Str.First | /typical/index.ts | rimbu@1.1.0

Rimbu is a TypeScript library focused on immutable, performant, and type-safe collections and other tools.

type alias Str.First

import { type Str } from "https://deno.land/x/rimbu@1.1.0/typical/index.ts";
const { First } = Str;

Returns the first character of the given string, or false if the string is empty.

Examples

Example 1

First<'abc'> => 'a'
First<''> => false

S extends string

definition: S extends Append<infer First, string> ? First : false