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: Adapter, Bridge, Composite, Decorator, Facade, Flyweight, Proxy.

Fits more objects into the available amount of RAM by sharing common parts of state between multiple objects.

Use targeted search strings to find curated repositories that translate abstract patterns into clean code for your preferred stack: "design patterns" language:typescript "design-patterns" language:go "gof patterns" language:python 2. Audit Enterprise Codebases dive into design patterns pdf github

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Separates the construction of a complex object from its representation, allowing the same construction process to create various representations. 2. Structural Patterns (Assembling Objects and Classes) Audit Enterprise Codebases Frustrated

class CreditCardPayment: def pay(self, amount): return f"Paid $amount using Credit Card." class PayPalPayment: def pay(self, amount): return f"Paid $amount using PayPal." class ShoppingCart: def __init__(self, payment_strategy): self.payment_strategy = payment_strategy def checkout(self, amount): print(self.payment_strategy.pay(amount)) # Usage cart_one = ShoppingCart(CreditCardPayment()) cart_one.checkout(150) cart_two = ShoppingCart(PayPalPayment()) cart_two.checkout(45) Use code with caution. Best Practices for Applying Design Patterns

: A unique "Relations to Other Patterns" section explains how different patterns (like Factory Method and Abstract Factory) relate to or differ from each other. Key Learning Pillars dive into design patterns pdf github

Passes requests along a chain of handlers.