# Elixir → JavaScript Porting Initiative

**URL:** <https://forum.elixirforum.com/t/elixir-javascript-porting-initiative/73335>\
**Category:** News & Updates\
**Tags:** hologram, hologram-help\
**Created:** [November 16, 2025, 12:24am UTC](https://forum.elixirforum.com/t/elixir-javascript-porting-initiative/73335 "2025-11-16T00:24:09Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![tenkiller](https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/tenkiller/32/39502_2.png) [@tenkiller](https://forum.elixirforum.com/u/tenkiller)\
**Post date:** [December 2, 2025, 3:00pm UTC](https://forum.elixirforum.com/t/elixir-javascript-porting-initiative/73335/14 "2025-12-02T15:00:00Z")

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I did take a look at [Port :sets.union/2 to JS by 4mritGiri · Pull Request #432 · bartblast/hologram · GitHub](https://github.com/bartblast/hologram/pull/432/files), which uses `Type.map` under-the-hood. If that’s the preferred type to use going forward, I can go with that initially and wait for feedback.

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