October 2014
Intermediate to advanced
280 pages
7h 20m
English
Content preview from Programming ElixirBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
Your Turn
- Exercise: LinkingModules-BehavioursAndUse-1
In the body of the def macro, there’s a quote block that defines the actual method. It contains
IO.puts "==> call: #{Tracer.dump_definition(unquote(name), unquote(args))}" result = unquote(content) IO.puts "<== result: #{result}"Why does the first call to puts have to unquote the values in its interpolation but the second call does not?
- Exercise: LinkingModules-BehavioursAndUse-2
The built-in function IO.ANSI.escape will insert ANSI escape sequences in a string. If you put the resulting strings into a terminal, you can add colors and bold or underlined text. Explore the library, and then use it to colorize our tracing’s output.
- Exercise: LinkingModules-BehavioursAndUse-3
(Hard) Try ...
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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.