Always Use Interfaces overview

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How to follow the principle of Couple To Abstractions, Not Concretions, and how to avoid tempting others to break the rule.

Video Content: ---------------------------------- 0:00 - Intro 1:12 - Pseudocode Problem 2:39 - Inheritance Solution 4:21 -

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You've probably seen it: IOrderService, IEmailService, IPaymentService and every class has exactly one implementation.

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