method
rindex
v1_9_2_180 -
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- Class:
Array
rindex(p1)public
Returns the index of the last object in self
to obj. If a block is given instead of an
argument, returns first object for which block is true, starting from the last object. Returns nil if no match is found. See also Array#index.
If neither block nor argument is given, an enumerator is returned instead.
a = [ "a", "b", "b", "b", "c" ] a.rindex("b") #=> 3 a.rindex("z") #=> nil a.rindex{|x|x=="b"} #=> 3