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Discuss Ruby Challenge
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Detailed Ruby Questions

  • What is the difference between a hash and an array?

  • A hash is an unordered collection of key value pairs. An array is ordered and each value in the array corresponds to an index number, instead of a key.

  • What is the difference between a string and a symbol?

  • A symbol is similar to a string except for it can refer to a particular method or data table row.

  • When would you use composition instead of inheritance?

  • You would use composition if you wanted to create a new class with its own qualities, instead of inheriting qualities from another class

Big Picture Questions

  • Is it better to make a single large application, or to make many smaller applications? If you do ever take the second approach, how do you make them talk to each other?
  • It is typically considered better to make many smaller applications so that they're more maintanable. You make them talk to each others through APIs. This is called Service Oriented Architecture.
  • Do you think that there are any downsides to Object-Oriented Programming?
  • There are some downsides to object oriented programming in that in some instances making everything an object can cause you to write more code than in procedural programming.
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