Documentation for routine trim-trailing assembled from the following types:

class Cool

From Cool

(Cool) routine trim-trailing

Defined as:

sub trim-trailing(Str(Cool))
method trim-trailing()

Coerces the invocant (or in sub form, its argument) to Str, and returns the string with trailing whitespace stripped.

my $stripped = '  abc '.trim-trailing;
say "<$stripped>";          # OUTPUT: «<  abc>␤»

class Str

From Str

(Str) method trim-trailing

method trim-trailing(Str:D: --> Str)

Removes the whitespace characters from the end of a string. See also trim.