Syntaxerror unexpected token export jest nextjs react. I finally found a workaround for this.

Syntaxerror unexpected token export jest nextjs react net. Modified 8 years, 8 months ago. js using typescript 2 Typescript and nextjs: SyntaxError: Unexpected token 'export' 0 next. es6. const mockFirebaseUser = { displayName: 'Banana Manana', // other fields from firebaseUser that you may use } /** * Build and return a dummy AuthUser instance to use in tests. 0. js module. it's not plain JavaScript. Identify and resolve configuration & code issues with ease. I managed to solve it by installing the below presets and having the babel configuration file as follows: Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. - jest - ts-jest - jest-environment-jsdom - @testing-library/react - @testing-library/jest-dom - @types/testing-library__jest-dom export default data SyntaxError: Unexpected token export during bulding on next. js, you might encounter the SyntaxError: Unexpected token ‘export’ error. chunk. How do I conditionally add attributes to React components? 881. com Jest SyntaxError: Unexpected token 'export' Apr 22, 2022 Copy link tyler-dane commented Apr 22, 2022 I'm trying to run a test for a personal website done in create-react-app. Unexpected token import usually means babel is not converting to commonJs The projectTest happens to be a Reactjs project, written in ES2015, Webpack, babel, etc; and where I do import { x } from 'package', without any issues, { ^^^^^ SyntaxError: Unexpected token export at Object. 1. /lib/uri-transformer. This error occurs One such issue is the SyntaxError: Unexpected token 'export' when working with Jest. Happy post holidays everyone! Today, I wanted to briefly talk about some issues I encountered when trying to integrate the Jest testing framework (via react-testing-library) into an existing Nextjs Sorry to hear about this issue. Thanks @akphi. In my case, I opted to stay in v7. <anonymous>":function(module,exports,require,__dirname,__filename,jest){export If you are encountering the `SyntaxError: Unexpected token ‘export’` error while running Jest tests on your JavaScript files, it is likely because your JavaScript code is using a feature Tried what worked for @ozee31 and @arjandepooter, but still getting Unexpected token "export" error when importing useDrag in jest test. ES6 import/export. This following You could use next-firebase-auth. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company but Jest doesn't like it and throws a SyntaxError: Unexpected token 'export'. You signed in with another tab or window. 3 to 27. Typescript : SyntaxError: Unexpected token 'export' 0. So, we need transform the code to a supported module type. ts file and the quotes kept getting stripped off "uuid" and the fix didn’t work. ssl. /core/core. { "presets": ["@babel/preset You signed in with another tab or window. I have clone nextjs-routes repo and goto typescript example folder as you advice but that seem not work either. babelrc and some dependencies, moduleNameMapper and transformIgnorePatterns in Install the babel packages @babel/core and @babel/preset which will convert ES6 to a commonjs target as node js doesn't understand ES6 targets directly. So you could import/check response to see The issue started when updating Jest from 26. 0 and not be affected by this) I set "main" in package. js'; ^^^^^ SyntaxError: Unexpected t For those that travelled this far. both of them not work. Jest: SyntaxError: Unexpected token export. I have a nextjs app that is using the nextjs-auth0 package. "jsx": "react-native" Same as the "preserve" option, but the output will have a . However, when I tried to put my JS in a separate file, I started getting this error: "Uncaught SyntaxError: Unexpected token &lt;". Shouldn't you use function renderNumbers()?It looks like renderNumbers is not a method of class Counter but an individual function in your code. React and NextJS: Module parse failed: Unexpected token. I finally found a workaround for this. This means any code you import from node_modules need to be compatible with Node. You switched accounts on another tab or window. SyntaxError: Unexpected token 'export' I setup an example repo to show the error: https: As it turns out, Vercel Edge Functions also run on Cloudflare Workers, which means you can do the same directly from NextJS. exports = require("@babylonjs/core") I'm using the standard nextjs setup with tsconfig. it also shows how to set your app for jest: // Create a mock FirebaseUser instance with the fields that you use. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company After struggling a lot, I found out that it is caused by the browser cache. Hot Network Questions Translating Meta's . js:543:28) From what I can see this far, is that, in the You signed in with another tab or window. js: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company This is due to query-string v8 being a ES module only package. Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' 3. The first method works if for some reason you have to import a css file from node_modules directly. js:78:16) at Module. js) Expected Behavior Tests will run successfully Failure Logs export const infoLoggerFunction = generateMockedLoggerFunction(); ^ I am trying to set up firebase authentication on my Next. Stack Overflow. In this project i'm not using babel. Next. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. js. The Problem When running the Jest JavaScript testing framework in a React app, NextJS; Node; React Native; See all; Why Sentry? Web; Mobile; Native; Gaming; Internet of Things; Data; from '. I am unsure whether your step will not get you stuck in near future. 34. This issue often occurs due to the use of ES6 modules or Jest encountered an unexpected token. js:1] 3 SyntaxError: Unexpected token import with Jest + react-native-animated-ellipsis I have a test for a test for a TSX file written in a JSX file which fails to run due to unexpected token: Test suite failed to run Jest encountered an unexpected token This usually means Jest: SyntaxError: Unexpected token export. Step 1: installation: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company SyntaxError: Invalid or unexpected token when testing react application with babel and jest 10 React Jest test fails to run with ts-jest - Unexpected token on imported file I'm trying to setup Jest with my Next. I've seen multiple similar issues and it seems Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company For anyone using create-react-app, only certain jest configurations can be changed in package. Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. To put this in different terms, I'm using Jest to test a package with "modern" JavaScript, which in-turn imports another package with "modern" JavaScript. Still I'm not able to explain the exact reason for that. So I built a package for it (link in comments) Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' 1 Can not run unit tests through jest framework because of SyntaxError: Unexpected token export I have done a few tutorials for TypeScript, getting it to run with Node. js project (using TypeScript), and I believe that I have encountered some configuration issues related to using firebase that are causing my Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' Related questions. 6. Btw, renderNumbers was defined twice, although it's legal and not the cause of the problem. fa04b6. js SyntaxError: Unexpected token ‘export’ Last updated: January 02, 2024 React Jest tests fails with react-dnd: SyntaxError: Unexpected token 'export' Ask Question Asked 2 years, 9 months ago. I tried a When I run tests on the project, I have the next problem on my project after intalling Swiper export { default as Swiper, default } from '. Could you compare your project setup to the typescript example to see what is different?. json. ^^^^^ SyntaxError: Unexpected token 'export' I Googled. exports = { // [] presets: [['@babel/preset-env', { targets: I'm trying to write a test case in a NextJS application using Jest. As the title says I have been working with next and jest for couple of weeks now but the last days I am facing an issue with jest. exports. js (in all versions) uses Node. When I try to test a file using this import: import { getSession } from '@auth0/nextjs-auth0'; I get the following error: Jest failed to TypeScript Jest: Unexpected Token Export I'm trying to run unit tests for a TypeScript project which uses another TypeScript project I've created as a dependency. Reload to refresh your session. 3. With webpack 4, and babel configured correctly, you shouldn't need to use babel-core nor babel-jest. ts)), it get a "SyntaxError: Unexpected token ':'" @chenjiajing23 <Inspector /> 这个 react 组件 (import { Inspector } from 'react-dev-inspector') 不提供 cjs 产物，只提供了 esm 产物 (供 webpack / vite 等使用)，不支持 node 端使用，如 ssr @zthxxx 感谢解答。 自定义nextjs 服务，已解决这个了这问题了。需要两个操作 1. js' ^^^^^ SyntaxError: Unexpected token 'export' > 1 | import ReactMarkdown from 'react-markdown'; As React applications grow more complex, the patterns that were “just fine” when you were starting out might start to feel limiting. (react uncaught syntaxerror: unexpected token <) Test Result; create new nextjs application, import { Lifecycle } from '@library' KO: SyntaxError: Unexpected token 'export' create new nextjs application, import { Lifecycle } from '@library', add next plugin next-transpiling-module stack overflow KO: TypeError: Object. Troubleshooting Javax. The "issue" is that Jest only wants to process CommonJS-style code. export Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. x of jest so I think since I'm just now upgrading from 27. How to fix babel react "Uncaught SyntaxError: Unexpected token <" Ask Question Asked 8 years, 8 months ago. npm install --save-dev @babel/core @babel/preset-env. js has a testPathIgnorePatterns key value and calls in the jest. The Jest doc about Testing React Native Apps includes a section about compiling dependencies that don't ship pre-compiled code. 9345ebBe. FAIL __tests__/HomePage. 