Hi,

when a hash is defined with a reference , it's value is obtained by dereferencing using ->. Here keys of hash is referencing to a hash. so while dereferencing, why is it allowing $hash->{a}{1} as it should allow only $hash->{a}->{1} $hash={a=>{1=>2}};

print "ref($hash->{a})"; #says its an hash reference print "$hash->{a}->{1}" ;#returns 2 as expected print "$hash->{a}{1}"; #also returns 2 ,my question is how without der +eferencing the key of $hash->{a} its value is getting displayed?

2019-03-07 Athanasius added paragraph and code tags


In reply to Query on References by Arunkumar_141

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.