Created
September 23, 2008 03:37
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| def x(*a); end; method(:x).arity | |
| # => -1 | |
| lambda {}.arity | |
| # => -1 | |
| def x; end; method(:x).arity | |
| # => 0 | |
| lambda {|| }.arity | |
| # => 0 | |
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