December 02, 2023

Discussion on Introducing Local Mutable Variables in Elixir Inspired by Koka

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Discussion on Introducing Local Mutable Variables in Elixir Inspired by Koka

Source: elixirforum.com

Type: Discussion

Functional Programming

José Valim suggested a new feature for the Elixir programming language: local mutable variables, drawing inspiration from Koka. The feature is intended as a syntactical construct to improve the clarity of certain code patterns, particularly when dealing with comprehensions that could benefit from a form of mutable state. The proposed mutable variables would be confined to their local scope, where mutation would be transparent and compile to immutable code in the backend, ensuring that Elixir's functional principles remain intact. The proposal sparked a community discussion on potential syntax, the value of such a feature, and how it aligns with Elixir's philosophy of immutability.

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