November 2016
Intermediate to advanced
480 pages
14h 42m
English
Content preview from Swift Programming: The Big Nerd Ranch Guide
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Bronze Challenge
Create a new String instance called empty and give it an empty string: let empty = "".
It is useful to be able to tell if a string has any characters in it.
Use the startIndex and endIndex properties on empty to determine whether this string is truly empty.
Next, consult the documentation via the Help menu item in Xcode for a cleaner way to accomplish this check.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.