janv / webpack-hot-library

If you run this with

yarn webpack serve

And take a look at the served js file in the browser.

• Search for ./src/index.js, that should take you to line 10454
• This is the module code for the index.js
• It has a line var __webpack_exports__ = {} at the top. This shadows the __webpack_exports__ from the startup code:

    var __webpack_exports__ = {};
    // This entry need to be wrapped in an IIFE because it need to be in strict mode.
    (() => {
    "use strict";
    var __webpack_exports__ = {};
    /*!**********************!*\
    !*** ./src/index.js ***!
    \**********************/
    __webpack_require__.r(__webpack_exports__);
    /* harmony export */ __webpack_require__.d(__webpack_exports__, {
    /* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
    /* harmony export */ });
    /* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
    hello: function hello() {
        console.log('hello');
    }
    });
    })();

• As a result the export of the umd module ends up being empty