eslint.config.js

const { defineConfig } = require("eslint/config");
const js = require("@eslint/js");
const globals = require("globals");
const pluginJest = require('eslint-plugin-jest');

module.exports = defineConfig([
  {
    files: ["**/*.{mjs,cjs}"],
    plugins: { js },
    extends: ["js/recommended"],
  },
  {
    files: ["**/*.js"],
    ignores: ["./tdd/**/*.js", "./test/**/*.js", "./load-db.js"],
    languageOptions: {sourceType: "commonjs", globals: {...globals.node}},
    plugins: {js},
    extends: ["js/recommended"],
    rules: {
      "quotes": ["error", "double"],
      "indent": ["error", 2, {"SwitchCase": 1}],
      "semi": ["error", "always"],
    },
  },
  {
    files: ["**/*.{mjs,cjs}"],
    languageOptions: { globals: globals.browser },
  },
  {
    ignores: ["**/generated/*", "**/node_modules/*"],
  },
    {
    // update this to match your test files
    files: ['**/*.spec.js', '**/*.test.js'],
    plugins: { jest: pluginJest },
    languageOptions: {
      globals: pluginJest.environments.globals.globals,
    },
    rules: {
      'jest/no-disabled-tests': 'warn',
      'jest/no-focused-tests': 'error',
      'jest/no-identical-title': 'error',
      'jest/prefer-to-have-length': 'warn',
      'jest/valid-expect': 'error',
    },
  },

]);