DsHash¶ ↑

A Ruby Hash class extensions.

Install¶ ↑

gem install ds_hash

Learning by example¶ ↑

Hash.deep_key?

hash = { :a => { :b => 'b' } }
hash.deep_key? :a, :b    # return true
hash.deep_key? :a, :x    # return false

Hash.deep_fetch

hash = { :a => { :b => 'hello' } }
hash.deep_fetch :a, :b    # return 'hello'
hash.deep_fetch :a, :x    # return nil

Hash.deep_dup

hash = { :a => { :b => 'b' } }
dup  = hash.deep_dup           # Returns a deep copy of hash (like rails active support)
dup[:a][:c] = 'c'

hash[:a][:c] #=> nil
dup[:a][:c]  #=> "c"

Hash.to_struct

hash = { :a => { :b => 'hello' } }
struct  = hash.to_struct     # Returns a nested struct
puts struct.a                #  { :b => 'hello' }
puts struct.a.b              # 'hello'

Hash.compact

{ a: 1, b: nil }.compact == { a: 1 }  # remove nil values

Hash.compact!

vide Hash.compact

Hash.clean

idem Hash.compact

Hash.clean!

idem Hash.compact!

Contributing to ds_hash¶ ↑

• Check out the latest master to make sure the feature hasn’t been implemented or the bug hasn’t been fixed yet.

• Check out the issue tracker to make sure someone already hasn’t requested it and/or contributed it.

• Fork the project.

• Start a feature/bugfix branch.

• Commit and push until you are happy with your contribution.

• Make sure to add tests for it. This is important so I don’t break it in a future version unintentionally.

• Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.

Copyright¶ ↑

Copyright © 2013 nardele salomon. See LICENSE.txt for further details.