Question

How can I use the alias_method method in Ruby to make a copy of the [] method in the Array class

Answer 1

create aliases for a method and variable name in ruby. This can be helpful if you want to override the behavior of some method without changing the origin implementation of it. alias_method take a new_name as a copy name of the old_name and it has the following syntax.

Syntax :

alias_method (new_name, old_name)

Example

class Davi

def capital puts "Karaz-a-Karak"

end

alias_method :orig_capital, :capital

def capital puts "Karaz-a-Karak rebuild"

orig_capital

end

end

davi = Davi.new

davi.capital