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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.
export function _common(paths: string[], sep: string): string {  const [first = "", ...remaining] = paths;  const parts = first.split(sep);
  let endOfPrefix = parts.length;  let append = "";  for (const path of remaining) {    const compare = path.split(sep);    if (compare.length <= endOfPrefix) {      endOfPrefix = compare.length;      append = "";    }
    for (let i = 0; i < endOfPrefix; i++) {      if (compare[i] !== parts[i]) {        endOfPrefix = i;        append = i === 0 ? "" : sep;        break;      }    }  }  return parts.slice(0, endOfPrefix).join(sep) + append;}