Promise::ES6 - ES6-style promises in Perl
my $promise = Promise::ES6->new( sub { my ($resolve_cr, $reject_cr) = @_; # .. } ); my $promise2 = $promise->then( sub { .. }, sub { .. } ); my $promise3 = $promise->catch( sub { .. } ); my $promise4 = $promise->finally( sub { .. } ); my $resolved = Promise::ES6->resolve(5); my $rejected = Promise::ES6->reject('nono'); my $all_promise = Promise::ES6->all( \@promises ); my $race_promise = Promise::ES6->race( \@promises );
This is a rewrite of Promise::Tiny that implements fixes for certain bugs that proved hard to fix in the original code. This module also removes superfluous dependencies on AnyEvent and Scalar::Util.
The interface is the same, except:
Promise resolutions and rejections take exactly one argument, not a list. (This accords with the standard.)
A finally() method is defined.
finally()
Right now this doesn’t try for interoperability with other promise classes. If that’s something you want, make a feature request.
If you’re not sure of what promises are, there are several good introductions to the topic. You might start with this one.
To install Promise::ES6, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Promise::ES6
CPAN shell
perl -MCPAN -e shell install Promise::ES6
For more information on module installation, please visit the detailed CPAN module installation guide.