SpaceGuides/Updated 2026-10-21
Fix a TypeScript error with AI
To fix a TypeScript error with AI, paste every line of the diagnostic — the second and third lines usually name the real mismatch — then ask for a minimal diff that does not use any or as.
- 1. Paste the whole diagnostic. Include the error code, every line, and the file names. A screenshot of one red squiggle drops the chain that explains the mismatch.
- 2. Separate code bugs from type bugs. Ask the model to say whether the runtime value is wrong or only the type is wrong.
- 3. Forbid any and as. Tell it to change the shape or the call site. A cast that silences the compiler is not a fix.
- 4. Ask for one regression check. A single test or assertion that fails before the patch and passes after it.
The line TypeScript highlights is often downstream
“Type A is not assignable to type B” is reported where the assignment finally fails. The missing field is often in a type defined in another file. When you fix a TypeScript error with AI, paste the full chain and 20–30 lines around the reported line, plus the type that A and B come from if it is short.
Runtime TypeErrors are a different job. Cannot read properties of undefined (reading 'map') is usually a render-before-data bug, not a generic problem. Pair this page with the paste stack trace AI guide when you have frames, not just a red underline.
Three errors this playground is meant to answer
Keep each session to one diagnostic. Mixing three errors in one paste produces a blended patch that fixes none of them.
- TypeError: Cannot read properties of undefined (reading 'map') — ask for a loading guard or a default array, and name the parent that renders early.
- Type X is not assignable to type Y — ask for a property-by-property diff and whether the value or the type should change.
- Cannot find module or a path alias failure — paste tsconfig paths and the import line, not the whole config if it is huge.
Prompt that stays small
Role: senior TypeScript engineer. Output: (a) what the compiler thinks is wrong, (b) what is actually wrong, (c) a minimal unified diff, (d) code change versus type change. Do not use any or as. Temperature stays low so the patch does not wander.
The playground demo “Paste error → patch” is the fastest way to try this on MiniMax M3.1 Flash. Check the credit estimate first. A single diagnostic plus a short snippet stays well inside the free signup balance.
Questions
How do I fix a TypeScript error with AI without any?
Paste the full diagnostic and nearby code, and write in the prompt that any and as are not allowed. Ask whether the code or the type should change.
Why does the model fix the wrong line?
The highlighted line is often downstream of the real mismatch. Include the next lines of the diagnostic and the type definitions they mention.
Is this an official TypeScript or MiniMax tool?
No. spacebunny.me is an independent playground for MiniMax M3.1 Flash. Review every diff before you commit it.