Syntaxerror unexpected token export jest nextjs json About; Products OverflowAI; 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; Angularjs:SyntaxError: Unexpected token ' in JSON at position 97 at JSON. import videojs from 'video. npx nx migrate latest didn't create any migration file (so it said). 3 project with typescript. Here’s an example: 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 Visit the blog Jest - SyntaxError: React Navigation - Unexpected token export for [node_modules\react-navigation\src\react-navigation. mjs. mjs" or Dynamic Import anywhere in the code: const myClass = await import(". Activate ESM support in the browser. Viewed 297 times Part of Google Cloud Collective 0 I'm trying to test a page in NextJs that has a firebase context provider that initializes firebase and another that controls access to firebase/auth. Jest - SyntaxError: React Navigation - Unexpected token export for [node_modules\react-navigation\src\react-navigation. This is one way for backward compatibility. /jest. I updated my jest. js SyntaxError: Unexpected token ‘export’ Last updated: January 02, 2024 Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. json file fully fixes the attached zip file. Marcus Greenwood Hatch, established in 2011 by Marcus Greenwood, has evolved significantly over the years. bundle. /MyClass. Welcome back! You've successfully signed in. "jsx": "react-native" Same as the "preserve" option, but the output will have a . See browser compat table on MDN and this Node issue. js. . This can happen for a number of reasons, but the most common cause is when you forget to use the `export` keyword. parse() is using any of the following in the string values:. Bug Report I have noticed relevant discussion and issue here. js:1] 95 Importing images breaks jest test The Jest SyntaxError: Unexpected Token ‘export’ is caused when you try to export a module in a way that doesn’t conform to Jest’s expectations. I have a monorepo with 3 packages, namely: web-app: A NextJS 12 project in Typescript web-core: A redux-toolkit project used in web-app web-ui: A storybook project with components which are being I was using a jest. I hope I can make it work. Commented Sep 12, NextJS Jest SyntaxError: Unexpected token 'export' Ask Question Asked 1 year, 10 months ago. Here's what you can do: • To have some of your "node_modules" files transformed, you can specify a custom 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; +1 to @Bergi's comment. This is incorrect. I can't find an answer or think of a reasonable explanation as to why everything works when I'm developing on localhost, but things constantly module. 0. ) 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: Unexpected token 'export' relating to the index file. Do the data fetching in an useEffect hook and store result in local component state. ts" for a TypeScript file. Things will not go well if you do. js; node-modules; Share. Spun my wheels with this for 20 minutes before I realized that my scripts in package. js --silent",. If so the issue is that while deploying on Vercel you are server rending your app and the API endpoint is not available yet. json { "type": "module" } What I have checked. Reload to refresh your session. You switched accounts on another tab or window. I first found this Jest issue #2550 it mentioned setting up transformIgnorePatterns 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 One such issue is the SyntaxError: Unexpected token 'export' when working with Jest. tsx Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Closed GalDayan opened this issue Feb 14, 2022 · 3 comments Closed SyntaxError: Unexpected token 'export' NX on NextJS #8956. json – Daniel Commented Sep 30, 2024 at 16:58 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 Thanks, exactly what I was missing in my config. I saw it on line 1, because line 1 is almost always occupied by an import statement - The package is using ESModules which Next. The most important thing is consistency. 3 to 27. Jest is historically bad with ESM and I don't believe they support it properly yet. GalDayan opened this issue Feb 14, 2022 · 3 comments Assignees. There is no need to use Babel for ECMAScript Modules, only if you want to use features of ECMAScript that are not supported by Node. // createJestConfig is exported this way to ensure that next/jest can load the Next. Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your I'm assuming that DOMAIN_NAME refers to the same Next. We could use babel-jest or ts-jest. FAIL __tests__/HomePage. js 12 supports out of the box, but it's probably missing something, maybe "type": "module" in its package. