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 infix =:= 

multi infix:<=:=>(Mu \a, Mu \b)

Container identity operator. Returns True if both arguments are bound to the same container. If it returns True, it generally means that modifying one will also modify the other.

my ($a, $b) = (1, 3);
say $a =:= $b;      # OUTPUT: «False␤»
$b = 2;
say $a;             # OUTPUT: «1␤»
$b := $a;
say $a =:= $b;      # OUTPUT: «True␤»
$a = 5;
say $b;             # OUTPUT: «5␤»

The single argument version, called as a routine, will always return True:

say infix:<=:=>(42);    # OUTPUT: «True␤»
say infix:<=:=>(False); # OUTPUT: «True␤»