4. g. This time I'm going to talk about a specific error: SyntaxError: Unexpected token 'export'. I wrote a book in which I share everything I know I started with NextJS, before that I used React a lot. js project, primarily to test API routes. io. People were discussing and saying module mappers should be added, so I added this code inside jest config: In my case it was failing because I did not set properly the typescript support for Jest. And Jest doesn't like it. Maybe Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Jest doesn't use Webpack so it doesn't know how to load other file extensions than js/jsx. Asking for help, clarification, or responding to other answers. to set type to module on your JS script tags in the browser. Modified 3 months ago. My jest. webapck 打包这个插件换成cjs 2. tsx Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. It will make your project use ES modules only, so you can't really easily use Jest encountered an unexpected token This usually means that you are trying to import a Skip to main content. _compile (module. runInThisContext (vm. You’ll gain a better understanding of how HTTP SyntaxError: Unexpected token 'export' and when I check the terminal, it shows: JEST - SyntaxError: Unexpected token 'export' with uuid library. json, and work through the changes that will bring up. But I wanted to point out that CountUp has been distributed as an ES6 module for the last 4 years, since 2. SSLHandshakeException: Received Fatal Alert - Bad_Certificate Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. Your test cases for different components require those components to be present in node_modules. I first found this Jest issue #2550 it mentioned setting up transformIgnorePatterns and adding "allowJs": true to our tsconfig. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Things change quickly in the js world. Jest doesn't transform node_modules by default, transforming all third-party modules would result in significant overhead and unexpected results. This did not work, what did solve it in the end was adding the following to our jest. config. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. i tried to run basic component and its working well. Getting Unexpected Token Export. User code (code not in node_modules) will be bundled by webpack, but non user code (code in node_modules) will not be processed in any way and just required resp. x I'll stick with this solution for now. json I'm refering to this Babylon documentation and using the examples verbatim. Recently, I added the lightbox. Hot Network Questions To solve the "SyntaxError: Unexpected token 'export'" error, make sure: to set type to module in your package. As of Aug 23, 2022 the latest version of uuid is still beta and the linked not above indicates it was only tested with the beta 29. I recommend using ts-jest for simplicity. setup. Hot Network Questions Unual firmware update = dmesg: "microcode: microcode updated early to revision 0xf8, date = 2023-09-28" I am trying to get started building a site in ReactJS. In this comprehensive guide, we'll help you understand the cause of this error and provide a step-by Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. ES6 code needs to be compiled before it can be run by Jest. My case was module federation shared dependencies caused a legacy package's css not to get picked up. It gives me SyntaxError: Unexpected You signed in with another tab or window. jsx extension. SyntaxError: Unexpected token 'export' in Next. Then you need to create one configuration file with name . js:1 Ask people who get this issue to open DevTools->Network and export requests. Not one bit. Edit: If you want to declare renderNumbers() as a prototype method of class Counter, define it inside of the class:. 0. I run the app on docker (node:18-alpine) if it makes any difference. My test suits run with no errors until I install this package: fir In mi case all items within esModules were giving me errors of "SyntaxError: Unexpected token export" then //babel. babelrc in your project's root directory and add this code there. However I will mention here how to clear cache on Google Chrome. Just use presets env, react, stage-0 to babelrc. But babel-jest is apparently already wrapped up into jest itself, which means config changes for it aren't necessary, i'm guessing - maybe this leaves me with babel-node as a last In this guide, we’ll walk through creating a basic HTTP server in Node. 5. If using modules: false on root level, you'll need to use modules: true on the test environment. A community for discussing anything related to the React UI framework and its ecosystem. My issue was that I was adding the transformIgnorePatterns to the root of my If you are developing with Next. imported by Node. js SyntaxError: Unexpected token < in JSON at position 0. present. js-react module but is throwing different import/export unexpected token errors during the t Jest's documentation for config is light on full, useable examples. I have API thing that I wrote before and published as NPM module. 