Tips, Fixes & Bugs
Bite-sized developer lessons you can read in under a minute. Fresh content every day — tips, 1-min fixes, and real bug breakdowns, straight to the point.
Latest from each series
Stop Using map() for Side Effects
Using Array.map() for side effects leads to confusing code and unnecessary memory usage.
Fix “Too Many Re-renders” Error in React
This error happens when your component keeps updating state inside render, causing an infinite loop.
API Returns Cached Data Even After Update
Your API returns old data even after updating records due to caching issues in browser, CDN, or server.
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Today's challengeAll tips & fixes
19 items6 results
API Returns Cached Data Even After Update
Your API returns old data even after updating records due to caching issues in browser, CDN, or server.
Pagination Worked… Until Data Changed
Pagination broke in production because page numbers were used instead of stable identifiers.
Search Worked Locally but Failed in Production
A search feature worked perfectly on local data but failed in production because matching was case-sensitive in one environment and inconsistent in real records.
API Working in Postman but Failing in Browser
API works in Postman but fails in browser due to missing CORS configuration.
Why useEffect Runs Twice in React (Not a Bug)
If your useEffect runs twice in development, it is due to React Strict Mode and not an actual bug.
API Returning 500 Randomly (Async Bug You Might Be Ignoring)
Random 500 errors often come from unhandled async errors that silently crash your request flow.