IOS, Swift 5, Interview Theory, Tutorial, #08 P2: Enumeration ( Associated Values )
IOS, Swift 5, Interview Theory, Tutorial, #08 P2: Enumeration ( Associated Values )
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Welcome to Theory, Tutorial, #02 : Enumeration
Level : Beginners
An enumeration defines a common type for a group of related values and enables you to work with those values in a type-safe way within your code.
If you are familiar with C, you will know that C enumerations assign related names to a set of integer values. Enumerations in Swift are much more flexible, and don’t have to provide a value for each case of the enumeration. If a value (known as a raw value) is provided for each enumeration case, the value can be a string, a character, or a value of any integer or floating-point type.
Alternatively, enumeration cases can specify associated values of any type to be stored along with each different case value, much as unions or variants do in other languages. You can define a common set of related cases as part of one enumeration, each of which has a different set of values of appropriate types associated with it.
Enumerations in Swift are first-class types in their own right. They adopt many features traditionally supported only by classes, such as computed properties to provide additional information about the enumeration’s current value, and instance methods to provide functionality related to the values the enumeration represents. Enumerations can also define initializers to provide an initial case value; can be extended to expand their functionality beyond their original implementation; and can conform to protocols to provide standard functionality.
For more about these capabilities, see Properties, Methods, Initialization, Extensions, and Protocols.
You will be learning :
Enumeration,
Associated Values, Associated ,
and Swift Interview Theory
This Project Source Code :
GitHub : https://github.com/soonin/iOS-Swift-P...
GitHub: https://github.com/soonin/iOS-Swift-P...
Reference: https://docs.swift.org/swift-book/Lan...
licensed under Creative Commons
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IOS, Swift,Interview , Theory, Tutorial, Tricks, programmatically , Xcode , Beginners, intermediate , senior ,
Enumeration,
Associated Values, Associated ,
References & Related links :
https://docs.swift.org/swift-book/Lan...
