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10/17/2026
Big rewrites usually fail, but legacy code doesn't have to stay scary. Learn a step-by-step way to refactor it safely with characterization tests, seams, the strangler fig pattern and feature flags.
By Muhammad Wilayat Shah
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10/17/2026
A repeatable seven-step process for turning a vague ticket into working, tested code, shown on one real example: detecting overlapping room bookings in JavaScript and PostgreSQL.
By Muhammad Wilayat Shah
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10/15/2026
LLM features that shine in demos often break on real inputs. Learn a practical way to test them with schema validation, small evaluation sets, CI checks, prompt-injection cases and production monitoring.
By Muhammad Wilayat Shah
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