Dear monks

I want a subset of the keys I have in an hash. I tried the following: 
splice( keys(%mh), 0, 100 ) ;

[download]
Which didn't work, it returned: 
Type of arg 1 to splice must be array (not keys) at myprog.pl line 36,
+ near "100)"
Compilation failed in require at ./test.pl line 8.
BEGIN failed--compilation aborted at ./test.pl line 8.

[download]
I can fix this like 
my @k = keys(%mh) ;
splice( @k ...) ;

[download]
but I guess the one-liner should work too ?!
Any suggestions ?

cheers
LuCa

Update: thnx JavaFan, thats it, although I have doubts now about the order of keys :)

In reply to Type of arg 1 to splice must be array (not keys) by jeanluca

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.