Perl 6
witch_dash: Revision 1
Mnemonics
"negative", "number", "subtract"
-- usage is very intuitive
Used alone
- along with + coerces to type Num
- As an infix operator: subtracts numbers
Operators containing this character
- - pre and post decrement as in common parlance (which means use it like you would expect)
When used inside regexes
- at start of a character class changes the sense
- = the post-assignment mutant form of -
Other Uses
- has wildcard uses in version literals
- before a flag on the commandline results in normal values in a MAIN subroutine
- - > used to specify return type in a Signature
- > introduces a pointy block
[*-1] finds the last entry of an array which is not special sugar but worth noting.
+ is a border intersection in POD
