TanStack / TanStack/virtual

Module parse failed

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#797 4 comments 5 reactions 0 assignees View on GitHub

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Dominant language
TypeScript
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Description

Describe the bug
./node_modules/@tanstack/virtual-core/dist/esm/index.js 254:22
Module parse failed: Unexpected token (254:22)
File was processed with these loaders:
 * ./node_modules/babel-loader/lib/index.js
You may need an additional loader to handle the result of these loaders.
|         startIndex,
|         endIndex
>       } = this.range ?? {
|         startIndex: void 0,
|         endIndex: void 0

Hi guys, can you help me with this problem? I already use:

"@babel/plugin-proposal-nullish-coalescing-operator"
"@babel/plugin-proposal-optional-chaining"

This error happen only when i use useVirtualizer()

Your minimal, reproducible example
Steps to reproduce
  • Install the library
  • Try to use useVirtualizer()
Expected behavior

It should work without problems

How often does this bug happen?

Every time

Screenshots or Videos

No response

Platform

macOS

tanstack-virtual version

^3.9.0

TypeScript version

^4.7.4

Additional context

No response

Terms & Code of Conduct
  • I agree to follow this project's Code of Conduct
  • I understand that if my bug cannot be reliable reproduced in a debuggable environment, it will probably not be fixed and this issue may even be closed.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing useVirtualizer() with tanstack-virtual ^3.9.0 and TypeScript ^4.7.4, then inspect node_modules/@tanstack/virtual-core/dist/esm/index.js around line 254 and the Babel loader configuration. Done means the consumer build parses the module and useVirtualizer() works without requiring an additional loader.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
frontend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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