October 2017
Intermediate to advanced
210 pages
5h 32m
English
Content preview from Swift 4 Protocol-Oriented Programming - Third Edition
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Understanding the solution
The strategy pattern tells us that we should encapsulate the algorithm in a type that conforms to a strategy protocol. We can then provide instances of the strategy types for use by the invoker. The invoker will use the interface provided by the protocol to invoke the algorithm.
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