Ts node unexpected token export json global ||= window; Make sure to add that before any imports. 9. This means that a file is not transformed through TypeScript compiler, e. To solve the "Uncaught SyntaxError: Unexpected token import" in TypeScript, set the module option to commonjs in your tsconfig. The latest ts-node does not require ts-node-script; that is the default behavior. What am I doing wrong? I want to parse the JSON into a JS object. Therefore jest fails, because it . After converting . 快速上手 TypeScript | Vue3 入门指南与实战案例. js. You are outputting the gulpfile using --module es2015, probably via a co-located tsconfig. Most ts-node options can be specified in a "ts-node" object using their programmatic, camelCase names. I can change foo. And you need to run node with the --experimental-modules flag. js:; export const magicNumber = 42; If you are using Typescript, I added the json() plugin after typescript:. ts undefined:1 '{module: ^ SyntaxError: Unexpected token ' in JSON at position 0 I am writing a backend server for my app and decided to change babel-node executor to ts-node. Currently, I'm migrating a react project Typescript but to do it as fast as possible and avoid more problems I' 原文地址:使用ts-node运行ts脚本以及踩过的坑 - 不作声 - 博客园-----我碰到的情况: 跟着下面的案例学习ts. mjs') Share. ts dynamically compiled by ts-node. to set type to module on your JS script tags in the browser. Asking for help, clarification, or responding to other answers. NODE_EN You signed in with another tab or window. I have TypeScript setup for es modules, but maybe there is something else I'm missing, tsconfig. This is my webpack. ts> (entry point of my typescript project), i get an unexpected token 'export' in the terminal, at the default export from "Unexpected token in JSON" when using `ts-node --compilerOptions` or `ts-node -O` Firstly, instead of using --compilerOptions/ -O, I recommend placing those overrides in your the problem was ts-node itself, it seems that doesn't support ESM modules and there are some symbols/tokens that doesn't know how to parse correctly. npx nx migrate latest didn't create any migration file (so it said). json file and make sure to compile your TypeScript files (e. js'; import { pKeys as prodKeys } from '. ESLint is built for JavaScript, and JSON's curly braces and commas can throw it off. From what I can tell, typescript developers think the generated export {}; is a feature in those files and provide the rationale (which many disagree with). Improve this question. I installed ts-node and copied the jest. Provide details and share your research! But avoid . json). npm install --save-dev --save-exact prettier echo {}> . export function flatten (target, opts) { ^^^^^ SyntaxError: Unexpected token 'export' I made sure my jest was properly installed and set up, as per Next. svelte files, not in the code editor but the server. ts I also was getting the same problem because I was trying to compile the . 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. it's not plain JavaScript. node --experimental-modules my-app. NODE_ENV === 'production' ? null : devKeys; export const pKeys = process. I worked around this by adding these modules to the transformIgnorePatters in my Jest config, but this doesn't seem like the way to go. json and yarn file (if you have one). /Math"; export * from ". js files of the current package, if you want to mix EsModule file PS G:\New folder> ts-node "g:\New folder\Session1. js, but the following code should do what you are trying to achieve: import { keys as devKeys } from '. Expected Behavior When ts-node starts with ES6+ module types, it I've tried changing the module, target etc and I cannot resolve it. ts file using node file_name. mjs export default { testEnvironment: 'node', extensionsToTreatAsEsm: ['. One other gotcha that can result in "SyntaxError: Unexpected token" exception when calling JSON. jest. in latest jest you do not need ts-jest and ts-node-dev, you also do not have to include jest. js docs, but still same issue. 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 for contributing an answer to Stack Overflow! Please be sure to answer the question. /prod. And this: console. parse() is using any of the following in the string values:. js:11 export { default as _BrowserDetection } from '. json from node_modules regarding ESM. /dev. By making it "^uuid$" this started working for me. json启动脚本"dev:esm": "node src/esm/index. Be sure to remove defition of global from vite. . json file. 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. 1 but the nullish coalescing operator (??), is relatively new and was added in node v14. json here. (Use `node --trace-warnings ` to show where the warning was created) g:\New folder\Session1. I'm use mocha for testing tsx component from command line. environment. json. ts files to . Create a file and name it . Reload to refresh your session. However, while running npm i, Search Terms ts-node esm "Uncaught SyntaxError: Unexpected token 'export'" Expected Behavior REPL should work in package - "type": "module", Actual Behavior I see last release v10. 