While everything compiles and bundles successfully, a TypeError is encountered in the browser: "box2dweb_commonjs_1.default is undefined." No errors occur when starting webpack-dev-server and reviewing the bundle at http://localhost:8080/webpack-dev-server/. The project can be found on GitHub at https://github.com/paboulos/ts-loader_box2d What could be causing this issue with the bundle?
issue with box2dweb_commonjs_1.default
This is a common problem. The library does not have a default export. Instead of using
import box2dweb from "whatever";
You should use
import * as box2dweb from "whatever";
The library lacks a default export. In TypeScript, this would result in a compilation error. Some JavaScript developers also struggle to distinguish between default and named exports, but babel resolves the issue for them, unlike TypeScript.
In the future, babel may automatically set the main export as the default export, which could become the standard practice. However, that is not yet the case, so TypeScript currently handles it differently.
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Here is the error message you are encountering: > npm install npm ERR! code ERESOLVE npm ERR! ERESOLVE unable to resolve dependency tree npm ERR! npm ERR! Found: <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="394e5c5b49585a5 ...