Hi Monkees,

Is there anyway to assign a 2-value list as a key/value pair to a hash without clobbering the current keys/values in hash, and without excessive code? - e.g.

# Works, but needs double-split
$hash{(split /X/, "fooXbar")[0]} = (split /X/, "fooXbar")[1];
$hash{(split /X/, "bishXbash")[0]} = (split /X/, "bishXbash")[1];
foreach(keys %hash){
  print "1: $_ = $hash{$_}\n";
}

# Works, but needs redundent array
undef %hash;
@array = (split /X/, "fooXbar");
$hash{$array[0]} = $array[1];
@array = (split /X/, "bishXbash");
$hash{$array[0]} = $array[1];
foreach(keys %hash){
  print "2: $_ = $hash{$_}\n";
}

# Tidy, but clobbers {foo} = 'bar'
undef %hash;
%hash = (split /X/, "fooXbar");
%hash = (split /X/, "bishXbash");
foreach(keys %hash){
  print "3: $_ = $hash{$_}\n";
}

[download]

So, the first two approaches work, but IMHO look ugly. The third approach looks concise, but clobbers the hash each time. Hope that makes sense...

Tom Melly, tom@tomandlu.co.uk

In reply to Assign (key, value) to a hash w/o clobbering hash by Melly

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