16. json is configured as: 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 I had to do this to get ts-node, ts-jest and d3 all working together. SyntaxError: Unexpected token import- Node. org/ts-node/docs/troubleshooting. We recommend this because it works even when you cannot pass CLI flags, such as node --require ts-node/register and when using shebangs. To solve the "SyntaxError: Unexpected token 'export'" error, make sure: to set type to module in your package. To fix this, you can set tsconfigRootDir to __dirname, which would make the parser resolve the project configuration Make sure the back end returns json data by using res. backup or something, then invoking tsc --init to generate a known good file. In rare cases, moduleTypes Successfully merging a pull request may close this issue. So, the ormconfig. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. g. Was this fixed? Why d There are several threads on this when generating code for a ". ts file with ts-node because of issue: "SyntaxError: Unexpected token " My tsconfig. with ts-node), and not to run them directly with node. cd <root>/ yarn / installs all the deps. ts: const { optimize: { CommonsChunkP It's worth noting if you're using Next. File: rollup. it forum post by lukenzy. ts" file, even for a commonjs target. If you run eslint in a different working directory to the folder containing tsconfig. js is a local file, not a node module. And I tried with many solution with jest config, but it didn't work unless and until I have created jest. Force clean the entire NPM cache by using following command. 1. it. 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. 1 and you are currently using v17. ) (For a full list see the String section here. Noe that changes the handling of any *. Thank you 🙂. remove the package eg. Then i'm start the app by command ng serve in console i see error: VM1018:2297 Uncaught SyntaxError: Unexpected token export at eval (<anonymous>) at webpackJsonp. json is not applied to server. /src/components'; import * as fs from 'f You signed in with another tab or window. ts" (node:5020) Warning: To load an ES module, set "type": "module" in the package. You can then transfer your specific configuration into the newly generated tsconfig. Which you can do by following this repl. json, @typescript-eslint/parser will not be able to locate the file. env:. Using the following command worked for me with node v14. js to foo. 1 or a higher node version. declare global { namespace NodeJS { interface ProcessEnv { GITHUB_AUTH_TOKEN: string; NODE_ENV: 'development' | 'production'; PORT?: string; PWD: string; } } } // If this file has no import/export I can't use imports because I always have this error: (function (exports, require, module, __filename, __dirname) { import { expect } from 'chai'; SyntaxError: Unexpected token import In my file Use the CLI to help migrating it: ts-jest config:migrate <config-file>. json or use the . – Sadra Abedinzadeh You cannot use export inside if statements in node. None of the popular solutions here were working for me either. ts file and the quotes kept getting stripped off "uuid" and the fix didn’t work. foo. Node 9 In Node 9, it is enabled behind a flag, and uses the . 0 with ts-node for typescript To do so, just fix the scripts in the following way. npm安装ts-node,package. Here's how to handle this: Exclude JSON Files: Unless you specifically need to lint your JSON data, tell ESLint to ignore it. e. json("Your text here"); This is because your map function . x of jest so I think since I'm just now upgrading from 27. ts but that is not the solution. I was encountering a similar issue but fixed by adding below line to the top of my entry file (which was main. js import typescript from "rollup-plugin-typescript2"; import resolve 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 So I tried installing the prettier today, I followed the instructions straight from the docs. json" (or other JSON files) to the "ignorePatterns I had the latest version of nx, i. /upgrade"; my code imports this with traditional tree shaking import { verify } from '@example/package' my package. You have left out important details of your setup which is why others cannot duplicate this problem. Can't import ES6 react module. Issue : First of all, I'm not sure if this is a ts-jest issue or not, so sorry if I'm not reporting this in the proper place. ts from the docs. json file is 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. 5. replit Inside it, copy and paste the following code: As others have stated, the problem is that your tsconfig. json (recommended) ts-node automatically finds and loads tsconfig. x I'll stick with this solution for now. json file contains a top-level field "type" with a I was using a jest. In this case, lodash-es specifically exports es modules, so you HAVE to let jest transform that code. So even if you include a package for transformation by adjusting transformIgnorePatterns, the package will run through the typescript compiler, but typescript will not remove those ESM import/exports. Expected Behavior When ts-node starts with ES6+ module types, it behaves as usual as pre-ES6 module types, which is having a smooth "undefined Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. So, instead of using ts-node i ended up replacing it with tsx, that seems to have better support. config. Would someone be able to share a working config for Jest or help me out in any other way? Try setting ""type": "module"," in you package. json file on root directory. Delete your node_modules folder, package-lock. For this example foo. how to fix unexpected token parsing error? 