190 results found for ruby &:
ruby on rails block sytax using &: ruby on rails block sytax using &: So say I have a Question model and an Answer model and Question has_many
http://stackoverflow.com/question...85/ruby-on-rails-block-sytax-using
Assume that Game is an active record model, what does the & mean in the following code? Games.group_by(&:genre) Tags: ruby-on-rails ruby See this: What do
http://stackoverflow.com/question...s-mean-in-this-piece-of-rails-code
What do you call the &: operator in Ruby? What do you call the &: operator in Ruby? Possible Duplicates: Ruby/Ruby on Rails ampersand colon shortcut
http://stackoverflow.com/question...t-do-you-call-the-operator-in-ruby
What is this &:last Ruby construct called? What is this &:last Ruby construct called? What are things like survey.map(&:questions).flatten.compact
http://stackoverflow.com/question...is-this-last-ruby-construct-called
using &: . Tags: ruby Symbol#to_proc takes the first argument to be the receiver and passes on any extra arguments it receives to the method, but in this
http://stackoverflow.com/question...n-arrays-using-rubys-symbolto-proc
results.concat(Question.find_all_by_survey_section_id(section.id)) end results end I feel like I could use the &: ( Symbol#to_proc ) and returning methods in there somehow. Tags: ruby-on-rails ruby arrays Assuming
http://stackoverflow.com/question...array-from-multiple-arrays-in-ruby
missing around the array Thanks and good morning! Alex Tags: ruby-on-rails ruby arrays The entire conversion you are making is unnecessary. You can pass the
http://stackoverflow.com/question...ils-converting-params-to-int-array
That's the &: in the select(&:odd?) and the inject(&:+) above. Tags: c# ruby lambda extension-methods The following is direct, literal (as much as
http://stackoverflow.com/question...perators-as-method-parameters-in-c
inside Rails, is to use the Symbol#to_block method like JRL mentioned: p test_method &:upcase So just add the &: before the method name. As ennuikiller
http://stackoverflow.com/question...ant-i-write-p-test-method-i-upcase
Tags: ruby-on-rails ruby group-by grouping Assuming recorded_on is a date, and not a DateTime: @records = Record.all.group_by(&:recorded_on) If it is a
http://stackoverflow.com/question...groups-of-related-database-records