Follow @engineerinazure This code passed review… but would it survive production? 👀 Set vs Map isn’t a syntax question — it’s a data-model question. In prod, objects don’t get compared by value. They get compared by reference. And that’s where bugs hide.” Save this if you’ve ever debugged a ‘works locally’ issue 🚨 Share it with someone who still uses Set for object deduplication. #JavaScript #WebDevelopment #SoftwareEngineering #ProductionBugs #Debugging