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JOWhy do we even need design patterns? 👇
Code starts simple…
but as features grow → it becomes messy 😬
👉 too many if-else
👉 duplicate logic
👉 hard to modify without breaking things
💡 Design patterns give a structured way to handle these problems
🟢 Creational
When object creation becomes messy
Example: payment methods (UPI, Card, Wallet)
🔵 Structural
When you want to add behavior without changing existing code
Example: adding logging & authentication to every API call
🟣 Behavioral
When system behavior changes based on situation
Example: payment flows, notification systems
🧠 Learn patterns → write clean, scalable code
#systemdesign #lld #softwareengineering #designpatterns #backenddeveloper frontenddeveloper
@journeywithpravallika
