A proc sample for Ruby

<< Object | Index | RemainderOperator >>

## Proc ##
a = Proc.new {|x| x*2}

## normal method ##
def aaa(x)
 x*2
end

p a.call(3)
p aaa(3)

Another Proc sample

## Proc Style ##
a = Proc.new {|odba_item| [odba_item]}
b = a.call('123')
p b

## Method Style ##
def aaa(odba_item)
 [odba_item]
end

b = aaa('123')
p b

also see

 http://www.ruby-doc.org/core/classes/Proc.html#M000547

Illustration from the Well Grounded Rubyist: