ary.rindex(obj) â int or nil
ary.rindex { |item| block } â int or nil
ary.rindex â Enumerator
ary.rindex { |item| block } â int or nil
ary.rindex â Enumerator
Instance Public methods
Returns the index of the last object in self
== to obj.
If a block is given instead of an argument, returns the index of
the first object for which the block returns true, starting
from the last object.
Returns nil if no match is found.
See also #index.
If neither block nor argument is given, an Enumerator is returned instead.
1 2 3 4 | a = [ "a", "b", "b", "b", "c" ]a.rindex("b") #=> 3a.rindex("z") #=> nila.rindex { |x| x == "b" } #=> 3 |
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