?? Unleashing the Power of the Strategy Pattern: your code might not need so many ifs!

Scalability and Flexibility in Your Code!

?? When to use it? The Strategy Pattern is ideal when:

• You have multiple variations of an algorithm or behavior, such as different ways of calculating shipping, integrating APIs, or manipulating data.
• You want to reduce the complexity of a class that contains many conditions (if/else or switch).
• You need to add new behaviors or algorithms without altering the existing code, adhering to the Open/Closed principle of SOLID.

? Advantages:

• Modular and clean code: Each strategy is encapsulated in a separate class.
• Easy extension: Adding new strategies does not require changes to existing code.
• Code reuse: Strategies can be reused in different contexts.
• Testability: Each strategy can be tested individually.

? Disadvantages:

• Additional complexity: Can create many classes if there are many strategies.
• Initial overhead: Requires careful planning and implementation upfront.

?? Practical example:

?? Why use the Strategy Pattern for payment methods?

• Scalability: Adding new payment methods (like Pix, Apple Pay, or Google Pay) is easy. Just create a new class that implements the PaymentStrategy interface.
• Maintainability: Each payment method has its logic isolated, reducing the risk of bugs when making changes.
• Reusability: Strategies can be used in different parts of the system, such as on the checkout page or in API services.

?? Conclusion:

The Strategy Pattern is a powerful approach to building flexible, scalable, and organized systems. It eliminates excessive conditions, makes maintenance easier, and improves testability. However, it's important to assess its use when the number of strategies becomes too large.