I have the book Learning Perl in it there's a section called "Using Scalar-Producing Expressions in List Context" then it goes on to say "Going this direction is straightforward: if an expression doesn't normally have a list value, the scalar value is automatically promoted to make a one-element list:
@fred = 6 * 7; #gets the one-element list (42)
@barney = "hello" . '' . "world";
In the first example, the array @fred on the left hand side of the operator = makes it a list context, did i got it right? In the second example, "hello" . '' . "world; alone is a scalar expression? Is the array @barney on the left hand side of the operator making it into list context like the first example?
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.