Class: Hash

Inherits:
Object show all
Defined in:
lib/finishing_moves/hash.rb

Instance Method Summary collapse

Instance Method Details

#delete!(key) ⇒ Object

When deleting a value from a hash, return the remaining hash, instead of the deleted value



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# File 'lib/finishing_moves/hash.rb', line 4

def delete!(key)
  self.delete(key)
  return self
end

#delete_each(*hash_keys) ⇒ Object

Delete all records according to the keys passed in as an array, and return a hash of deleted entries. Silently ignores any keys which are not found.



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# File 'lib/finishing_moves/hash.rb', line 11

def delete_each(*hash_keys)
  deleted_entries = {}
  hash_keys.each do |hash_key|
    value = self.delete(hash_key)
    deleted_entries[hash_key] = value unless value.nil?
  end
  return deleted_entries unless deleted_entries.empty?
  nil
end

#delete_each!(*keys) ⇒ Object

Delete all records according to the keys passed in as array, and return the remaining hash.



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# File 'lib/finishing_moves/hash.rb', line 22

def delete_each!(*keys)
  self.delete_each(*keys)
  return self
end

#sample ⇒ Object

TODO Replicate ‘sample` method functionality from Array



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# File 'lib/finishing_moves/hash.rb', line 29

def sample
  key = self.keys.sample
  return {:"#{key}" => self[key]}
end