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iOS Build a Weather App with Swift Adding Weather Icons Adding Icons

Posted by david zere
david zere
293 Points

Failable init ? What class does he talk about it ?

Whats is it ? Was in taught on any other course ? Thanks

1 Answer

Jens Hagfeldt
Jens Hagfeldt
16,548 Points
Jens Hagfeldt
Jens Hagfeldt
16,548 Points

Hey david

As Pasan mentioned in the video the failable initializer is needed due to that the image icon might not be reached and if so the default image should be used instead.

Make a habit out of checking the links provided in the teacher notes in the courses as the often clarify concepts that you might need further explanation about. I don't think there is any course here on treehouse on that topic specifically, although it is mentioned briefly in several courses like this.

But just as Pasan said in the video you can find more information about failable initializers, how they work and why they sometimes are needed here: https://developer.apple.com/swift/blog/?id=17