I've been building web applications for 8 years, and locale handling has always been my silent killer. Date formats break in production, currency symbols get mangled, timezone calculations drift—all caught too late. That's why I took TestSprite for a real project spin. Integration testing is boring, expensive, and brittle. Write 100 Selenium tests, change the UI once, watch 60 fail. Most teams eit
A few years ago I solved 200 LeetCode problems and still froze on Mediums I hadn't seen. The breakthrough wasn't another hundred problems. It was a different loop. A problem asks for the longest substring with at most K distinct characters. You've solved sliding window before. Maximum sum subarray of size K, done. Longest substring without repeating characters, done. This third one stalls you. Twe