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Fetch the last element of a list

Given the list [Red, Green, Blue], access the last element ('Blue')
DiskEdit
ruby
['Red', 'Green', 'Blue'][-1]
DiskEdit
ruby
['Red', 'Green', 'Blue'].at(-1)
DiskEdit
ruby
['Red', 'Green', 'Blue'].last
DiskEdit
ruby
['Red', 'Green', 'Blue'].fetch(-1)

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