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: / proc / self / root / opt / alt / ruby18 / share / ri / 1.8 / system / Proc /

Filename : arity-i.yaml

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--- !ruby/object:RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Returns the number of arguments that would not be ignored. If the block is declared to take no arguments, returns 0. If the block is known to take exactly n arguments, returns n. If the block has optional arguments, return -n-1, where n is the number of mandatory arguments. A <tt>proc</tt> with no argument declarations is the same a block declaring <tt>||</tt> as its arguments.
- !ruby/struct:SM::Flow::VERB 
  body: "   Proc.new {}.arity          #=&gt;  0\n   Proc.new {||}.arity        #=&gt;  0\n   Proc.new {|a|}.arity       #=&gt;  1\n   Proc.new {|a,b|}.arity     #=&gt;  2\n   Proc.new {|a,b,c|}.arity   #=&gt;  3\n   Proc.new {|*a|}.arity      #=&gt; -1\n   Proc.new {|a,*b|}.arity    #=&gt; -2\n"
full_name: Proc#arity
is_singleton: false
name: arity
params: |
  prc.arity -> fixnum

visibility: public