Design Patterns: Strategy

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This is the second of an eight part series where Robert is joined by Phil Japikse to discuss design patterns. A design pattern is a best practice you can use in your code to solve a common problem. In this episode, Phil demonstrates the Strategy pattern. This pattern enables an algorithm's behavior to be selected at runtime.
Resources:
- Sample code: github.com/skimedic/presentat...
- Design Patterns: Elements of Reusable Object-Oriented Software book: www.amazon.com/Design-Pattern...
- Head First Design Patterns book: www.amazon.com/Head-First-Des...

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Опубликовано:

17 июл 2017

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Комментарии : 15

@fwd79 5 лет назад

Full list for this series: 0. SOLID Design Patterns (start from here): ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-agkWYPUcLpg.html 1. Design Patterns: Command/Memento: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-zRbHlDeon3E.html 2. Design Patterns: Strategy: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-QZIvlny1Onk.html 3. Design Patterns: Template Method: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MfAvs0n9uMs.html 4. Design Patterns: Observer and Publish-Subscribe: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-72bdaDl4KLM.html 5. Design Patterns: Singleton: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-sbML3xFHRbI.html 6. Design Patterns: Factories: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JEk7B_GUErc.html 7. Design Patterns: Adapter and Façade: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XYa0rmRMZ1Q.html 8. Design Patterns: Decorator: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6PPMR0GWrZQ.html

@master-azazel 3 года назад

such a great series. rewatching all of them before software architecture exam later this week

@sufianahmad7337 3 года назад

I love the videos but I don't know why there is not a playlist for design patterns as I want a sequence to learn all the design patterns. Overall it helps a lot.

@Hasi29347 3 года назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-QZIvlny1Onk.html&ab_channel=MicrosoftVisualStudio

@Jebusankel 7 лет назад

I thought the description of "changing behavior at runtime" was confusing because it just sounds like just regular conditional logic, like an if/else or switch. But the superhero example clarified it and especially the "do your thing" phrase. I would recommend just highlighting that the different strategies are being defined in a different place than they are being executed, whereas in simple conditional logic those are together.

@robotflynn1518 4 года назад

I think that is what 11:45 is about. The demo code doesn't really capture it, but they do talk about that fact several times. I agree it would be cool to have flashing letters to really drive the point home haha.

@danstoian7721 Год назад

I appreciate you guys so much for you work! It's good quality, yet simple! Good job!

@lingyongwang2817 5 лет назад

This is great. Thanks for sharing

@dzxxbj 7 лет назад

Can you provide the link of before video of this series?

@cyberclaim 6 лет назад

Guys that was hilarious! :) Loved it. Keep the good work!

@randomusername982374 7 лет назад

Thanks so much!

@kesavanarayana6257 6 лет назад

It very helpful if you can make video on dispatcher pattern

@user-um6rb3vk9e 9 месяцев назад

How many accounts do you have? Or you trading from a single one? tell us pls

@burnsnewman 4 года назад

I think a stateless example would be better.

@AdityaDodda 7 лет назад

I have seen lot of playlists on RU-vid for design patterns. This is by far the least useful for developers. it is good if you are real amateur and and want the intro paragraph as a dialogue. Chapter 1 is never coming. Too much philosophical talk.