May the Strategy Be With You: A Dev’s Quest to Slay the If‑Else Dragon

Short summary

The Strategy Pattern encapsulates varying algorithms into separate, interchangeable classes, solving the brittleness of large if/else chains. By extracting each payment method into its own strategy class, you enable adding new methods without modifying existing code—and each strategy becomes independently testable. The author demonstrates real-world payoff: their payment module shrank from a 100-line monster to maintainable, plug-and-play components.

• •Strategy Pattern encapsulates algorithms to make them interchangeable, eliminating fragile if/else chains
• •Each strategy becomes independently testable and new methods can be added without modifying existing code
• •Real example shows payment module shrinking from 100-line nightmare to maintainable, plug-and-play components

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