any?() public

Passes each element of the collection to the given block. The method returns true if the block ever returns a value other than false or nil. If the block is not given, Ruby adds an implicit block of {|obj| obj} (that is any? will return true if at least one of the collection members is not false or nil.

%w{ ant bear cat}.any? {|word| word.length >= 3}   #=> true
%w{ ant bear cat}.any? {|word| word.length >= 4}   #=> true
[ nil, true, 99 ].any?                             #=> true
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August 15, 2008
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Using any? on Empty Arrays and Hashes

When applied to an empty array or hash, with or without a block, any? always returns false. That’s because with an empty collection, there are no values to process and return a true value.