display one time only

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Good Morning all
How can run under a loop for checking into array, then out put only display one time only?

foreach my $j(1,2){
if (!exists(${"Name_$j"})) {
    print <<END_OF_HTML;
<font color="#000000" size="-1" face=arial,sans-serif>$showname</font>
+<br>
END_OF_HTML
  }
}
[download]

Comment on display one time only Download Code

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Re: display one time only by rje (Deacon) on Jan 10, 2002 at 21:19 UTC
If I understand you correctly, then I think all you need to do is use the keyword `last`: `foreach my $j (1,2) { if ( !exists( ${"Name_$j"} )) { # # print your stuff here # last; } }` [download] "last" tells perl to immediately exit the loop. rje	[reply] [d/l] [select]
Re: display one time only by blakem (Monsignor) on Jan 11, 2002 at 00:24 UTC
The answer you're looking for has already been given. However your conditional looks incorrect to me... `!exists(${"Name_$j"})` [download] You should read the documentation for exists which explains what `exists` is expecting better than I can... Perhaps you meant: `!exists($Name{$j})` [download] or even: `!exists($hash{"Name_$j"})` [download] -Blake	[reply] [d/l] [select]