As we know a string object have methods like uppercased, lowercased, capitalise.
I want to call selector at run time. For ex:
let aSelector = Selector("capitalise")
let str = "Good Morning"
//now i want to apply aSelector on str:
let finalString = str.aSelector
How can i achieve it? Thanks.
I have two constants file for two target. In these files i want to define selector let's say capitalise and uppercase. Now in my code which is common to both targets, I have a string it can be capitalise or uppercase, without any if else. ex :
str.thatSelectorInMyConstantFile
How about using a closure:
let stringOp = { (str: String) in str.capitalized }
OR
let stringOp = { (str: String) in str.uppercased() }
Then you'd use it like:
let str = "hello world"
let finalString = stringOp(str)
print(finalString)
Output:
Hello World
OR
HELLO WORLD
You can only call selectors on objects that inherit from NSObject, so you would not be able to use a selector on a string.
In general, you are able to do:
object.perform(#selector(ViewController.mySelectorMethod))
But you should explain what you are trying to achieve - selectors aren't used in the way you've described, and there is probably a more standard implementation of what you're aiming for.