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Your link has expired. From James M Snell's Update on ES6 Modules in Node. When I run jest, I get the following error: Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. js (in all versions) uses Node. 6. Improve this question. Additional context. Navigation Menu Toggle navigation. ) (For a full list see the String section here. This means any code you import from node_modules need to be compatible with Node. x I'll stick with this solution for now. config. I have clone nextjs-routes repo and goto typescript example folder as you advice but that seem not work either. EDIT: This failed on jest 29. x of jest so I think since I'm just now upgrading from 27. exports are CommonJS. exports = { env: { test: { presets: [ [ '@babel/preset-env', { modules: 'commonjs', debug: false } ], '@babel/preset-flow', '@babel/preset-react' ], plugins I saw it on line 1, because line 1 is almost always occupied by an import statement - and there are no import statements in CommonJS. To distinguish between files containing Node Modules and files containing ECMAScript Modules, the latter need to be named . Then in your CommonJS code, you can import like this: Top of file import: import myClass from ". e. js to execute code for SSR or in API routes. 614 Unknown file extension ". 1. js:1 Uncaught SyntaxError: Unexpected token < main. js, you might encounter the SyntaxError: Unexpected token ‘export’ error. Tabs (yes, tabs that you can produce with the Tab key!) Any stand-alone slash \ (but for some reason not /, at least not on Chrome. SyntaxError: Unexpected token 'export' in Next. However, your answer fixed this for me. exports = require("@babylonjs/core") I'm using the standard nextjs setup with tsconfig. So you are getting . when your code or its dependencies use non-standard JavaScript syntax, or when Jest is I have a web app using Next 13 with a route. Maybe syntaxError: Unexpected token 'export' module. parse Hot Network Questions Omission of articles in older texts in latest jest you do not need ts-jest and ts-node-dev, you also do not have to include jest. Maybe Jest doesn't use Webpack so it doesn't know how to load other file extensions than js/jsx. Your code has to be in a module, as recognized by whatever environment is involved. 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 One other gotcha that can result in "SyntaxError: Unexpected token" exception when calling JSON. On running the test, below error occurs: ({"Object. Stack Overflow. Ask Question Asked 2 years, 11 months ago. I have tried both pnpm and npm that I guess maybe because of package manager. ts file under the api folder that currently contains 2 different methods POST and DELETE. js:1] 3 SyntaxError: Unexpected token import with Jest + react-native-animated-ellipsis. 5. The output will have a . js application using the jest command: This error could be caused by a number of issues and is If you are developing with Next. igor. The Headache If you Google "jest unexpected token", there are several signs that this is a really nasty issue: There are a great many threads on the issue - on Stack Overflow and otherwise. js and package. To save people from having to unpack the . ts" for a Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I've been trying to figure this out for the past week. ts file and the quotes kept getting stripped off "uuid" and the fix didn’t work. I checked about the ESM imports but Node. Could you compare your project setup to the typescript example to see what is different?. #9635 #9404 #9446 I use openresty (ran in docker) to build reverse proxy between my OpenWebUI and a public url. 1. 1553fdd. Sign in Product GitHub Copilot. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. it's not plain JavaScript. Works like a charm 👍 – Anton Egorov 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 SyntaxError: Unexpected token 'export' NX on NextJS #8956. But even the best frameworks can sometimes throw errors. Typescript and nextjs: SyntaxError: Unexpected token 'export' 0. Viewed 1k times 6 . mjs extension. Follow asked Sep 12, 2021 at 17:09. So basically my problem is that the response is not what I'm expecting and I'm not prepared to handle a different kind of response? SyntaxError: Unexpected token 'expor Skip to main content. test. js extension. json file To solve the error, set the type property to module in your package. 1 React and NextJS: Module parse failed: Unexpected token . 3 but succeeded on jest 29. 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 Visit the blog 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 // ⛔️ Uncaught SyntaxError: Unexpected token 'export' export class Person {constructor (first) {this. As in create-react-app, webpack-dev-server is used to handle the request and for every request it serves the index. Asking for help, clarification, or responding to other answers. You cannot mix and match. 3. Jest: SyntaxError: Unexpected token 'export' happens at tslib. 