This is an automatically generated page and cannot be edited directly. Text in Composite pages, (URLs starting with 'routine' or 'syntax') can be edited by clicking on the link labeled 'in context', and editing the text there.

Exit this popup by pressing <Escape>, or clicking on X or on the background.

in
Combined from primary sources listed below.

In Promise§

See primary documentation in context for method in 

method in(Promise:U: $seconds, :$scheduler = $*SCHEDULER --> Promise:D)

Creates a new Promise that will be kept in $seconds seconds, or later.

my $proc = Proc::Async.new('raku', '-e', 'sleep 10; warn "end"');
 
my $result = await Promise.anyof(
    my $promise = $proc.start,  # may or may not work in time 
    Promise.in(5).then: {       # fires after 5 seconds no matter what 
        unless $promise {       # don't do anything if we were successful 
            note 'timeout';
            $proc.kill;
        }
    }
).then: { $promise.result }
# OUTPUT: «timeout␤»

$seconds can be fractional or negative. Negative values are treated as 0 (i.e. keeping the returned Promise right away).

Please note that situations like these are often more clearly handled with a react and whenever block.