1- What is the difference between
my @arr = ['a','b','c']; and my @arr = ('a','b','c');
?

The first line creates an array with one element: a reference to an anonymous array with 3 elements, 'a', 'b', and 'c'.

The second line creates an array with 3 elements, 'a', 'b', and 'c'.

2- In what doc am I supposed to find the answer at this question?

In addition to the ones other have mentioned, you should probably read perldoc perldsc, the data structure intro and perldoc perllol, the "arrays of arrays" tutorial which explains in great detail the structure you created in your first example. In the future, you may help yourself to answer questions like your second one by reading perldoc perltoc, the table of contents.

-sauoq
"My two cents aren't worth a dime.";

In reply to Re: Lost in doc by sauoq
in thread Lost in doc by pcouderc

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.