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.