How to compare versions in Ruby?

Question

How to write a piece of code to compare some versions strings and get the newest?

For example strings like: \'0.1\', \'0.2.1\', \'0.44\'.

Answer 1

If you need to check pessimistic version constraints, you can use Gem::Dependency like this:

Gem::Dependency.new('', '~> 1.4.5').match?('', '1.4.6beta4')