0. that's why by default jest doesn't transform node_modules. 2 GIVE MJS FILE NAME IN YOUR EXPORT LIKE ( import { first } from '. /BrowserDetection'; ^^^^^ SyntaxError: Unexpected token export 19 | } from 'office-ui-fabric-react/lib 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 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 Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. ts and change the import in bar. mjs Search Terms REPL Unexpected token 'export' #1563 has it, describes wrong, closed with no fix. My command in package. So to use the ?? operator you need to update node in repl. json as well as the ts-loader configured in the webpack config I get Uncaught SyntaxError: Unexpected token import. My tsconfig. 0. I updated my jest. I managed to solve it by installing the below presets and having the babel configuration file as follows: It seems like the server is returning HTML instead of JSON. parse(body); } catch (ex) { console. json`). I am importing a library package that exports its components through an index file as follows: export * from ". This causes node to handle *. ts SyntaxError: Unexpected token 'export' in Nodejs project with Typescript and Webpack 1 webpack tsx Module parse failed: Unexpected token It looks as though you are using a gulpfile. json and typings. js or lacking any extension will be loaded as ES modules when the nearest parent package. However, your answer fixed this for me. If the server is not set up correctly, you'll need to correct that. because it is a JS file with TS syntax, or it is published to npm as uncompiled source files. // In . I prefer to use Babel, to trigger the Node. Search Terms REPL Unexpected token 'export' #1563 has it, describes wrong, closed with no fix. it's not pla Those who are using create-react-app and trying to fetch local json files. next/jest. ts-node -O '{"module": "commonjs"}' . json – Daniel Commented Sep 30, 2024 at 16:58 Issue : I am using ts-jest to test my typescript library. 22. js version than v17. moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node']}; Share Add a Node 12 Since Node 12, you can use either the . ts file. json have jsx compile option. I'm trying out typescript for the first time and am confused about the import/export procedures that I am used to using with es6. NODE_ENV === 'production' ? prodKeys : null; 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 By default, the projects (in parserOptions) are resolved relative to the current working directory. mjs like this:. import nextJest from 'next/jest. \lib\index. @JTHouk the flag is needed only befor v13, now flag was dropped. log(response. Follow asked Sep 12, 2021 at 17:09. So you are getting . To fix this issue, you need to check what the server is sending back and make sure it's returning a JSON object. d. /', }) // add any custom config to be passed to Jest /** @type 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 In my project I was upgraded nodejs version to 20 and after that test cases failed. json file, jest fails to import the import of my import which is causing npm run test command to fail with SyntaxError: Unexpected token 'export' at first line of my bar. I usually elect to not deal with it by renaming the file to tsconfig. When using that, in conjunction with renaming the When i try to run this code using ts-node <path/to/my/index. In my case it was failing because I did not set properly the typescript support for Jest. This is why you're getting the "Unexpected token '<'" error, because the HTML is not valid JSON. json then I create a . js) and add "data. mjs" 运行 npm run dev:ts 报错SyntaxError: Unexpected token 'export' Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I use nextjs import koa from 'koa' import next from 'next' import clear from 'clear' import body from 'koa-bodyparser' import cors from 'koa-cors' import logger from 'koa-logger' import Api from '. ts to tsconfig. You switched accounts on another tab or window. /scripts/generateTranslationFiles. I use for compilation ts-node package. map(res=> res. mjs extension. js files as EsModule files, instead of as CommonJS files. 1 many months ago (Jul 14, 2022). I used this as source and modified as per my requirement. json file in Node. In my case what I did: rm -rf node_modules/ for each packages & apps upgrade to the latest nest. Via tsconfig. ts file using tsc file_name. mocha --compilers ts:ts-node/ 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 I believe your case is pretty much similar to these ones: amcharts4 issue #2133 - github OR Jest encountered an unexpected token. Use --skipProject to skip loading the tsconfig. 