1. You will need to tell Jest to compile react-navigation-tabs by whitelisting it in the transformIgnorePatterns option in SyntaxError: Unexpected token 'export' After reading lots of posts and info about it I found this issue very helpful which allowed me to find the solution which is dynamic imports, I will share the solution below of how I solved it. js fine. js file. Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' 4. json when using create-react-app. haptics file frequency and amplitude to Unity's left and right motor strength I have a simple middleware setup that checks if the user is logged in using a boolean from the zustand store, and redirect the user to the login page accordingly. As answers above have described, Jest doesn't support ES6 modules. js require vs. : Use this when you're using babel-jest to transpile your tsx (or jsx) files. You signed out in another tab or window. So for the Jest tests to run, it first needs to be transpiled by Babel. I tried different things, like play around with . json file in Node. On running the test, below error occurs: ({"Object. test. NextJS SyntaxError: Unexpected token 'export' 3. You could try adding "type": "module" to your package. jsx Mode Description Use When "jsx": "preserve" This will preserve the tsx (or jsx) code so that it can be transpiled later by another transformer (such as Babel). Jest failed to parse a file. Solving Next. . 1089. I have issues with Jest picking up an internal library, Jest would display 'unexpected token' errors wherever I had my imports from this library. Provide details and share your research! But avoid . JSX error: Unexpected Token, expected "," 1. js:1 Uncaught SyntaxError: Unexpected token "<" main. The output will have a . js using TypeScript. How to solve SyntaxError: Cannot use import implementing Magic with NextJS in a Typescript setup? 2 Typescript and nextjs: SyntaxError: Unexpected token 'export' david-wb changed the title Jest SyntaxError: Unexpected token 'export' site:stackoverflow. "preserve", /* Specify JSX code generation: 'preserve', 'react-native', or 'react Fix the common Uncaught SyntaxError: Unexpected Token < in React with our step-by-step guide. Bug Report Package version(s): latest Browser and OS versions: Chrome Priorities and help requested (not applicable if asking question): Are you willing to submit a PR to fix? No Requested priority: Blocking Describe the issue: I try to I was using a jest. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is In this post, I'm not going to explain how to configure react-testing-library and Jest, there is a lot of useful information about it. js extension. js ($ node src/options. defineProperty called on non-object Some react-native libraries ship uncompiled ES6 code. js to execute code for SSR or in API routes. Jest - SyntaxError: React Navigation - Unexpected token export for [node_modules\react-navigation\src\react-navigation. I have tried both pnpm and npm that I guess maybe because of package manager. The problem was solved after clearing browser cache on Chrome. 572 1329 Using Node. We could use babel-jest or ts-jest. SyntaxError: Unexpected token 'export' When using react-markdown in the latest version of create-react-app I can no longer run jest due to the following error: It all works fine when I remove react-markdown. To add support for other extensions you need to write custom transformers. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Current Behavior Tests are failing on frontend services but passing at backend services (Same jest. By making it "^uuid$" this started working for me. However, despite following dozens of how-tos and tutorials, I am not able to fix the issue below. Uncaught SyntaxError: Unexpected token "<" 2. 1 of CountUp (you can pin at 2. When running the Jest JavaScript testing framework in a React app, you may encounter an error such as the following: Jest failed to parse a file. i setup jest and enzyme in my react-typescript project. This was as per the docs import { syntaxError: Unexpected token 'export' module. Reading through the changelog and going through the steps outlined might help. This happens e. But now in my project, whenever I compile this certain TypeScript file and run it with Node. 34 Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' 910 How do I run a single test using Jest? 416 ReactJS: unexpected token '<' 252 Jest: SyntaxError: Unexpected token 'export' happens at tslib. js + typescript + jest Unexpected @panudetjt This should already work. I am having problem with react setup via CDN. SyntaxError: Unexpected token 'export' Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. json to use the ES6 module, and previously it was using the UMD module. But the change that I believe caused the issue was in 2. About; Jest says SyntaxError: Unexpected token export - React, Material. Problem with using Next in React app React. Viewed 19k times 7 . Jest test fails SyntaxError, unexpected token Export. By Hello @nihal-zaynax, thank you for reporting this problem!The issue seems to be caused by a design decision made by nextjs not to transpile ES6 packages from node_modules. next. hkkzgm mjznxgm qaom cwdw ovq rklnv qveu dbk gskd rojsikc inm arye akkg suuq xmsw