std/path/posix/unstable_basename.ts

33 lines
1.2 KiB
TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// This module is browser compatible.
import { basename as stableBasename } from "./basename.ts";
import { fromFileUrl } from "./from_file_url.ts";
/**
* Return the last portion of a `path`.
* Trailing directory separators are ignored, and optional suffix is removed.
*
* @experimental **UNSTABLE**: New API, yet to be vetted.
*
* @example Usage
* ```ts
* import { basename } from "@std/path/posix/unstable-basename";
* import { assertEquals } from "@std/assert";
*
* assertEquals(basename("/home/user/Documents/"), "Documents");
* assertEquals(basename("/home/user/Documents/image.png"), "image.png");
* assertEquals(basename("/home/user/Documents/image.png", ".png"), "image");
* assertEquals(basename(new URL("file:///home/user/Documents/image.png")), "image.png");
* assertEquals(basename(new URL("file:///home/user/Documents/image.png"), ".png"), "image");
* ```
*
* @param path The path to extract the name from.
* @param suffix The suffix to remove from extracted name.
* @returns The extracted name.
*/
export function basename(path: string | URL, suffix = ""): string {
path = path instanceof URL ? fromFileUrl(path) : path;
return stableBasename(path, suffix);
}