bliki tagged by: ruby
When you learn about objects, you usually learn that they can capture two kinds of data: instance and class. Instance variables are the most common case, the data varies with each instance of the object. Class variables, often referred to as static variables, are shared across all instances of a class. Every instance points to same value and any changes are seen by all. Class variables are much less common than instance variables, especially mutable class variables.
9 January 2007
Perhaps I was being naive but I never expected quite the chatter that my post on HumaneInterface opened up. Sadly most of it ended up being arguments about the relative merits of Ruby's Array and Java's List rather than the underlying points I was trying to make, but despite that I think some nice conversational tributaries appeared.
One of these conversational threads brought out that there are other reasons for the differences between Array and List than the humane/minimal philosophies. One of these reasons has to do with the way similar functionality plays different roles in the two languages.
21 December 2005
I've long been loath to write any contributions on the debate between static and dynamic typing in programming languages. This is one of those emotive topics where people seem driven to debate rather than listen. But since I've been asked a few times about it, I will contribute my personal experiences. I'm not trying to convince anyone of anything, but I hope someone finds some food for thought in them.
14 March 2005
If you're reading this I assume you're aware of the fact that there's been a huge amount of fuss about the Ruby programming language, and in particular the Rails framework for developing web applications. Some see it as the future of programming, others as a dangerous diversion.
10 May 2006
If I want to teach people object-orientation, which language should I use?
23 May 2003
One of Ruby's most popular features is its support for metaprogramming, that is features that act like they change the language itself - introducing things like new keywords.
26 October 2006
As any regular reader of mine should know, I've been a keen rubyist for several years. I like the ruby language for its rich yet uncluttered syntax and the well designed frameworks that come with it. It's become my regular workhorse language for personal projects, including most of this web site.
25 September 2005
A couple of weeks ago there was a Ruby conference in San Francisco called GoGaRuCo (Golden Gate Ruby Conference). This conference has grabbed attention due to a talk at which the presenter illustrated a discussion of CouchDB by using sexually suggestive pictures of women. Unsurprisingly the result has been a fair bit of heated, and occasionally offensive, debate.
30 April 2009
When I first started programming in Smalltalk one of the things I liked right from the start were the collection classes. They allowed you to simply do a bunch of common and powerful operations on collection classes. When Java appeared, I missed these kinds of methods - the Java (and C#) collections were very limited compared to Smalltalk. The main reason for this limitation is that Java doesn't have any convenient implementation for a Closure. The powerful Smalltalk methods for collections all relied on closures.
1 August 2005
Recently some of our developers ran into the accusation that with a dynamic language like ruby you use so many dynamic type checks that you end up effectively writing your own type system. So they thought, since we've written a lot of real ruby code - how often do we make dynamic type checks? Michael Schubert gathered up the data.
2 June 2009
In the newly formed Rails community, the word 'enterprise' is becoming a dirty word. For many people the Rails framework, with its aggressive simplicity, is the antithesis of over-complex 'enterprisey' frameworks.
11 July 2006
Currently there's quite a debate raging over the relative merits of Groovy and JRuby as scripting languages running on the Java virtual machine. Curious minds want to know - which of these languages will win this upcoming language war? People want to know which language to pick for a project, or which language to commit to learn.
28 November 2007
I don't go to as many conferences as I used to, but the advantage of that is that I have time to go to ones that take my fancy. I've long had a particular fondness for the Ruby community, so I turned up as an attendee at this year's RailsConf.
22 May 2007
At RailsConf2007 there was a lot of excitement over JRuby. This small team had taken a moribund project and turned it into what looks like a first class implementation of the Ruby platform on the JVM. They got a lot of cheers and deserved them all.
So with JRuby pretty much here, the spotlight moves onto the other common managed code runtime - .NET. Microsoft's intentions for Ruby are currently much less clear. They have announced Ruby as a language for scripting Silverlight - but that still leaves a lot of open questions. Is this a full implementation of the ruby language, or is some form of Ruby++ - an enhanced subset of Ruby?
30 May 2007
In my recent post on EvaluatingRuby I mentioned that a colleague had put together a web app with some fancy numerical graphs. Someone emailed to ask how he did that. I added my short answer, ploticus, to the original bliki entry, but that led to the question of how he interfaced ruby with ploticus?
19 June 2006