bensie / rubyist.new Goto Github PK

Here is my solution to yesterday's exercise:
https://gist.github.com/1014564

I want to clarify something that came up last night. Take the following example:

class Address
  def initialize(options = {})
    @street = options[:street]
  end
end

Keep in mind that whenever there is an "=" as part of an argument list, it means that we're setting a default. In this case, if we initialize a new object without passing any arguments to Address.new(), the variable options will be set as any empty hash in the initializer. This in no way says that the options argument must be a hash.

Let's say we skip setting the default value here:

class Address
  def initialize(options)
    @street = options[:street]
  end
end

In this case, options becomes a required argument and there is no default value. It could still very well be a hash, but we're just not providing a default.

In either case, options can be passed to Address.new as any type of object (string, integer, array, etc), but we're expecting a hash and operating under the assumption that we'll be getting a hash.

Feel free to post any questions here.

@tapatio, @jkussmann, @weblife, @CreamyGoodness, @derekwrobel