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perldoc -f sort<br />
perldoc -q sort
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<div class="content wysiwyg-content">
Hi,<br />
<br />
I am not familiar with perl, and has came across this line for a sort<br />
<br />
foreach $key (sort {$info{$b} &lt;=&gt; $info{$a}}keys(%info))<br />
{<br />
<br />
I was told that this is used to sort a hash list by using other fields that the key, how is it so?<br />
<br />
Thanks in Advance.
</div>
</div>


Hi,

I am not familiar with perl, and has came across this line for a sort

foreach $key (sort {$info{$b} <=> $info{$a}}keys(%info))
{

I was told that this is used to sort a hash list by using other fields that the key, how is it so?

Thanks in Advance.

Puzzle in sort

Perl is a high-level, general-purpose, interpreted, dynamic programming languages with over 25 years of development. Perl 5 runs on over 100 platforms from portables to mainframes and is suitable for both rapid prototyping and large-scale development projects.  Perl gained widespread popularity as a Common Gateway Interface (CGI) scripting language, in part due to its regular expression and string parsing abilities. In addition to CGI, Perl is used for graphics programming, system administration, network programming, finance, bioinformatics, and other applications.