Hi,
I am getting a warning while executing the following code in case where I am not using any variable for the ternary operator. Why I am getting warning like "Useless use of a constant in void context at a.pl" for not using the variable ? How can I write the code without using the variable and not getting the warning as well.
my $hash = {};
my $i = "one";
#Below line giving no warning. But I DO NOT want this
#my $val = ($i eq 'one') ? $hash->{'name'} = "hello"."world" : 'nothin
+g';
# Below line giving warning. But I want this
($i eq 'one') ? $hash->{'name'} = "hello"."world" : 'nothing';
-
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.
|