0 NextJS - react_devtools_backend_compact. js supports ECMAScript Modules natively. In . js 12 : ESM Imports, but I think it is not related to this problem Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. igor script. json and Next tries to Running into the following error when trying to run unit tests for a Next. I get this error: C:\Users\myname\Projects\ConfigEditor\MesConfiguration. json pointed to an external jest. Modified 1 year, 11 While import is indeed part of ES6, it is unfortunately not yet supported in NodeJS by default, and has only very recently landed support in browsers. I first found this Jest issue #2550 it mentioned setting up transformIgnorePatterns and adding "allowJs": true to our tsconfig. json and jest. Modified 1 year, 10 months ago. Node. It’s fast, flexible, and easy to use. To add support for other extensions you need to write custom transformers. 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. Here's what you can do: • To have some of your "node_modules" files transformed, you can specify a custom 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 You signed in with another tab or window. js:24 I had the latest version of nx, i. it's not pla SyntaxError: Unexpected token '<', "<!DOCTYPE " is not valid JSON . d6f56a1. To solve this, you need to eject the app and modify the webpack-dev-server configuration file. In the Auth Context I import things I need 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 Those who are using create-react-app and trying to fetch local json files. Why does fresh Next. Moved the moduleNameMapper config to that file and then it worked. Note that Node. Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' 1 Can not run unit tests through jest framework because of SyntaxError: Unexpected token export EDIT: Removing the rootDir parameter from the tsconfig. Labels . 1 NextJS: TypeError: Cannot read property 'json' of I will try to implement the code the way you mentioned and see what I can get. zip file, here's the tsconfig. Also, getStaticProps does not have access to the incoming request (such as query parameters or HTTP headers) see getStaticProps docs. jsx extension. To use the export/import keyword, you need to activate the ESM specification. js:1 Uncaught SyntaxError: Unexpected token < polyfills. Hot Network Questions How can magic which You tried to make your GetSlides component async. New-line characters. both of them not work. json I'm refering to this Babylon documentation and using the examples verbatim. Both methods receive the request successfully but when trying t Issue : I am using ts-jest to test my typescript library. When I try running tests for any component that uses react-markdown I get some issues here Jest encountered an unexpected token Jest failed to parse a file. SyntaxError: Unexpected token < in JSON at position 0. Thank you 🙂. js ala "test": "jest --config=. json file: Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. js' import abLoopPlugin from 'videojs-abloop' abLoopPlugin(window,videojs); package. json file on root directory. /src/styles into the build command. Provide details and share your research! But avoid . If a component is single, and not importing anything else, "npm test" runs smoothly. js:FetchError: invalid json response body Unexpected token < in JSON at position 0. Earlier this config was in package. Add a transform for js which uses babel-jest-- Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' Update my tsconfig to output commonJS modules Update my tsconfig to allowJs:true and update my jest transforms to parse JS with ts-jest export { download }; ^^^^^ SyntaxError: Unexpected token 'export' javascript; function; export; Share. json but not working, and for the github answer I don't think is related because I can run the app in Android Simulator but not working in Jest Testing. import and export are ES6. I finally found a workaround for this. Marcus, a seasoned developer, brought a rich background in developing both B2B and consumer software for a diverse range of organizations, including Thanks for reporting this. I have used transformIgnorePatterns in jest config file which help us ignore node_modules which not supporting current nodejs version The only way I could get this to work for myself was to add: { "targets": { "node": "current" } } So that my presets read: I two files : index. mjs"); I am now using React Jest to test code. You may need to look at something like babel-jest to 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 @panudetjt This should already work. js:13441 Warning: Detected multiple renderers concurrently rendering the same context provider. json: index. The issue started when updating Jest from 26. 