Method: Object#extend

Defined in:
lib/source/ruby.rb

#extend(*modules) ⇒ Object

call-seq:

obj.extend(module, ...) -> obj

Adds to obj the instance methods from each module given as a parameter. Internally, invokes extend_object and the callback extended on each given module in turn, passing obj as the argument.

module Mod
  def hello
    "Hello from Mod"
  end
end

class Klass
  def hello
    "Hello from Klass"
  end
end

k = Klass.new
k.hello         #=> "Hello from Klass"
k.extend(Mod)   #=> #<Klass:100>
k.hello         #=> "Hello from Mod"



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# File 'lib/source/ruby.rb', line 373

def extend(*modules)
  `for(var i=0,l=modules.length;i<l;++i){modules[i].m$extend_object(this);modules[i].m$extended(this);}`
  return self
end