Error during textUpdated

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#3,376 opened on Apr 24, 2025 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 2/5
Estimated time: 1-3 hours
Newbie friendliness: 55/100

Issue type: Bug
Clarity: Clearly specified
Activity status: Stale
Tech stack: typescript
Domain: frontend

Research direction

Start in packages/sandbox/src/index.ts at textUpdated around line 227 and the setTimeout in createTypeScriptSandbox around line 246. Reproduce disposal before the timeout completes, then verify the sandbox no longer throws when editor.getModel() is null.

Written by the indexing model from the issue text.

Description

short question before oepning a PR:

the following bug is part of the sanbox code , but not necessarily from the playground website ,im also using it in my own site
ive checked the code, and it looks similar enough so i assume it could be considered a bug
(update: ive played around a bit on the website and it seems that due to the amount of entire page reloads ur doing this is not an issue here 🤔)

Page URL: local page

Issue:
in https://github.com/microsoft/TypeScript-Website/blob/v2/packages/sandbox/src/index.ts#L227

const code = editor.getModel()!.getValue()

im getting

TypeError: can't access property "getValue", editor.getModel() is null
textUpdated index.ts:227
createTypeScriptSandbox index.ts:246

coming from the setTimeout in
https://github.com/microsoft/TypeScript-Website/blob/v2/packages/sandbox/src/index.ts#L246

i think this is mainly caused when the editor is disposed before the setTimeout finishes

my PR would just be to return the function if the model isnt there currently , this way there at least isnt an error

Dominant language: TypeScript
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Merged PRs (30d): 5

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