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Type:
Class

Proc objects are blocks of code that have been bound to a set of local variables. Once bound, the code may be called in different contexts and still access those variables.

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def gen_times(factor)
  return Proc.new {|n| n*factor }
end
 
times3 = gen_times(3)
times5 = gen_times(5)
 
times3.call(12)               #=> 36
times5.call(5)                #=> 25
times3.call(times5.call(4))   #=> 60
arity
  • References/Ruby on Rails/Ruby/Classes/Proc

prc.arity â fixnum Instance Public methods Returns the number of arguments

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===
  • References/Ruby on Rails/Ruby/Classes/Proc

proc === obj â result_of_proc Instance Public methods Invokes the block with

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hash
  • References/Ruby on Rails/Ruby/Classes/Proc

prc.hash â integer Instance Public methods Returns a hash value corresponding

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inspect
  • References/Ruby on Rails/Ruby/Classes/Proc

inspect() Instance Public methods Alias for:

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yield
  • References/Ruby on Rails/Ruby/Classes/Proc

prc.call(params,...) â objprc[params,...] â objprc.(params,...) â obj Instance Public

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binding
  • References/Ruby on Rails/Ruby/Classes/Proc

prc.binding â binding Instance Public methods Returns the binding associated

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lambda?
  • References/Ruby on Rails/Ruby/Classes/Proc

prc.lambda? â true or false Instance Public methods Returns true

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to_proc
  • References/Ruby on Rails/Ruby/Classes/Proc

prc.to_proc â prc Instance Public methods Part of the protocol for converting

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curry
  • References/Ruby on Rails/Ruby/Classes/Proc

prc.curry â a_procprc.curry(arity) â a_proc Instance Public methods Returns

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[]
  • References/Ruby on Rails/Ruby/Classes/Proc

prc[params,...] â obj Instance Public methods Invokes the block, setting

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