HashMultiTool

Installation

Add this line to your application's Gemfile:

gem 'hash_multi_tool'

And then execute:

$ bundle

Or install it yourself as:

$ gem install hash_multi_tool

Usage

ARR_HASH = [{ foo: 'a', bar: 4 },
{ foo: 'b', bar: 3 },
{ foo: 'c', bar: 1 },
{ foo: 'b', bar: 4 }]

1. HashMultiTool.sort_by_order ARR_HASH, [:bar, :foo] :-

   Note: By default it will sort in ASC order

   If you Want to sort in DESC order.

   HashMultiTool.sort_by_order ARR_HASH, [:bar, :foo], "DESC"

2. Find array of hashes of matched key values :-

   HashMultiTool.select_by_key_value ARR_HASH, :bar, 4

   => [{ foo: 'a', bar: 4 }, { foo: 'b', bar: 4 }]

3. Return all the available keys from a hash including subset hash :-

   hash = {"World" => "Region", "Country" => [{"Name" => "India", "Capital" => "Delhi"}, {"Name" => "England", "Capital" => "London"}]} hash_keys = HashMultiTool.collect_keys hash => ["World","Country","Name","Capital","Name","Capital"]

   hash_keys.uniq => ["World","Country","Name","Capital"]

4. Merge the keys and with collected values belongs to respective keys and return a single hash

   arr = [{a:1, b:2, c:3},{a:1, b:2, c:3},{a:1, b:2, c:3},{a:1, b:2}]

   hash_keys = HashMultiTool.transpose_to_hash arr

   => {:a=>[1, 1, 1, 1], :b=>[2, 2, 2, 2], :c=>[3, 3, 3]}

5. Return a collection of keys differentiated with values

   hash = {:a=>[1, 1, 1, 1], :b=>[2, 2, 2, 2], :c=>[3, 3, 3]}

   hash_keys = HashMultiTool.transpose_to_array hash

   => [{a:1, b:2, c:3},{a:1, b:2, c:3},{a:1, b:2, c:3},{a:1, b:2}]

6. Sort a hash by value in ascending order:

   hash = {a: 1000, b: 500, c: 1500}

   HashMultiTool.sort_asc hash

   => {:a=>500, :b=>1000, :c=>1500}

7. Sort a hash by value in descending order:

   hash = {a: 1000, b: 500, c: 1500}

   HashMultiTool.sort_desc hash

   => {:c=>1500, :b=>1000, :a=>500}

8. Convert values of hash to percentage based on sum of values

   hash = {a: 20, b: 20}

   HashMultiTool.values_to_percentage hash

   => {:a=>50.0, :b=>50.0}

Development

After checking out the repo, run bin/setup to install dependencies. Then, run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release to create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

1. Fork it ( https://github.com/[my-github-username]/hash_multi_tool/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request