elixir-lang/elixir — pull request #2464 by KronicDeth (2014-06-29 01:57:39+00:00)
Title: Enum.sort_by/3

Fixes #2460

Implement the `Enum.sort_by` I requested in #2460 using the signature Enum.sort_by(collection, mapper, sorter). sorter is optional and default to `<=/2`.