What is meant By Optional Value?

Question

How to use Optional Value in Swift Language?

You should have a look at Apple's The Swift Programming Language if you don't understand any swift concepts. https://developer.apple.com/library/ios/documentation/Swift/Conceptual/Swift_Programming_Language/GuidedTour.html#//apple_ref/doc/uid/TP40014097-CH2-ID1 — ABakerSmith, Apr 01 '15 at 08:06
http://stackoverflow.com/questions/24003642/what-is-an-optional-value-in-swift — Mehul Chuahan, Jul 23 '15 at 08:59

score 0 · Answer 1 · answered Apr 01 '15 at 06:05

0

Optional Value is unwrapped Value of variable,which means the value of that variable can be nil.

answered Apr 01 '15 at 06:05

Hemali Luhar

349
1
11

score -1 · Answer 2 · answered Apr 01 '15 at 06:37

-1

Optional value in Swift is similar to messaging nil in Objective-C, but in a way that works for any type, and that can be checked for success or failure.

answered Apr 01 '15 at 06:37

Ganesh Rs

1

What is meant By Optional Value?

2 Answers2