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 problem
There are times when there is a need to separate the execution of a command from its invoker. Typically, this is when there is a type that needs to perform one of several actions, however, the choice of which action to use needs to be made at runtime
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