eslint.config.mjs

import flat from "./flat.mjs";
export default [
  ...flat,
  {
    // Common JS
    files: ["*.js"],
    rules: {
      "no-restricted-syntax": [
        "error",
        {
          selector: "ImportDeclaration",
          message: "Unexpected import, use require instead.",
        },
        {
          selector: "ExportNamedDeclaration",
          message: "Unexpected export, use module.exports instead.",
        },
        {
          selector: "ExportDefaultDeclaration",
          message: "Unexpected export, use module.exports instead.",
        },
      ],
    },
  },
  {
    // Common JS
    files: ["__tests__/*.js", "*.spec.js", "*.test.js"],
    rules: {
      "no-restricted-syntax": [
        "error",
        {
          selector: "CallExpression[callee.name='require']",
          message: "Unexpected require, use import instead.",
        },
        {
          selector:
            "MemberExpression[object.name='module'][property.name='exports']",
          message: "Unexpected module.exports, use export instead.",
        },
        {
          selector: "MemberExpression[object.name='exports']",
          message: "Unexpected exports, use export instead.",
        },
      ],
    },
  },
];