perlmeditation
ikegami
<table border="1">
<tr>
<th rowspan="2" colspan="2">
<th rowspan="2">Direct
<th colspan="2">Using References
<tr>
<th>Syntax 1[href://#deref_syntax_star|*]
<th>Syntax 2
<tr>
<th>scalar
<th>itself
<td><c>$s</c>
<td><c>${$sr}</c>
<td>
<tr>
<th rowspan="4">array
<th>itself
<td><c>@a</c>
<td><c>@{$ar}</c>
<td>
<tr>
<th>element
<td><c>$a[0]</c>
<td><c>${$ar}[0]</c>
<td><c>$ar->[0]</c>
<tr>
<th>slice
<td><c>@a[0,1,2]</c>
<td><c>@{$ar}[0,1,2]</c>
<td>
<tr>
<th>last index
<td><c>$#a</c>
<td><c>$#{$ar}</c>
<td>
<tr>
<th rowspan="3">hash
<th>itself
<td><c>%h</c>
<td><c>%{$hr}</c>
<td>
<tr>
<th>element
<td><c>$h{'a'}</c>
<td><c>${$hr}{'a'}</c>
<td><c>$hr->{'a'}</c>
<tr>
<th>slice
<td><c>@h{'a','b','c'}</c>
<td><c>@{$hr}{'a','b','c'}</c>
<td>
<tr>
<th>code
<th>call
<td><c>func(@args)</c>
<td><c>&{$cr}(@args)</c>
<td><c>$cr->(@args)</c>
</table>
<p><a name="deref_syntax_star">*</a> – The curly brackets around <c>$sr</c>, <c>$ar</c>, <c>$hr</c> and <c>$cr</c> are optional.
<p>See also:
<ul>
<li>[id://69927|References Quick Reference]
<li>[doc://perlref]
<li>[doc://perlreftut]
<li>[doc://perldsc]
<li>[doc://perllol]
</ul>