sema-docs 1.20.4

Canonical structured documentation for Sema builtins/special forms; powers LSP hover/completion and REPL apropos
Documentation
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---
name: "string/before"
module: "strings"
section: "Slicing & Extraction"
---

Everything before the first occurrence of a needle.

```sema
(string/before "hello@world.com" "@")  ; => "hello"
(string/before "no-match" "@")         ; => "no-match"
```