table of contents
| List::Objects::WithUtils::Role::Array::WithJunctions(3pm) | User Contributed Perl Documentation | List::Objects::WithUtils::Role::Array::WithJunctions(3pm) |
NAME¶
List::Objects::WithUtils::Role::Array::WithJunctions - Add junctionsSYNOPSIS¶
## Via List::Objects::WithUtils::Array ->
use List::Objects::WithUtils 'array';
my $array = array(qw/ a b c /);
if ( $array->any_items eq 'b' ) {
...
}
if ( $array->all_items eq 'a' ) {
...
}
if ( $array->any_items == qr/^b/ ) {
...
}
## As a Role ->
use Role::Tiny::With;
with 'List::Objects::WithUtils::Role::Array',
'List::Objects::WithUtils::Role::Array::WithJunctions';
DESCRIPTION¶
These methods supply overloaded List::Objects::WithUtils::Array::Junction objects that can be compared with values using normal Perl comparison operators.Regular expressions can be matched by providing a "qr//" regular expression object to the "==" or "!=" operators.
There is no support for the "~~" experimental smart-match operator.
The junction objects returned are subclasses of List::Objects::WithUtils::Array, allowing manipulation of junctions (of varying degrees of sanity) -- a simple case might be generating a new junction out of an old junction:
my $list = array(3, 4, 5);
if ( (my $anyof = $list->any_items) > 2 ) {
my $incr = $anyof->map(sub { $_[0] + 1 })->all_items;
if ( $incr > 6 ) {
# ...
}
# Drop junction magic again:
my $plain = array( $incr->all );
}
any_items¶
Returns the overloaded any object for the current array; a comparison is true if any items in the array satisfy the condition.all_items¶
Returns the overloaded all object for the current array; a comparison is true only if all items in the array satisfy the condition.AUTHOR¶
Jon Portnoy <avenj@cobaltirc.org>| 2019-01-18 | perl v5.28.1 |