Greetings fellow monks, this poor novice has been struggling away at a simple problem for quite some time now. I am trying to test to see if the value of a variable is one of two values. If it is neither print a message indicating there was an error.
#!/usr/bin/perl -w
use strict;
my $var = "yes";
if ($var eq ("yes" or "no")) {
print "You choose $var\n";
}else{
print "you chose something other then yes or no\n"
}
Now if I change $var to something like "what", I get "you chose something other then yes or no". If I change $var to "yes", I get "you choose yes". If I change $var to "no", I would expect to get "you choose no". However I am getting "You chose something other then yes or no". Am I missing something here?
Thanks for the help in advance!
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|