July 27, 2014
Swift is still under development, so there are a lot of things to be done from the Apple team. One of this things is the use of ranges in the
String type. One would expect to create a substring this way:
let substring = string.substringWithRange(2..5)
But unfortunately, this doesn’t work. There’s even a rdar filled for that. If we can use ranges using the two or three dot notation, it would be very nice to do it to create substrings. In the meantime, we can use the existing
let string = "string" as NSString let substring = string.substringWithRange(NSMakeRange(2, 5))
In this SO question you can find more ways to use ranges in
Hi 👋! I’m Álvaro, a software engineer living in Palma, Spain. My current focus is on the intersection of mobile, front-end engineering, design and product development.
The header image is a simulation of material orbiting close to a Black Hole. Original. Credits: ESO/Gravity Consortium/L. Calçada.