Array help

[ejaggers]

Can you find the element number of an array using foreach?
for instance if $array[50] = 'HELP';

foreach ( sort @array ) {
print 'element number' if ( /HELP/ );
}
I want to print the 50.

 

[rharsh]

You'll have to iterate through all the elements in the array. This should get you started.

my @array;
$array[50] = 'HELP';

my $index_number;
foreach my $i (0..$#array) {
	if (($array[$i] || "") =~ m/HELP/) {
		$index_number = $i;
		last;
	}
}

if (defined $index_number) {
	print "String found at index: $index_number\n";
} else {
	print "String not found.\n";
}

You may want to consider anchors on your search pattern otherwise any element that had HELP in it would be just as good as another.

 

[KevinADC]

I'm curious, what is the (|| "") part for?

if (($array[$i] || "")

------------------------------------------
- Kevin, perl coder unexceptional!

 

[KevinADC]

Never mind, I read the explanation in the other thread.

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- Kevin, perl coder unexceptional!