Vitest Syntaxerror Unexpected Token Export. Jan 21, 2025 · Version ^5. But Angular’s own suppor

Jan 21, 2025 · Version ^5. But Angular’s own support for Vitest is the new thing, so I had to learn how to use it. g. Aug 15, 2024 · A Node program of mine that worked fine in Node v21 now immediately crashes with a syntax error in Node v22. Aug 17, 2021 · Test suite failed to run Jest encountered an unexpected token Jest failed to parse a file. Vite doesn't take into account tsconfig. js to run the code. Feature propos true A community for discussing anything related to the React UI framework and its ecosystem. Here's how to fix it. when your code or its dependencies use non-standard JavaScript syntax, or w Jest unexpected token 'export': How to fix Jest is a popular JavaScript testing framework. config. js src/test/setup. json by default, so you might need to install vite-tsconfig-paths yourself, if you rely on this behaviour. It looks like there is an issue with how Vitest interacts with the imports of Stencil JS. json has a type field set to module. The problem here is with the library that imports this (I don't know which one). Jan 30, 2022 · Jest: SyntaxError: Unexpected token 'export' Asked 3 years, 11 months ago Modified 3 years, 11 months ago Viewed 10k times. To fix this issue, you need to check what the server is sending back and make sure it’s returning a JSON object. While trying to import * as echarts from 'echarts/core'; it throws me the following erro Dec 27, 2024 · But the default export does not have div property when executed by Node directly (you can check this by node --input-type module --eval "import def from 'styled-components'; console. Currently I have to mock every view that utilises anything from calcite in order to get Vitest to work for me, otherwise it fails 100% of the time. Jan 22, 2024 · i cannot make eslint work in webstorm on my project,here is the error: SyntaxError: Failed to load plugin 'vitest' declared in Jun 19, 2025 · There has been Vitest support for Angular for a while, thanks to Analog and its plugin, which I also tried when Angular 18 came out, and it works just fine. Vite config interface does not know anything about Vitest and TS does not allow excessive properties (properties not defined by the type/interface) So Vitest must extend Vite config (defined as TS interface). 0) which reverts to exporting the plugin using Common JS. SyntaxError: Unexpected token "typeof" #7932 Unanswered andres-dos-santos asked this question in Q&A Jan 5, 2021 · Keep getting "SyntaxError: Unexpected token 'export'" - what can i do/ what is going wrong? Asked 3 years, 10 months ago Modified 3 years, 10 months ago Viewed 2k times Jan 22, 2022 · Jest encountered an unexpected token - SyntaxError: Unexpected token 'export' Asked 3 years, 11 months ago Modified 2 years, 10 months ago Viewed 55k times May 7, 2022 · Because this is how TypeScript works. In order to use this extended interface instead of the original one, you must first import it. Nov 16, 2022 · Hey! Thank you for taking the time to help us with the next library release. log(def. Mar 2, 2024 · To solve the error, set the type property to module in your package. json file. x of jest so I think since I’m just now upgrading from 27. ts:6 Uncaught SyntaxError: Unexpected token 'export' (at worker. Apr 8, 2024 · Discussion on issues with ESLint 9 flat config compatibility with TypeScript and troubleshooting steps. It's possible that you rely on baseUrl in your tsconfig. Aug 11, 2022 · It told us that the export keyword isn’t available when importing the bundled JavaScript into the browser. To configure vitest itself, add test property in your Vite config. We’re approaching this one as a release candidate because it contains quite a number of breaking changes. ts:6:1) #33 opened on Jan 8, 2023 by xiaoxixi6633 Feb 13, 2022 · Describe the bug Test fails with message SyntaxError: Unexpected token '<' when the component you test imports an svg. Reproduction The component I'm testing just has an svg import export enum Erro Apr 8, 2022 · Vitest 是一个由 Vite 提供支持的极速单元测试框架。Vitest 旨在将自己定位为 Vite 项目的首选测试框架，即使对于不使用 Vite 的项目也是一个可靠的替代方案。 Nov 2, 2023 · Unexpected token 'export' with vite dev server #26209 New issue Closed as not planned | Features | Description | Links Oct 1, 2025 · The JavaScript error "Cannot use import statement outside a module" can rear its ugly head in a number of ways. Luckily, Angular already has enough information in its docs to achieve this. All modern browsers support ECMAScript modules. json file, you can create one with the npm init -y command. Apr 14, 2020 · worker. Nov 6, 2023 · I'm encountering a really frustrating issue trying to use Vitest with the ArcGIS JS API. Mar 2, 2024 · To solve the "Uncaught SyntaxError Unexpected token 'export'" error, set the `type` of your `<script />` tags to `module`. When running JavaScript code that uses the export syntax, you need to enable ESM support, regardless if you use a browser or Node. The threads span a number of years - meaning that the issue keeps cropping up for people repeatedly. js npm vite vitest Improve this question asked Feb 7, 2023 at 17:50 fernando cuadros f fernando cuadros f Jan 21, 2025 · Version ^5. Dec 31, 2022 · I'm using react with ViteJS and Vitest for testing. Jul 27, 2022 · Vitest Unexpected token 'export' Asked 3 years, 5 months ago Modified 3 years, 5 months ago Viewed 3k times Dec 30, 2022 · vite-node SyntaxError: Unexpected token 'export' #2579 New issue Closed as not