This is an automatically generated page and cannot be edited directly. Text in Composite pages, (URLs starting with 'routine' or 'syntax') can be edited by clicking on the link labeled 'in context', and editing the text there.

Exit this popup by pressing <Escape>, or clicking on X or on the background.

[ ]
Combined from primary sources listed below.

In Operators§

See primary documentation in context for circumfix [ ]

The Array constructor returns an itemized Array that does not flatten in list context. Check this:

say .raku for [3,2,[1,0]]; # OUTPUT: «3␤2␤$[1, 0]␤»

This array is itemized, in the sense that every element constitutes an item, as shown by the $ preceding the last element of the array, the (list) item contextualizer.

In Operators§

See primary documentation in context for postcircumfix [ ] 

sub postcircumfix:<[ ]>(@container, **@index,
                        :$k, :$v, :$kv, :$p, :$exists, :$delete)

Universal interface for positional access to zero or more elements of @container, a.k.a. "array indexing operator".

my @alphabet = 'a' .. 'z';
say @alphabet[0];                   # OUTPUT: «a␤» 
say @alphabet[1];                   # OUTPUT: «b␤» 
say @alphabet[*-1];                 # OUTPUT: «z␤» 
say @alphabet[100]:exists;          # OUTPUT: «False␤» 
say @alphabet[17, 0, 10, 20].join;  # OUTPUT: «raku␤» 
say @alphabet[23 .. *].raku;        # OUTPUT: «("x", "y", "z")␤» 
 
@alphabet[1, 2] = "B", "C";
say @alphabet[0..3].raku;           # OUTPUT: «("a", "B", "C", "d")␤»

See Subscripts, for a more detailed explanation of this operator's behavior and for how to implement support for it in custom types.