Design Patterns Series #3 – Creational Patterns The feature request seemed simple: “We’re adding drone delivery next quarter.” You opened the order processing class, found…
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Builder Pattern: Stop Counting Commas
How many parameters is too many? Four? Six? There’s a constructor somewhere in every codebase that crossed the line, the one where you have to count commas to figure out which argument goes where, and where passing null for “optional” fields became completely normal.
Strategy Pattern: Stop Writing if-else Chains
It always starts the same way. A new feature request lands in your inbox: “We need to add Google Pay.” You open the payment processing class, scroll through the if-else chain that already handles Stripe, PayPal, and BLIK, and feel that familiar anxiety – because touching this method means you could break everything else that already works.