Perl 6
WITCH equal: Revision 1

Mnemonics

"equal", "evaluate", "iterate"

Used alone

= assigns values as in common parlance
= immediately before an Array value creates an iterator for the array
= after many infix operators creates a mutant assignment form of that operator

Operators containing this character

:= aliases an identifier via runtime binding
::= aliases an identifier via compile time binding
=:= container identity comparitor
!= is short for !==
== compares for value equivalence
=== compares containers or values with dwimmery
>= and <= are also comparisons. Note this means there is no assignment mutation.
=> "fat arrow" pair constructor
= => = =>> <<= = <= = are feed operators

When used inside regexes

Special Variables

As an adverb

Other Uses

Hyper operator and meta operator restrictions

Old, deprecated, or other language uses

=~ in Perl5 used to be for matching. That is ~~ in Perl6. =~ is always a syntax error in Perl6.


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