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-last"
module: "strings"
section: "Slicing & Extraction"
---

Everything before the last occurrence of a needle.

```sema
(string/before-last "a.b.c" ".")  ; => "a.b"
```