Keys function is used to get all keys in a hash : keys « Hash « Perl

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Perl » Hash » keys

Keys function is used to get all keys in a hash

    





#!/usr/bin/perl -w



use strict;



my %where = (

     G     => "Dallas",

     L     => "Exeter",

     I     => "Reading",

     S     => "Oregon"

);



foreach (keys %where) {

    print "$_ lives in $where{$_}\n";

}

Related examples in the same category

1.	Obtain the list of hashKeys and display each key-value pair
2.	Obtain the list of keys and display each key-value pair
3.	The keys operator returns a list of all the key names within a hash.
4.	Hash (Associative Array) Functions: The keys function returns, in random order, the keys of a hash.
5.	Hash map creation

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