// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// This module is browser compatible.

import { _common } from "./_common/common.ts";
import { SEPARATOR } from "./constants.ts";

/** Determines the common path from a set of paths, using an optional separator,
 * which defaults to the OS default separator.
 *
 * ```ts
 *       import { common } from "@std/path";
 *       const p = common([
 *         "./deno/std/path/mod.ts",
 *         "./deno/std/fs/mod.ts",
 *       ]);
 *       console.log(p); // "./deno/std/"
 * ```
 */
export function common(
  paths: string[],
  sep: string = SEPARATOR,
): string {
  return _common(paths, sep);
}