[EMAIL PROTECTED] (John W. Krahn) wrote in
news:[EMAIL PROTECTED]:
>
> If all the elements are unique then use a hash.
>
> if ( exists $hash{ 'my string' } ) {
> # do something
> }
>
>
> The most efficient way to determine if an element exists in an array
> is to use a for loop and exit early:
>
> my $found = 0;
> for ( @array ) {
> if ( $_ eq 'my string' ) {
> $found = 1;
> last;
> }
> }
>
>
> If you need to determine the number of matches you can use grep:
>
> my $count = grep $_ eq 'my string', @array;
>
>
>
> John
OK, to be more specific, I'm using Net::Telnet:Cisco. When logged onto
a device I'm using the "show version" command, and storing the output in
an array. Each element of the array will therefore contain lots of
rubbish. I just want to match certain keyword(s) to determine device
type. I guess a for loop is the closest I'm going to get. I just
thought there would be a specific function for this.
So then I wonder - which is more efficient. My earlier "join" example,
or a for loop?
Thanks for all the input
Darren
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