# \`String -\> int\` function

**URL:** https://discourse.nixos.org/t/string-int-function/69291
**Category:** Help
**Created:** [September 12, 2025, 3:08pm UTC](https://discourse.nixos.org/t/string-int-function/69291 "2025-09-12T15:08:16Z")
**Posts on this page:** 1
**Showing post:** 6

<div class="post-metadata">

### Author: ![joelmccracken](https://discourse.nixos.org/user_avatar/discourse.nixos.org/joelmccracken/32/8006_2.png) [@joelmccracken](https://discourse.nixos.org/u/joelmccracken)
#### Post date: [September 12, 2025, 6:02pm UTC](https://discourse.nixos.org/t/string-int-function/69291/6 "2025-09-12T18:02:14Z")

</div>

maybe combine

> <https://github.com/NixOS/nixpkgs/blob/9c6d827f8d4803d2880f052661fad342ebca9c0f/lib/trivial.nix#L1122-L1156>

and

[https://teu5us.github.io/nix-lib.html#builtins.hashstring](https://teu5us.github.io/nix-lib.html#builtins.hashstring)

and then parse with the aforementioned `fromJSON` function?

---

_[View the full topic](https://discourse.nixos.org/t/string-int-function/69291)._