RailsConf Europe 08: David A. Black (Ruby Central, Inc.), Ru
summary
Provides an EC2 image with 1.8.6 / 1.8.7 / 1.9.0 (15 user accounts, instructions at 2008.rubyconf.org/ec2.txt) so attendees can try versions live; catalogs concrete 1.9 features like the stabby lambda, BasicObject, enumerators and fibers, and warns that many C-extension gems need updates. Notes real breakage: map-without-block returns an Enumerator in 1.9 (and 1.8.7 backports) which breaks code expecting arrays. Reports JRuby compliance (33k ruby-spec assertions), active 1.9 work, and large memory wins running Rails 2.2 on JRuby (heap ~233MB → ~55MB).
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chapters (11)
- 0:00Start
- 0:35What Is a Symposium
- 7:47Logging on to the Ec2 Instance
- 33:17Block Parameter Syntax
- 34:32Anonymous Functions
- 37:56Define Method
- 40:54Basic Object
- 41:07Basic Object in Ruby
- 41:44Xml Builder
- 51:41The Ruby Spec Project
- 57:21What Is the Relationship between Jruby and the Ruby Spec Project a
