Hi, Below is the output of hash. I get multipe values for my keys and values appeared more than one, I need to have only unique values for a key. 

$HASH1 = {
'Alabama' => ['Andalusia', 'Anniston', 'Clanton', 'Eufaula', 'Auburn',
+ 'Bessemer', 'Eufaula', 'Auburn', 'Bessemer' ],
'California' => ['Barstow','Barstow'],
'Georgia' => ['Darien'],
'New York' => ['Amsterdam','Coney Island','Coney Island','Beacon','Bec
+on']

};

[download]

for e.g. for key "California" I get values 'Barstow','Barstow' (same value two times), I need to retain the only one value 'Barstow'

what is a good way to check the existence for a key that has multiple values? and keep the value unique so my output looks 

$HASH1 = {
'Alabama' => ['Andalusia', 'Anniston', 'Clanton', 'Eufaula', 'Auburn',
+ 'Bessemer'],
'California' => ['Barstow'],
'Georgia' => ['Darien'],
'New York' => ['Amsterdam','Coney Island','Becon']

};

[download]

Thanks

In reply to Hash Multiple values for a key-Filtering unique values for a key in hash by rahulme81

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