| Direct
| Using References
|
Circumfix Syntax[1]
| Postfix Syntax
|
scalar
| itself
| $s
| ${$sr}
| $sr->$*[3]
|
array
| itself
| @a
| @{$ar}
| $ar->@*[3]
|
element
| $a[0]
| ${$ar}[0]
| $ar->[0]
|
slice
| @a[0,1,2]
| @{$ar}[0,1,2]
| $ar->@[0,1,2][3]
|
index/value slice[2]
| %a[0,1,2]
| %{$ar}[0,1,2]
| $ar->%[0,1,2][3]
|
last index
| $#a
| $#{$ar}
| $ar->$#*[3]
|
hash
| itself
| %h
| %{$hr}
| $hr->%*[3]
|
element
| $h{'a'}
| ${$hr}{'a'}
| $hr->{'a'}
|
slice
| @h{'a','b','c'}
| @{$hr}{'a','b','c'}
| $hr->@{'a','b','c'}[3]
|
key/value slice[2]
| %h{'a','b','c'}
| %{$hr}{'a','b','c'}
| $hr->%{'a','b','c'}[3]
|
code
| call
| func(@args)
|
|
|
call (prototype ignored)
| &func(@args)
| &{$cr}(@args)
| $cr->(@args)
|
call (inherited @_)
| &func
| &{$cr}
| $cr->&*[3]
|
glob
| itself
| *glob
| *{$gr}
| $gr->**[3]
|
slot
| *glob{ARRAY}
| *{$gr}{ARRAY}
| $gr->*{ARRAY}[3]
|
- The curly brackets around $sr, $ar, $hr, $cr and $gr are optional when the contents of the curlies is simply a scalar.
- Requires Perl 5.20+.
- Requires Perl 5.24+. Available in Perl 5.20+ by adding both use feature qw( postderef ); and no warnings qw( experimental::postderef );, or by adding use experimental qw( postderef );.
See also:
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
|
|