NAME Update::Immutable - React-compatible data-structure update utility SYNOPSIS use Update::Immutable; my $orig = { a => 1 }; my $new = Update::Immutable::update($orig, { b => { '$set' => 2 } }); ## new: { a => 1, b => 2 } ## orig: { a => 1 } DESCRIPTION This is a perl implementation of the react update function . There are some additional features and bugfixes. For details, see the companion javascript module . SEE ALSO Update-Immutable github repo The companion javascript module AUTHOR Doug Hoyte, "" COPYRIGHT & LICENSE Copyright 2016 Doug Hoyte. This module is licensed under the same terms as perl itself.