PromptVaultConvert callbacks into a behavior-preserving async function
For engineers replacing nested callbacks without silently changing error semantics.
Works with
- Codex
- GitHub Copilot
The prompt116 words · 1 blank
What you fill in
- Callback-based code
[callback_code]Examplefunction load(id, callback) { db.get(id, (err, row) => { /* ... */ }); }
How to use it
- 1Open it in PromptVault. Find it in Coding, or search for “Convert callbacks into a behavior-preserving async function”.
- 2Fill in the blank. callback-based code — the only things the prompt cannot know.
- 3Copy and paste it into GitHub Copilot. It also works with Codex.
About this prompt
“Convert callbacks into a behavior-preserving async function” is a intermediate coding prompt. For engineers replacing nested callbacks without silently changing error semantics. It is 116 words long and written to get a usable answer on the first message, in Codex and GitHub Copilot or any other chat assistant. Good for: refactoring, rewrite, legacy code and editing. Like every prompt in PromptVault, it was written and edited in-house, and it works offline once the app is installed.
More coding prompts
All 120 in Coding
Blocking I/O becomes cancellation-safe asynchronous codeFor engineers modernizing a real call path while preserving its observable behavior.- Collapse flag combinations into an explicit state machineFor engineers replacing scattered status checks with enforceable transitions and exhaustive tests.
- Dense conditions become named, readable decisionsFor beginners converting a hard-to-follow boolean expression without changing its result.
- Move supported code onto current APIsFor maintainers replacing obsolete usage with source-backed, compatibility-aware code.
- Vague TODOs become maintainable work markersFor maintainers replacing ambiguous code comments with bounded, actionable follow-up work.
- An opaque regex becomes a maintainable equivalentFor engineers inheriting pattern-heavy code; returns a documented, behavior-preserving regex.