I love that feature of Perl, and to be explicitly clear to those that are unfamiliar with it, Perl does not allow unbraced single line if&#x27;s in the normal sense (pre-conditional ifs), and does not allow braced post-conditional ifs.  For example, these are valid:<p><pre><code>    if ( $foo ) {
      bar();
      baa();
    }
    quux() if $foo;
</code></pre>
And these are <i>not</i>:<p><pre><code>    if ( $foo ) bar();
    { bar(); baz(); } if $foo;</code></pre>