Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

Dear Monks,

1. '$first' and '$second' are 2 different variables. Why is
'$_[0] . $_1' used instead of '$_[0] . $_[0]' to combine
two strings? Doesn't the first '$_' for '$first' and the
second '$_' for '$second'?

2. In this code " . $_[0] . $_1 . "\n"; I understand why there
are two dots. But I don't understand why the third dot is

Thank you,
#!/usr/bin/perl #prompt user for two strings. Remove newline and #store into variables print "\nEnter the first string: "; chomp($first = <STDIN>); print "\nEnter the second string: "; chomp($second = <STDIN>); sub combine{ print "\nThe combined strings are: " . $_[0] . $_[1] . "\n"; } &combine($first,$second);

Enter the first string: I go
Enter the second string: to school.
The combined strings are: I go to school.

In reply to subroutine function by truthseeker66

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, 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, 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.
  • Log In?

    What's my password?
    Create A New User
    and all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others browsing the Monastery: (2)
    As of 2018-05-24 05:17 GMT
    Find Nodes?
      Voting Booth?