Join Scott Gardner for an in-depth discussion in this video Use if case and for case, part of Swift 3 Essential Training: Beyond the Basics.
- [Instructor] In the basics course,…I show you how to use if and for statements…and switch statements too.…Imagine if you could combine the two.…Swift includes the if case and for case statements…for when working with enumerations with associated values.…I'm starting off with the definition…of a number enumeration and a sum number constant…equal to number.floatingpoint…with an associated value of 12.34.…If I want to do something with that value,…I could use a switch statement.…
For the floating point case, I do something with that value,…but for the other two cases, I simply break…because I'm not interested in those values at the moment.…If I really only cared if the sum value…constant was a floating point value,…I could pair down the switch statement a bit…by adding a default case and removing the other two cases.…
That actually only saves me a single line of code,…but at least it helps better convey…intention with a switch statement,…but it's still a lot of boilerplate code…when all I wanted to do was work with…
- Adding source files, resources, links, and literals
- Adding pages to a playground
- Using overflow operators and bitwise operators
- Using ranges with strings
- Creating complex sequences
- Chaining higher-order functions
- Defining lazy properties
- Using failable initializers
- Mutating methods
- Working with singletons
- Nesting function types
- Creating error types and recursive enumerations
- Extending concrete types
- Referencing selectors and key paths
- Working with protocol-oriented programming
- Defining class-only protocols and optional protocols
- Using option sets, type checking, and casting operators
Skill Level Intermediate
Core Data for iOS and macOS Enterprise Developerswith Jon Bott1h 46m Intermediate
Distributing Your iOS App for Testing with TestFlightwith Ron Buencamino35m 10s Intermediate
iOS App Development: Test-Driven Developmentwith Harrison Ferrone2h 14m Intermediate
3. Strings and Characters
4. Sequences and Collections
5. Control Flow
6. Value and Reference Types
9. Access Control
Understand access control3m 47s
Next steps1m 2s
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