June 2017
Beginner
330 pages
7h 30m
English
Content preview from Comprehensive Ruby Programming
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The LSP example
The following is an example for the LSP:
require 'date'class User attr_accessor :settings, :email def initialize(email:) @email = email endendclass AdminUser < Userenduser = User.new(email: "user@test.com")user.settings = { level: "Low Security", status: "Live", signed_in: Date.today}admin = AdminUser.new(email: "admin@test.com")admin.settings = ["Editor", "VIP", Date.today]puts user.settingsputs admin.settings
For our code walk-through, I created a basic User class in Ruby. Additionally, I built an AdminUser class that inherits from the parent User class. The classes have attributes for settings and an email.
In our case study, we decided to make an interesting decision to use the hash data type for our settings in the ...
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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.
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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.