.eslintrc.js

module.exports = {
    env: {
        es6: true,
        node: true,
        jest: true,
    },
    extends: ['airbnb-base', 'plugin:prettier/recommended'],
    globals: {
        Atomics: 'readonly',
        SharedArrayBuffer: 'readonly',
    },
    parser: '@typescript-eslint/parser',
    parserOptions: {
        ecmaVersion: 2020,
        sourceType: 'module',
    },
    plugins: ['@typescript-eslint'],
    settings: {
        'import/resolver': {
            node: {
                extensions: ['.js', '.ts', '.json'],
            },
        },
    },
    ignorePatterns: ['dist'],
    rules: {
        'import/extensions': [
            'error',
            'ignorePackages',
            {
                js: 'never',
                ts: 'never',
                json: 'never',
            },
        ],
        'import/no-extraneous-dependencies': ['error', { devDependencies: ['**/*.spec.ts'] }],
        'no-unused-vars': 'off', // Checked by typescript
        'no-await-in-loop': 'off',
        'no-plusplus': 'off',
        'no-restricted-syntax': [
            'error',
            {
                selector: 'ForInStatement',
                message:
                    'for..in loops iterate over the entire prototype chain, which is virtually never what you want. Use Object.{keys,values,entries}, and iterate over the resulting array.',
            },
            {
                selector: 'LabeledStatement',
                message: 'Labels are a form of GOTO; using them makes code confusing and hard to maintain and understand.',
            },
            {
                selector: 'WithStatement',
                message: '`with` is disallowed in strict mode because it makes code impossible to predict and optimize.',
            },
        ],
        'lines-between-class-members': 'off',
        '@typescript-eslint/lines-between-class-members': ['error', 'always', { exceptAfterOverload: true, exceptAfterSingleLine: true }],
        'no-useless-constructor': 'off',
        '@typescript-eslint/no-useless-constructor': ['error'],
        'no-empty-function': [
            'error',
            {
                allow: ['arrowFunctions', 'constructors'],
            },
        ],
        'import/prefer-default-export': ['off'],
    },
};