// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
import { isWindows } from "./_os.ts";
import { dirname as posixDirname } from "./posix/dirname.ts";
import { dirname as windowsDirname } from "./windows/dirname.ts";
/**
* Return the directory path of a path.
*
* @example Usage
* ```ts
* import { dirname } from "@std/path/dirname";
* import { assertEquals } from "@std/assert";
*
* if (Deno.build.os === "windows") {
* assertEquals(dirname("C:\\home\\user\\Documents\\image.png"), "C:\\home\\user\\Documents");
* } else {
* assertEquals(dirname("/home/user/Documents/image.png"), "/home/user/Documents");
* }
* ```
*
* Note: If you are working with file URLs,
* use the new version of `dirname` from `@std/path/unstable-dirname`.
*
* @param path Path to extract the directory from.
* @returns The directory path.
*/
export function dirname(path: string): string {
return isWindows ? windowsDirname(path) : posixDirname(path);
}
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