Rails lists have .first and .second – is there a .hundredth or .sixty_nineth ?

Question

Is there a class or other extension for Rails that allows more than the first few elements in a series (and the last)? These work:

[2,45,2,14,53,23,634,346,         


        

Answer 1

You can just use square brackets:

list[6]
list[100]

Answer 2

There was a time when Rails added these, but there was a lot of controversy so most were removed. The only one of this experiment that remains is Array#forty_two.

Answer 3

In activesupport, it does monkey patching few of these methods into Array class. If you really want more, you can take a look how to implement from activesupport:

https://github.com/rails/rails/blob/master/activesupport/lib/active_support/core_ext/array/access.rb