Created
August 25, 2011 20:27
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| >> foo = 1 | |
| >> x = lambda { if foo == 0; return foo; else; foo = foo - 1; x.call; end } | |
| => #<Proc:0x0000000106b9bd40@(irb):16> | |
| >> x.call | |
| => 0 |
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