Cursor
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Async/Await Promise Chain Broken
After Cursor refactored your async/await code, promises are no longer resolving correctly. Operations that should happen sequentially are executing out of order, causing data inconsistencies.
Async/await syntax or promise handling was likely changed incorrectly.
Error Messages You Might See
Cannot read property of undefined
Promise rejection: undefined
Data not loaded
Operation executed out of order
Common Causes
- Missing await on async function call, continuing before completion
- Promise.all used with dependent operations (order matters)
- Try/catch removed, unhandled promise rejections
- Async function syntax broken (async not declared)
- Return statement missing in async function
How to Fix It
Always await async calls: const data = await fetchData(). Use Promise.all for parallel: Promise.all([fetch1, fetch2]). Use .then() chain for sequential. Wrap in try/catch: try { ... } catch(e) { ... }. Verify async function returns Promise.
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Get HelpFrequently Asked Questions
When should I use Promise.all?
For parallel independent operations. Promise.all(promises) waits for all. Fails if any rejects.
How do I handle async errors?
try/catch with await. Or .catch() on promise. Don't ignore errors - they'll cause bugs.