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Add Who Are My Ancestors as a ruby til.

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jbranchaud
2015-12-31 10:59:25 -06:00
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# Who Are My Ancestors?
Ruby's `Module` class provides the
[`#ancestors`](http://ruby-doc.org/core-2.1.0/Module.html#method-i-ancestors)
method. This method allows you to determine the ancestors (parents,
grandparents, etc.) of a given class.
```ruby
> 5.class.ancestors
=> [Fixnum, Integer, Numeric, Comparable, Object, PP::ObjectMixin, Kernel, BasicObject]
> Array.ancestors
=> [Array, Enumerable, Object, PP::ObjectMixin, Kernel, BasicObject]
> Class.ancestors
=> [Class, Module, Object, PP::ObjectMixin, Kernel, BasicObject]
> BasicObject.ancestors
=> [BasicObject]
```