Ruby in Twenty Minutes - The Diigo Meta page

• 08 Sep 11
  

  Alessandro Muraro

  Using attr_accessor defined two new methods for us, name to get the value, and name= to set it.

  ruby

  • Using attr_accessor defined two new methods for us, name to get the value, and name= to set it.
• 19 Feb 11
  

  Walter Whinnery

  • Once the g object is created, it remembers that the name is Pat. Hmm, what if we want to get at the name directly?

       
  • Nope, can’t do it.
  • Instance variables are hidden away inside the object. They’re not terribly hidden, you see them whenever you inspect the object, and there are other ways of accessing them, but Ruby uses the good object-oriented approach of keeping data sort-of hidden away.
  • If we want to just list methods defined for Greeter we can tell it to not include ancestors by passing it the parameter false, meaning we don’t want methods defined by ancestors
  • to_s (meaning convert something to a string, a method that’s defined by default for every object)
  • easy way of providing access to an object’s variables.
  • In Ruby, you can open a class up again and modify it. The changes will be present in any new objects you create and even available in existing objects of that class.
  • Using attr_accessor defined two new methods for us, name to get the value, and name= to set it.

  6 more annotations...

• 19 Jan 11
  

  ncmwesk

  ruby tutorial

• 02 Jul 10
  

  Parin Sharma
  • Instance variables are hidden away inside the object. They’re not terribly hidden, you see them whenever you inspect the object, and there are other ways of accessing them, but Ruby uses the good object-oriented approach of keeping data sort-of hidden away.
• 10 Jan 08
  

  mrseoliveira

  del.icio.us imported ruby

• 24 Sep 07
  

  swan lin

  ruby selenium

  • Ruby uses the good object-oriented approach of keeping data sort-of hidden away.

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