Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

SyntaxError: Cannot use import statement outside a module #2524

Closed
JamersonAguiarOSF opened this issue Oct 9, 2024 Discussed in #2521 · 1 comment
Closed

SyntaxError: Cannot use import statement outside a module #2524

JamersonAguiarOSF opened this issue Oct 9, 2024 Discussed in #2521 · 1 comment

Comments

@JamersonAguiarOSF
Copy link

Discussed in #2521

Originally posted by JamersonAguiarOSF October 7, 2024
Using react-day-picker 9.1.3 in a monorepo project (lerna), some tests started failing with the following error

Jest encountered an unexpected token

Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax.

Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration.

By default "node_modules" folder is ignored by transformers.

Here's what you can do:
 • If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/ecmascript-modules for how to enable it.
 • If you are trying to use TypeScript, see https://jestjs.io/docs/getting-started#using-typescript
 • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
 • If you need a custom transformation specify a "transform" option in your config.
 • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.

You'll find more details and examples of these config options in the docs:
https://jestjs.io/docs/configuration
For information about custom transformations, see:
https://jestjs.io/docs/code-transformation

Details:

C:\dev\project\node_modules\react-day-picker\node_modules\date-fns\addDays.js:1
({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,jest){import { constructFrom } from "./constructFrom.js";
                                                                                  ^^^^^^

SyntaxError: Cannot use import statement outside a module

> 1 | import { DayPicker, DayPickerProps } from 'react-day-picker';
    | ^
  2 |
  3 | import 'react-day-picker/style.css';
  4 | import './Calendar.scss';

  at Runtime.createScriptFromCode (../../node_modules/jest-runtime/build/index.js:1728:14)
  at Object.<anonymous> (../../node_modules/react-day-picker/src/lib/dateLib.ts:5:1)
  at Object.<anonymous> (../../node_modules/react-day-picker/src/helpers/getDateLib.ts:1:1)
  at Object.<anonymous> (../../node_modules/react-day-picker/src/DayPicker.tsx:14:1)
  at Object.<anonymous> (../../node_modules/react-day-picker/src/index.ts:1:1)
  at Object.<anonymous> (../../components/analyticsByPublishDateApp/components/calendar/Calendar.tsx:1:1)
  at Object.<anonymous> (../../components/analyticsByPublishDateApp/containers/analyticsByPublishDate/components/headerAnalyticsByPublishDate/components/DropdownMetricsDateRange.tsx:6:1)
  at Object.<anonymous> (../../components/analyticsByPublishDateApp/containers/analyticsByPublishDate/components/headerAnalyticsByPublishDate/HeaderAnalyticsByPublishDate.tsx:4:1)  
  at Object.<anonymous> (../../components/analyticsByPublishDateApp/containers/analyticsByPublishDate/AnalyticsByPublishDate.tsx:3:1)
  at Object.<anonymous> (../../components/analyticsByPublishDateApp/AnalyticsByPublishDateApp.tsx:2:1)</div>
@gpbl gpbl closed this as completed Oct 10, 2024
@gpbl
Copy link
Owner

gpbl commented Oct 11, 2024

dup of #2521

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

2 participants