planned Jan 9, 2026 · Closing thoughts Bash’s “syntax error near unexpected token” looks vague, but it’s almost always telling you that the parser got lost because of something small and mechanical. We would like to show you a description here but the site won’t allow us. ts src/a Apr 24, 2023 · uniapp - 解决报错 SyntaxError: Invalid or unexpected token （SyntaxError: 无效或意外的令牌）Uniapp页面编译或打包报错无法运行白屏等问题 Sep 30, 2024 · A comparison of Jest and Vitest in terms of their features, performance, and developer experience to help you decide which JavaScript testing framework is best for your use case. 3 Link to Minimal Reproduction Visual Studio Code Steps to Reproduce Good time! Guys, importing charts "knocks down" tests written on vitest: SyntaxError: Unexpected token 'export' Alt I can assure you that I was receiving the error "Jest gives an error: "SyntaxError: Unexpected token export"" and the above change worked to remove this error. 4. If you don't have a package. However, you may encounter the error unexpected token 'export' when using Jest. 6k Star 15. Press space again to drop the item in its new position, or press escape to cancel. The fix is not to get clever; it’s to be methodical. Files ending with a . Try inlining it instead. json. Jun 2, 2023 · SyntaxError: Unexpected token '||=' while running Vitest testcase Asked 2 years, 7 months ago Modified 2 years, 7 months ago Viewed 2k times Apr 7, 2022 · Which @angular/* package (s) are the source of the bug? core Is this a regression? Yes Description I have updated the Angular from 12 to 13. This error can occur for a variety of reasons, but it is usually caused by a syntax error in your code. If you are not using vite, add defineConfig imported from vitest/config to your config file: Dec 4, 2023 · The primary error seems to be SyntaxError: Unexpected token 'export' but I can’t figure out why temporal is having trouble building my typescript code (which does, in fact, use export). js extension are loaded as ES6 modules when the nearest package. Jun 5, 2025 · js file we would use the exports function. When I run the npm run dev command, the app will start and seems to work as it should, but during the build I always get t Dec 19, 2025 · Using Jest to test ECMAScript modules will return the error SyntaxError: Unexpected token 'export', as ECMAScript uses the import and export keywords where CommonJS uses require() and module. The line that triggers the error looks like this: import Aug 31, 2023 · When I try to run a test using MsalReactTester, I get the following error: Jest failed to parse a file. 3 Link to Minimal Reproduction Visual Studio Code Steps to Reproduce Good time! Guys, importing charts "knocks down" tests written on vitest: SyntaxError: Unexpected token 'export' Alt Dec 31, 2022 · I'm using react with ViteJS and Vitest for testing. Join the Reactiflux Discord (reactiflux. While dragging, use the arrow keys to move the item. exports. You'll also need to add a reference to Vitest types using a triple slash command at the top of your config file, if you are importing defineConfig from vite itself. Perhaps it was slower as you mention, but at least the tests worked. div)"). Addin Jul 15, 2023 · I am trying to use Apache echarts inside a svelte/svelte-kit project for dynamic data visualization purpose. Reproduction Download pyodide full version from the release page and extract it to sr Nov 23, 2025 · Describe the bug Description When running tests with Vitest 4. Use bash -n to pinpoint, check the line before the error, and scan for missing delimiters. Oct 19, 2025 · The SyntaxError: Unexpected Token 'export' error in Jest TypeScript projects can be a common roadblock, but by understanding the root causes and following the usage methods, common practices, and best practices outlined in this blog post, you can effectively resolve this issue. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. Many of the threads are long. 7k Feb 23, 2021 · 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. Haven't you ever been annoyed by the common SyntaxError: Unexpected token 'export' that you get when you forget to downgrade ESM to CommonJS in Jest, and the weird negative regex in transformIgnorePatterns? Mar 1, 2022 · Describe the bug If we use vite worked with some 3rd library like pyodide, they will get an error like Uncaught SyntaxError: Unexpected token 'export'. Oct 15, 2022 · vitest-dev / vitest Public Sponsor Notifications You must be signed in to change notification settings Fork 1. Jun 29, 2022 · I'm trying to create a production build of my React application with Vite. I have set up the config for vitest and the test setup file too as you can see in the screenshots below. This tutorial shows you how we fixed it! Vite creates a modern bundle using ECMAScript modules. here's the error I'm getting: I found a lot of sources on similar issues about the topic but nothing I tried worked. 13, certain test files fail with a SyntaxError: Unexpected token 'typeof' during the transformation phase. When I run the app I am getting the error "Uncaught SyntaxError: Unexpected token 'export". Aug 10, 2023 · The export keyword is an additional JavaScript syntax that’s not supported by default. Sep 6, 2023 · To pick up a draggable item, press the space bar. This happens e. Or rewrite your path to not be relative to root: Make sure you don't have relative aliases. 0. Feb 7, 2023 · node. vite. com) for additional React discussion and help.

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