Re^2: **HomeWork** Trying to search an array and match it to a user input

One more quick question....hopefully.
I think I figured out the first part (trying to say LA is not a choice)
But I want anything else in the array to be a successful choice and then exit the loop. I have tried a few things, but can't seem to get it to exit.

my $myCities = "Baltimore:Chicago:Los Angeles:New York:San Diego:";
my @myCities = split(':', $myCities);

print "Please pick one of the following cities by entering any portion
+ of the beginning of the city name:(@myCities)\n";

while ( my $input_city = <STDIN> ){
foreach ($input_city) {
    if ($input_city  =~ m/^L/i ) {
    print "We no longer tour LA, please try again!\n";
}
if ( $input_city eq $myCities ){ ### here is where im lost##
   print "Found\n";
        }
    }
}
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Re^3: HomeWork Trying to search an array and match it to a user input by kyle (Abbot) on Apr 01, 2008 at 04:27 UTC
Your `foreach` loop will loop over only one element, `$input_city`. What you want to do is loop over everything in `@myCities`. The syntax looks like this: `foreach my $city ( @myCities ) { # $city is 'Baltimore' the fist time # $city is 'Chicago' the second time # etc. }` [download] You can see this in action with an example like this: `foreach my $city ( @myCities ) { print "\$city = '$city'\n"; }` [download] A simple print (or warn) like that can be very helpful when debugging. What you could do is create a variable to hold the city that's found. This variable should start with a known bogus value (such as the empty string). Then loop through your cities and see if any one of them matches the `$input_city`. If there is a match, set the found city variable to the matching city. After the loop, check if the bogus value is still there or if some city was found. If a city was found, check if it's Los Angeles, and handle it accordingly.	[reply] [d/l] [select]

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Re^3: **HomeWork** Trying to search an array and match it to a user input
by kyle (Abbot) on Apr 01, 2008 at 04:27 UTC

Your foreach loop will loop over only one element, $input_city. What you want to do is loop over everything in @myCities. The syntax looks like this:

foreach my $city ( @myCities ) {
    # $city is 'Baltimore' the fist time
    # $city is 'Chicago' the second time
    # etc.
}
[download]

You can see this in action with an example like this:

foreach my $city ( @myCities ) {
    print "\$city = '$city'\n";
}
[download]

A simple print (or warn) like that can be very helpful when debugging.

What you could do is create a variable to hold the city that's found. This variable should start with a known bogus value (such as the empty string). Then loop through your cities and see if any one of them matches the $input_city. If there is a match, set the found city variable to the matching city. After the loop, check if the bogus value is still there or if some city was found. If a city was found, check if it's Los Angeles, and handle it accordingly.

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