What is @babel/plugin-transform-modules-umd?
The @babel/plugin-transform-modules-umd package is a Babel plugin that transforms ES2015 modules to UMD (Universal Module Definition) format. This allows the modules to be used in various environments, such as in the browser, Node.js, or AMD (Asynchronous Module Definition) environments. The plugin provides flexibility in module usage across different platforms by wrapping the code in a UMD wrapper.
Transform ES2015 modules to UMD
This feature allows developers to write their JavaScript modules using the modern ES2015 module syntax and then transform them into UMD format. The transformed code can be executed in various environments without modification. The code sample shows a simple module exporting a string, transformed into UMD format.
"use strict";\n\nObject.defineProperty(exports, "__esModule", {\n value: true\n});\nexports.default = void 0;\n\nvar _default = 'Hello World';\n\nexports.default = _default;\nmodule.exports = exports["default"];