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Background
Conditional statements, loops, and functions you would expect. Exceptions, iterators and methods may be new to you. And you'll need to know how to write conditions too.
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Ruby module R104
Control Structures
Exercises, examples and other material relating to training module R104. This topic is presented on public courses Learning to program in Ruby, Ruby Programming

Ruby supports the following conditionals: nbsp; nbsp;if - perform a block if true nbsp;unless - perform a block if false nbsp;case - perform options ...
http://www.wellho.net/solutions/ruby-con ... -ruby.html  [longer article]
Ruby Programming - A Modern, Object Oriented, Portable Scripting language. This quickly moving course covers the fundamentals of the Ruby language for ...
http://www.wellho.net/course/rpfull.html  [course]
When you're in a loop there are occasions you want to say get me our of this loop NOW, or "I'm done with the current iteration. And those are the 'classic' ...
http://www.wellho.net/mouth/962_Brea ... uages.html  [short article]
Learning to Program in Ruby - A Modern, Object Oriented, Portable Scripting language. Ruby is very much an object oriented language, and we concentrate ...
http://www.wellho.net/course/rlfull.html  [course]
The == comparison checks whether two values are equal eql? checks if two values are equal and of the same type equal? checks if two things are one and ...
http://www.wellho.net/mouth/985_Equa ... qual-.html  [short article]
When writing a program, you'll often want to repeat a block of code, counting up through a table or performing a block of code with an input value (loop ...
http://www.wellho.net/mouth/1220_for ... -etc-.html  [short article]
"Isn't there one standard way to say NOT?" asked one of my delegates on today's course - and it's an excellent question. But the answer to a question ...
http://www.wellho.net/mouth/1696_Say ... -Lua-.html  [short article]

Conditional statements, loops, and functions you would expect. Exceptions, iterators and methods may be new to you. And you'll need to know how to write conditions too.

This topic is presented on public courses Learning to program in Ruby, Ruby Programming

Examples from our training material
condi.rb   Example of Ruby conditionals
ctors.rb   Comparators - what is true?
ddd.rb   Iterators in Ruby
dm.rb   Defining and using a method
dm2.rb   Method, parameter, optional parameter
dm3.rb   Dynamic redefinition of a method
lazyops.rb   Lazy operators
llen   Methods and default parameter
llen2   calculating default parameters
llen3   Default a parameter to nil
loop.rb   Loop in ruby - run until it breaks
loopy.rb   Loop structures in Ruby
mi   redefine a method in Ruby
mwpar   In Ruby you can redefine a function ...
scram.rb   Break redo next and retry
sid   Loop and conditional - exercise
u1   How many teams needed?
yrb   yield (co-routines / generator)
Background information
Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from http://www.training-notes.co.uk.
Topics covered in this module
Blocks and the if statement.
Writing conditions.
Comparative, boolean and range operators.
Conditionals - if, unless, case, etc.
Loops - while, for in, until, etc.
break, next, retry and redo.
defined? and ternary operators.
Complete learning
If you are looking for a complete course and not just a information on a single subject, visit our Listing and schedule page.

Well House Consultants specialise in training courses in Python, Perl, PHP, and MySQL. We run Private Courses throughout the UK (and beyond for longer courses), and Public Courses at our training centre in Melksham, Wiltshire, England. It's surprisingly cost effective to come on our public courses - even if you live in a different country or continent to us.

We have a technical library of over 700 books on the subjects on which we teach. These books are available for reference at our training centre. Also available is the Opentalk Forum for discussion of technical questions.


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