The Bug That Took 10 Minutes to Fix and 3 Days to Find
A developer spent three days debugging a bug that ultimately took only ten minutes to fix. The issue arose from a function that failed to handle an empty list, leading to silent failures and confusion for users. This experience highlighted the importance of questioning assumptions and understanding the code thoroughly.
- ▪The bug was caused by a function that processed user inputs but did not handle empty lists correctly.
- ▪It took three days of investigation to identify the issue, which was a simple oversight.
- ▪The developer initially blamed various factors, including the framework and the AI-generated code, before realizing the root cause.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3735796) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Harsh Posted on Jun 3 The Bug That Took 10 Minutes to Fix and 3 Days to Find #productivity #discuss #learning #programming The fix was one line. if not items: return [] Enter fullscreen mode Exit fullscreen mode That's it Three words a colon and a pair of brackets It took me 10 seconds to type. 10 minutes to test and verify 10 seconds to deploy. It took me 3 days to find.
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