Method Calls in Ruby

After watching Google Tech Talks – Monads and Gonads , I found some interest in functional programming concepts. Though I haven’t been able to understand the monad concept, just played around some language features of ruby functional programming, or meta-programming.

class String
  def get_binding

puts eval('"abc".length')
 # => "3"
puts eval("length", "abc".get_binding)
 # => "3"
puts "abc".send("length")
 # => "3"
puts "abc".method(:length).call
 # => "3"
puts "abc".instance_exec(){ self.length }
 # => "3"
puts String.instance_method(:length).bind("abc").call
 # => "3"

Posted on January 27, 2013, in Ruby. Bookmark the permalink. Leave a comment.

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