Menu
In which file can I define a typealias that works in the whole project, etc.
typealias S = String
984
A type alias allows you to provide a new name for an existing data type into your program. After a type alias is declared, the aliased name can be used instead of the existing type throughout the program. Type alias do not create new types. They simply provide a new name to an existing type.
A typealias can be declared in Swift using the typealias keyword followed by the type you want to assign. A very simple example to understand how they can be used is by making an alias for currency, like Dollars.
In Swift, typealias is a function that gives a new name, or an alias, to an existing type. This type can be a concrete type, like Double or a custom structure, a compound type, like tuples, or a complex closure type.
the typealias works the same way as variables. If you want to be global put it outside the class scope at any file.
119
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
