Ruby Programming

Overview

This course will introduce the fundamentals concepts for the Ruby programming language. Ruby is an easy programming language to learn. Its popularly used by startups in developing web applications and for administering systems. Ruby was developed to make programmers happy and is popularly knwon for the Rails web application framework. Ruby is also the language used for developing Puppet, a systems automation software and MetaSploit, a security assesment framework.This course is designed for both programmers and developers who want to get the fundamentals of programming in Ruby.

Duration

The course is full time and runs over 5 days. This course is primarily offered as a private course to a team, group or a company.

Programming Experience

This is a beginner's course and no prior programming experience is required. A good command of computer skills, the command line or the terminal are required.

Technical Skill

We primarily use Linux or Mac during the course. A Windows machine can also be used but some things might not work. So technical knowledge on the Linux environment is required.

Private Training

This course is primarily offered as a private course. A minimum of 4 delegates is required to schedule the course. The course can be run on your premises or our premises. When run on your premises, the course costs R9 500 per delegate with a minimum of 4 delegates to schedule the course. The cost is R12 500 to run the course on our premises and training can be done in either Johannesburg, Durban or Cape Town. There is no fixed date the course will run, we work with your team to find suitable dates to run the course.

Course Curriculum

Introducing Ruby Programming Language

Ruby Language Overview Who is Using Ruby in Production Setting up the development environment Using Interactive Ruby Shell(irb) Hello World in Ruby Everything is an object in Ruby

Ruby Language Syntax

Creating and using variables Using and commenting code Number and Operators in Ruby Ruby core language constructs

Ruby Operators

Ruby Expressions Arithmetic Operators Shift or Append Operators Comparison Operators Booleans Operators Range Operators

Ruby Strings

String Literals String Methods Concatenating Strings Substituting Variables into String(String Interpolation) Reversing Strings Processing a String One Character at a Time Changing Case Strings Matching Strings with Regular Expressions Validating an Email Address Extracting Strings String Methods String Documentation String Exercises

Using Arrays

Creating Arrays Accessing Array Elements Adding\/Removing Items from an Array Iterating Over an Array Selecting Elements from an Array Reversing an Array Sorting Arrays Sguffling an Array Summing the Items of an Array More Array Methods Array Documentation

Ruby Hashes

Creating Hashes Creating a Hash with Default Values Adding Elements to a Hash Using Symobls and Hash Keys Sorting Hash Elements Accessing Hash Elements Iterating Over a Hash Altering Hashes Merging Hashes Searching a Hash More Hash Methods

Working with Numbers

Creating Numbers Numeric Alterations Numeric Comparisons Number Exercises

Ruby Date and Time

Date Classes Printing Today's Date Formatting Date Waiting a Certain Amount of Time Converting Bwtween Date and Times

Working with Conditionals

Creating Boolean values Expression tests Comparative operators

Ruby Constants

ARGF ARGV DATA ENV RUBY_* STDERR STDIN STDOUT TOPLEVEL_BINDING TRUE\/FALSE\/NIL

Ruby Loops and Iterators

Loop Method While Loop Until Loop While and Until Loops – Alternative Syntax Ruby Iterator Methods

Functions and Methods

Defining and Calling Methods Default Parameters Initialize Method Returning from a Method Returning Multiple Values Named and Variable Parameters Method Aliasing Un-defining a Method Class Methods versus Instance Methods

Classes and Modules

What are Classes Objects Class Properties Constructors Private Methods Protected Methods Checking Class or Module Membership Inheritance Modules Ruby Class Variables Ruby Class Variables Local Variables Instance Variables Global Variable

Errors and Exceptions

What are Errors Catching Errors and Exceptions Raising Exceptions Creating Your Own Exceptions Throwing and Catching Exceptions

Ruby Input and Output

File Input\/Output File Access Modes Directory Modification Checking if a File Exists Checking File Access Deleting a File Changing Permissions on a File Writing to a File Reading Contents of File Comparing Files Redirecting Standard Input and Output Network Input\/Output Higher Level Network Input\/Output Using Networking Libraries Building a Chat Command Line App with WebSockets Writing and Reading Input and Output from other Programs

Advanced Ruby Features with Blocks, Procs, and Lambdas

Creating and Invoking a Block Writing Methods that Accept a Block Yield Operator Using Ruby Procs Using Lambdas

Metaprogramming

Finding Object's Class and Super Class Listing Object's Methods

Modules and Namespaces

Multiple Inheritance with Mixins Extending Specific Objects with Modules Mixing in Class Methods Avoiding Naming Collision with Namespaces

Testing in Ruby

Types of Testing Unit Testing Integration Testing Automated Testing Behaviour Driven Development Test Driven Development Testing Introduction to Testing with RSpec

Internet Services

Getting Web Page Contents Performing a DNS Query Sending Email Interacting with Remote Servers using SSH Checking if a Server is Available with Ping

Using Libraries

Finding and Installing RubyGems Developing APIs and Web Apps with Sinatra Building Web Apps with Rails Gem Some Popular RubyGems

Packing and Distributing Software

Automatically Running Tasks with Rake Automatically Generating Documentation Creating a RubyGem Distributing RubyGem

Deploying Ruby Apps on Heroku

Installing the Heroku Command Line Client Installing git Generating an SSH Key Creating a Proc file Creating a new app Pushing to Heroku