While booleans (true/false) seem like a natural fit for binary decisions (e.g., isActive, isDeleted), they often fail to capture the nuance of real-world workflows. The author suggests replacing them with more expressive data types like datetime, enum, or status fields.
Booleans are limiting: A true/false flag doesn’t tell you when something changed or why. For example, isVerified = true lacks context — when was it verified? By whom?
Better alternatives:
Use a verified_at datetime instead of isVerified
Use status = ['pending', 'approved', 'rejected'] instead of isApproved
Use deleted_at timestamps instead of isDeleted
Future-proofing: What starts as a simple boolean often evolves. Adding new states later (e.g., suspended, archived) requires schema changes and code rewrites.
Debugging and auditing: Timestamps and enums provide richer data for logs, analytics, and debugging.
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