6 now respects the package. Alright, I am simply dumb. Use ts-node --showConfig to help debug configuration issues: https://typestrong. Edit your ESLint configuration file (. Having setup my project from the latest svelte template with Typescript enabled, faced a similar "unexpected token" complaint when trying to import types into . I am trying to launch . I have this excpetion Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e. json is: "server": "cd server && ts-node --project Check your ts-config module settings to output to commonjs, and update your jest config's transformIgnorePatterns to transform your dependency since jest ignores node_modules by default. js makes it hard to transpile modules in node_modules, but you can modify the baked config in jest. /pg. json when using create-react-app. All you need to do is to install it globally like you did with ts-node: npm install -g tsx Had the same problem when using ts-node in a monorepo (Angular + Express + single package. But it should be like first compile . prettierign I'm getting SyntaxError: Unexpected token 'export' on some node_modules, which are not transpiled (I guess?). prettierrc. headers['content-type']); returns this: application/json; charset=utf-8. eslintrc. How to Once you have installed @types/node in your project, you can tell TypeScript exactly what variables are present in your process. New-line characters. /core"; export * from ". ts: import * as path from 'path'; import * as iconDefs from '. As in create-react-app, webpack-dev-server is used to handle the request and for every request it serves the index. For me, it is ^10. json or . ) I am trying to build an angular + typescript + webpack application. js'; ^^^^^ SyntaxError: Unexpected token 'export' What is the right way to solve this? I'm also getting this issue with node 13. ts There is a warning telling me that --experimental-loader is an experimental feature but I don't care because I only use it to debug the typescript code. Try setting " "type": "module", " in you package. js that you might be affected by this issue. 3. Create jest rafgraph changed the title TS config error: SyntaxError: Unexpected token 'export' TS jest. js' const createJestConfig = nextJest({ dir: '. ts:2 export {}; ^^^^^ SyntaxError: Unexpected token 'export' at 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 This problem can be occur when you are trying to work with an old react repository which is developed with a lower node. json somewhere in current or parent directory and {"type": "module"} in it and you can use ES6 imports. html. ts error: SyntaxError: Unexpected token A lot of node modules export ES5 so that jest can run it out of the box without transform. /verify"; export * from ". SyntaxError: Unexpected token < in JSON at position 0. /router' const dev = process. error(ex); } I get this error: SyntaxError: Unexpected token in JSON at position 0. env. ts wile import 'core-js/es6'; import 'reflect-metadata'; This works great on one project, however, another project with the same tsconfig. ts file in all my apps to match your snippet, and it worked. this is an interface I am trying to export in a file called repl. ts file as console app. From doc: Files ending with . ts file and then trying to run the same . At last, I found something. 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 export { default as v1 } from '. json()); is expecting a json response Share Improve this answer There could be a bunch of things that can go wrong when saving a file that would prevent correct parsing. You signed out in another tab or window. Nodejs v13 requires to have package. However, despite following dozens of how-tos and tutorials, I am not able to fix the issue below. 1: node --loader ts-node/esm --experimental-specifier-resolution=node index. ts-jest[config] (WARN) message TS151001: If you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig. To solve this, you need to eject the app and modify the webpack-dev-server configuration file. json points your entities to your ts files in your /src folder. window. As I understand the announcement typescript >5. Files in my src folder:. it uses node v12. js - SyntaxError: Unexpected token import (18 answers) Unexpected token 'export' javascript; function; export; Share. ts. That's fine but you need to target NodeJS's module system, a derivative of CommonJS, via Typescript as noted or via another intermediate compiler to get that to work. js'; export const keys = process. I have issues with Jest picking up an internal library, Jest would display 'unexpected token' errors wherever I had my imports from this library. I donc use "type": "module" in the package. script Unexpected token < in JSON at position 0" 2191. I am trying to generate React SVG icons components by using below TS script: scripts/generate. 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 For anyone using create-react-app, only certain jest configurations can be changed in package. mjs extension, or set "type": "module" in your package. When you build your project, it should point to where your entities are. ts then run the generated js file using node file_name. try { bodyObj = JSON. The transpiled JS on the failing one looks like this Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. /v1. ts in vue project). To Reproduce. 0. ts command. But it can't complile jsx. js (through tsc) there was no error, but I can't launch . drdwhzmzxiviyuznwbyvjbbikhozsjrjornhqsnqicmjstltkvebtihbaifydfpwfmadwxcuuhrtrdkpjyez
