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Old 18th November 2008
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ephemera ephemera is offline
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Originally Posted by stukov View Post
Now, is a HASH an array itself?

hashes can not have duplicate keys.

also, the keys in a hash are not ordered.

For example,
%hash1 = @array1; @array2 = %hash1 ; %hash2 = @array2;
array2 will likely have a different ordering from array1, hence different. but, hash1 will be the same as hash2.

arrays have a small performance advantage. and neither is particularly space efficient in perl.

Last edited by ephemera; 18th November 2008 at 07:13 PM.
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