Created
November 2, 2011 18:32
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in?
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| class Object | |
| def in? *others | |
| [others].flatten.include? self | |
| end | |
| end |
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irb(main):037:0> 1.in? [5, 1, 54]
true
irb(main):038:0> self.in? [1,2,3]
false
irb(main):039:0> self.in? [1,2,3,self]
true
irb(main):040:0> "in".in? "in", "not"
true
irb(main):041:0> "in".in? "nin", "not"
false