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. Essentially my pack contains a few different classes and I try to export them in index so the code using this package has access . You signed out in another tab or window. Related questions. imported by Node. There are no module issues there, as long as a number of other issues you may find with Jest. If you can, consider migrating to modern test frameworks, like Vitest. require and module. Marcus, a seasoned developer, brought a rich background in developing both B2B and consumer software for a diverse range of organizations, including Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". js - SyntaxError: Unexpected token import. <anonymous>":function(module,exports,require,__dirname,__filename,jest){export SyntaxError: Unexpected token 'export' The issue started when updating Jest from 26. To activate ESM support in the browser, you need to specify the type="module" attribute in the <script> tag. first = first;}} # Set the type property to module in your package. Step 1: installation: Hi redwood community! I am trying to use react-markdown in a new redwood 4. WebClient\node_modules\tslib\tslib. /src there are server, two react entry points (one for client and one for admin) and styles, so I've also added --ignore . I recommend using ts-jest for simplicity. An asynchronous function is declared inside the effect callback since react hooks are also synchronous. js files: tsconfig. ts file in all my apps to match your snippet, and it worked. This following And I tried with many solution with jest config, but it didn't work unless and until I have created jest. json. Another way to import ES6 module from CommonJS is to rename your ES6 module file to have . So, we need transform the code to a supported module type. This did not work, what did solve it in the end was adding the following to our jest. – Sadra Abedinzadeh Solving Next. blocked: repro needed outdated scope: testing tools Issues related to Cypress / Jest / Next. ts to tsconfig. js:1 So, it seems like it is a misplaced character but in my local As answers above have described, Jest doesn't support ES6 modules. It's trying to use ES modules syntax (import / export) but to do that, it needs to declare it in its package. Jest gives an error: "SyntaxError: Unexpected token export" 2 Test Vue with Jest fail, Jest encountered an unexpected token, SyntaxError: Unexpected token import As React applications grow more complex, the patterns that were “just fine” when you were starting out might start to feel limiting. Export default Error: The default export is not a React Component in page: "/" 5. Follow edited Jul 12, 2022 at 19:19. js'; ^^^^^^ SyntaxError: Unexpected t How are you running your tests? Do you run them also using Webpack? Or even babel-node?The issue is Webpack understands that this code needs bundled where as if you are just trying to run tests via Node then Node won't understand that, in fact unless you have ESM enabled, it won't even understand import. Now I want to test multiple components together, and I immedia Unexpected token < in JSON at position 0 means the JSON returned by the API is not valid. SyntaxError: Cannot use import statement outside a module in typescript. Jest SyntaxError: Unexpected Token ‘export’ Jest is a popular JavaScript testing framework. javascript; node. js:1 Uncaught SyntaxError: Unexpected token < vendor. exports = createJestConfig(customJestConfig); I'm trying to write a test case in a NextJS application using Jest. 81 1 1 gold badge 1 1 silver badge 5 5 bronze badges. 94d0113. By making it "^uuid$" this started working for me. Modified 2 years , 4 months ago. js app have this error? 0. 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 @Elango for the answer in stackoverflow I already had it in package. I am wondering what I might be doing wrong. js: Uncaught SyntaxError: Unexpected token < inline. com. json file. 532 Node. – Pointy. In this comprehensive guide, we'll help you understand the cause of this error and provide a step-by Depending upon your setup, you might see the error on the first line of the code file or you might see it when the code tries to process JSX. This happens e. When I run tests on the project, I have the next problem on my project after intalling Swiper export { default as Swiper, default } from '. React doesn't work like that, the render function is 100% synchronous and should be free of side-effects. Thanks for any help. js (February 2017):. 1a152b6. g. : Use this when you're using babel-jest to transpile your tsx (or jsx) files. [next-auth][error][client_fetch_error] NextAuthJS CredentialsProvider "providers SyntaxError: Unexpected token < in JSON at position 0" Ask Question Asked 3 years, 3 months ago. You've successfully subscribed to Lxadm. es6. 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). Work is in progress but it is going to take some time — We’re currently looking at As React applications grow more complex, the patterns that were “just fine” when you were starting out might start to feel limiting. /core/core. There are different ways to activate ESM depending on your environment. 1 JSX error: Unexpected Token, expected "," 9 Next. This issue often occurs due to the use of ES6 modules or It appears to me that there is an issue in the package you're using. json: Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. js config which is async module. So I increased the time Skip to content. script. Next. Great! You’ve successfully signed up. html. js app?. txjjrqm xwxgjv wbli nwdlhtf tbmb abblro wme ttyofq wiz hryonz rryw qeskoyit jejv qwokr zduk