-unused-vars': 'off',
    'no-use-before-define': 'off',
    'no-useless-constructor': 'off',
};
// Use rules ONLY for TS(X) files and ignore JS(X)
export const specific = {
    // ts(2335), ts(2377)
    'constructor-super': 'off',
    // ts(2378)
    'getter-return': 'off',
    // ts(2588)
    'no-const-assign': 'off',
    // ts(2300)
    'no-dupe-args': 'off',
    // ts(1117)
    'no-dupe-keys': 'off',
    // ts(2539)
    'no-func-assign': 'off',
    // ts(2539), ts(2540)
    'no-import-assign': 'off',
    // ts(7009)
    'no-new-symbol': 'off',
    // ts(2349)
    'no-obj-calls': 'off',
    // ts(2408)
    'no-setter-return': 'off',
    // ts(2376)
    'no-this-before-super': 'off',
    // ts(2304)
    'no-undef': 'off',
    // ts(7027)
    'no-unreachable': 'off',
    // ts(2365), ts(2360), ts(2358)
    'no-unsafe-negation': 'off',
    // ts(2367)
    'valid-typeof': 'off',
};
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