HashTraverse

{foo: {hoi: 'hei'}, bar: 2}.traverse(:foo, :hoi) # => 'hei'

Installation

Add this line to your application's Gemfile:

gem 'hash_traverse'

And then execute:

$ bundle

Or install it yourself as:

$ gem install hash_traverse

Usage

t = HashTraverse::Traverser.new(foo: {hoi: 'hei'}, bar: 2)

t.traverse(:foo) # => {hoi: 'hei'}
t.traverse(:foo, :hoi) # => 'hei'

t.traverse(:foo, :poi) # => nil

# Can customize missing behaviour
t.traverse(:foo, :poi) { :null } # => :null

t.traverse(:foo, :poi) {|*args| args } # => [[:foo], {hoi: 'hei'}]

t.traverse(:foo, :hoi, :oi) {|*args| args } # => [[:foo, :hoi], 'hei']

Use monkey patching mode with require-ing hash_traverse/core_ext if you like to use HashTraverse everywhere.

require 'hash_traverse/core_ext'

{foo: {hoi: 'hei'}, bar: 2}.traverse(:foo, :hoi) # => 'hei'

Contributing

1. Fork it ( https://github.com/esminc/hash_traverse/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