« Previous
Next »
Summary
Wrapping up the design patterns track with what you can ship and where to go next.
What you learned
EXAMPLE
# Design patterns summary You can now: - Recognise when Strategy, Decorator, Adapter, or Observer fits - Use Factory + Builder for complex construction - Apply State + Template Method for clean lifecycle code - Spot anti-patterns (god classes, Singleton abuse) - Refactor with measurable goals - tests stay green, code reads better - Talk about patterns as vocabulary, not boilerplate Next steps: - Read 'Design Patterns: Elements of Reusable Object-Oriented Software' once - Read 'Patterns of Enterprise Application Architecture' (Fowler) - Try DDD tactical patterns (entity, value object, aggregate) - Submit one refactor PR that applies a pattern - and one that removes one What to avoid: - Applying a pattern because you read about it - Building infrastructure for patterns the codebase does not need - Singletons that hide global state - 'Just a function' is often the right answer
Why it matters
Patterns are vocabulary, not boilerplate. The best PRs that introduce a pattern delete more code than they add. Knowing when NOT to apply a pattern is half the skill - that judgement comes with years of reading code.
Tip: Tweak the snippet with Try it Yourself », then sit the quiz at the bottom of the page.
Example
« Previous
Next »
Discussion
Loading…