Alias a old method a new name, then change the implementation of old method : alias « Method « Ruby

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Ruby » Method » alias   Alias a old method a new name, then change the implementation of old method class Array   alias :length_old :length   def length     return length_old / 2   end end array = [1, 2, 3, 4] array.length                                       # => 2 array.size                                         # => 4 array.length_old                                   # => 4 class Array   alias :length :length_old end array.length                                       # => 4   Related examples in the same category 1.  Give length a new name 2.  Create a Wrapper method to alias 3.  Redefining Backquotes 4.  Aliasing Methods

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