In Perl6 the Smart Match Operator is ~~ and its inversed form is !~~.

Description Edit

The binary operator ~~ matchs a regular expression object to a string. The !~~ operator is !($str ~~ $regex).

Examples Edit

Simple Demonstration Edit

if 'part1' ~~ /<digit>/ {
    say "Hello World";
}

Hello World

Searching inside an arrayEdit

my @list = 1,2,3; 
say (1 ~~ any(@list)) ?? "yes" !! "nope" ;
say (6 ~~ any(@list)) ?? "yes" !! "nope" ;

yes
nope

Searching defined hash keysEdit

my %pets = (cats=>1 ,dogs=>2, dodos=>0); 
say ('pigs' ~~ any(keys %pets)) ?? "yes" !! "nope" ;
say ('cats' ~~ any(keys %pets)) ?? "yes" !! "nope" ;

nope
yes

See also Edit

• Assertion
• Ternary operator
• Junction