Javascript Design Patterns #3 - Strategy Pattern

What is the Strategy design pattern?
The Strategy pattern is a behavioral design pattern that enables you to define a group (or family) of closely-related algorithms (known as strategies). The strategy pattern allows you to swap strategies in and out for each other as needed at runtime.

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[mervinmarias]

Taught so many concepts in one video without even trying. You are a genius.

[earlworth]

Man, these are some of the best JS pattern tutorials on YT. Very clear and concise. Are you going to be doing any other patterns?

[viniciusmateus]

Nice tutorial, that Design Patterns series is what I needed. Thanks sir for the awesome content!!

[klaylton]

I had already researched a lot and could not understand so clearly. With your amazing didactics, it was very clear!

[audioplatform]

Oh my goodness.. This is very clear explanation!! Thank you

[kiranv]

oh man, this playlist is a gem💎Thank you for these videos 💌

[xgpdmdf]

Every good trader need to know this method. It helps a lot, so don't miss it

[traveltechtaste]

I couldn't find better explanation than this, thank you

[vmsurjf]

I like your videos on design patterns, very well explained!
And your code style is very interesting

[urban]

Hi there, really happy to find this channel you're at explaining things. You've earned a subscriber.

[jadelovecooking]

Well, actually I don't understand why we should use Strategy pattern . It seems like we have more code lines than just calling function, for example, fedex.calculate(package) ?

[g.albeiroc.]

Pretty easy as you explain this concepts.. ty

[carmenbravo]

man, this video is fantastic, it helped me a lot. Your explanation is clear and easy to understand and follow... well done!

[anilrajan]

This does not look like strategy pattern, because if there is a need to add a new behavior in calculating shipping cost, then you need to change all the Fedex, UPS, and UPSC. Strategy pattern the algorithm should be independent and therefore the class/function in this case should inject those algorithm.

[EdwardElric-ufrr]

I love your videos, i just wish you would have done this using the new class syntax.

[rajd]

Amazing, Your videos are insightful, please upload more videos 👍👍

[neuodev]

My "Strategy" to learn Design Patterns is to watch this playlist :)

[johny]

This tutorial is very useful. Thank you😊

[naythaniel]

Wouldn't it be easier to have a method to register all or add additional strategies to the Shipping class and then in calculate you say which strategy you're using? This way you could hypothetically only call setStrategy a single time with all of the strategies. Calculate would have an extra parameter, but this seems like it would be easier to use, to me. This would also be easier to use for handling getting all of the supported strategies from a database and saving them to the state of Shipping or adding new supported strategies. Anyway, just my 2 cents.

[jimi]

nicely done thank you
i love this basic explaination thank you