myronmarston · May 27, 2010 16:04
diff --git a/proc_vs_lambda.rb b/proc_vs_lambda.rb
 >> p = Proc.new { |a, b| a }
 => #<Proc:0x00000001036962f8@(irb):2>
 >> p.call(5)
 => 5
 >> l = lambda { |a, b| a }
 => #<Proc:0x000000010368e8c8@(irb):4>
 >> l.call(5)
 ArgumentError: wrong number of arguments (1 for 2)
 	from (irb):4
 	from (irb):5:in `call'
 	from (irb):5
	>> p = Proc.new { \|a, b\| a }
	=> #<Proc:0x00000001036962f8@(irb):2>
	>> p.call(5)
	=> 5
	>> l = lambda { \|a, b\| a }
	=> #<Proc:0x000000010368e8c8@(irb):4>
	>> l.call(5)
	ArgumentError: wrong number of arguments (1 for 2)
	from (irb):4
	from (irb):5:in `call'
	from (irb):5