[![Build Status](https://travis-ci.org/pine/p5-Hash-Util-Pick.svg?branch=master)](https://travis-ci.org/pine/p5-Hash-Util-Pick) [![Build Status](https://img.shields.io/appveyor/ci/pine/p5-Hash-Util-Pick/master.svg?logo=appveyor)](https://ci.appveyor.com/project/pine/p5-Hash-Util-Pick/branch/master) # NAME Hash::Util::Pick - The non-destructive utilities for picking hash # SYNOPSIS ```perl use Hash::Util::Pick qw/pick/; my $src = { foo => 0, bar => 1, baz => 2, }; my $dest = pick $hash => qw/foo bar/; # => { foo => 0, bar => 1 } ``` # DESCRIPTION Hash::Util::Pick is the non-destructive utilities for picking hash # METHODS ## `pick(\%hash, @keys)` Create hash reference picked by special keys. ```perl pick { } => qw/foo/; # { } pick { foo => 0 } => qw/bar/; # { } pick { foo => 0, bar => 1 } => qw/foo/; # { foo => 0 } ``` ## `pick_by(\%hash, \&predicate)` Create hash reference picked by block. ```perl pick_by { foo => 0, bar => 1 } => sub { $_ > 0 }; # { bar => 1 } ``` ## `omit(\%hash, @keys)` Create hash reference omitted by special keys. ```perl omit { } => qw/foo/; # { } omit { foo => 0 } => qw/bar/; # { foo => 0 } omit { foo => 0, bar => 1 } => qw/foo/; # { bar => 1 } ``` ## `omit_by(\%hash, \&predicate)` Create hash reference omitted by block. ```perl omit_by { foo => 0, bar => 1 } => sub { $_ > 0 }; # { foo => 0 } ``` # SEE ALSO - [Lodash Documentation](https://lodash.com/docs/) # LICENSE The MIT License (MIT) Copyright (c) 2016-2019 Pine Mizune Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # AUTHOR Pine Mizune