Class: Hash

Inherits:

Object

Object
Hash

show all

Defined in:: lib/petit/core_ext.rb

Instance Method Summary collapse

#rename_key(old, new) ⇒ Object

Renames the key in a hash.

Instance Method Details

#rename_key(old, new) ⇒ `Object`

Renames the key in a hash

Example:

h = ["a" => 100, "b" => 200]
h.rename_key("a","c")
h       # => ["c" => 100, "b" => 200]
h["c"]  # => 100



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# File 'lib/petit/core_ext.rb', line 11

def rename_key(old,new)
  self[new] = self.delete(old)
end