Ruby on Rails Interview questions – update

Most of Google searches that hit my blog are about ‘ruby on rails interview questions‘.

Responding to this popular request 😉 , I will post 3 more questions that are related.

1. What type of data would you use to represent currency?

2. Why is it not a good practice to use float for currency?

3. Explain the following behaviour:

~$ ruby --version
ruby 1.8.7 (2009-06-12 patchlevel 174) [i486-linux]
~$ irb
irb(main):003:0> (10.12*100).to_i
=>; 1011

The answer – in my next post .

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One Response

  1. […] Why You Shouldn’t Use Float for Currency (floating point issues – explained for Ruby and RoR) This article is a response to https://vladzloteanu.wordpress.com/2010/01/06/ruby-on-rails-interview-questions-update/ […]

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