sema-docs 1.20.0

Canonical structured documentation for Sema builtins/special forms; powers LSP hover/completion and REPL apropos
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12

---
name: "cons"
module: "lists"
section: "Construction & Access"
---

Prepend an element to a list.

```sema
(cons 0 '(1 2 3))  ; => (0 1 2 3)
(cons 1 '())       ; => (1)
```