Convert to TypeScript

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
15/100
Issue type
Refactor
Clarity
Needs clarification
Activity status
Stale
Tech stack
javascript, typescript
Domain
tooling

Research direction

Start with the TypeScript conversion checklist in phet-info at typescript-conversion/conversion-checklist.md, then review the neuron conversion status shown in this issue. The issue does not identify specific source files, tests, or a bounded completion target; done would require following the checklist through the JavaScript-to-TypeScript conversion and updating the status.

Written by the indexing model from the issue text.

Description

dev:typescript priority:5-deferred

This is a placeholder for a future conversion to TypeScript, as time and/or urgency permits. The current TypeScript conversion checklist is located here: https://github.com/phetsims/phet-info/blob/main/typescript-conversion/conversion-checklist.md

As of 8/12/25, the status of this sims' JS to TS is:

│ (index)                                  │ JS    │ TS    │ % Complete │ "@ts-expect-error" │
├──────────────────────────────────────────┼───────┼───────┼────────────┼────────────────────┤
│ neuron                                   │ 9481  │ 81    │ 0          │ 0                  │
Dominant language
JavaScript
Stars
1
Forks
3
No merged PRs in 30d

Contributor guide

No contributing guide indexed for this repository

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.

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