eslint.config.js

const { configs } = require('@eslint/js');
const jest = require('eslint-plugin-jest');
const globals = require('globals');

module.exports = [
    configs.recommended,
    {
        languageOptions: {
            ecmaVersion: 'latest',
            sourceType: 'commonjs',
            globals: { ...globals.node, ...globals.jest, Atomics: 'readonly', SharedArrayBuffer: 'readonly' }
        },
        rules: {
            semi: 'error',
            quotes: ['error', 'single'],
            indent: ['error', 4, { 'SwitchCase': 1 }],
            'no-unused-vars':
                [
                    'warn',
                    {
                        'varsIgnorePattern': '^_',
                        'args': 'after-used',
                        'argsIgnorePattern': '^_',
                        'caughtErrors': 'all',
                        'caughtErrorsIgnorePattern': '^_'
                    }
                ]
        },
        ignores: ['coverage/', '**/*.json']
    },
    {
        languageOptions: {
            globals: { ...globals.jest }
        },
        files: ['test/*.test.js'],
        ...jest.configs['flat/recommended'],
        rules: {
            ...jest.configs['flat/recommended'].rules
        }
    }
];