Module: HashReplaceKey

Included in:: Hash

Defined in:: lib/core_ext/hash_replace_key.rb

Instance Method Summary collapse

Instance Method Details

#replace_key(original, replacement) ⇒ `Object`



2
3
4

# File 'lib/core_ext/hash_replace_key.rb', line 2

def replace_key(original, replacement)
  dup.replace_key!(original, replacement)
end

#replace_key!(original, replacement) ⇒ `Object`

# File 'lib/core_ext/hash_replace_key.rb', line 6

def replace_key!(original, replacement)
  return self unless has_key?(original)

  self[replacement] = delete(original)

  self
end