November 2013
Intermediate to advanced
224 pages
6h 9m
English
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Choosing Default Values for Flags and Arguments
The existence of flags in an app’s user interface serves our guiding principle of making uncommon things possible, and providing good defaults helps make common things easy. A sensible default communicates your intention of how to use your app, since the default value makes a particular usage of your app very simple (we’ll see how to allow users to customize defaults in Chapter 6, Make Configuration Easy). Let’s see how to decide on good defaults both for the arguments given to flags and for the arguments to our app (see Chapter 2, Be Easy to Use if you need a quick review of the different parts of the command line).
Default Values for Flags
First, you should almost always have a default for ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.