Function URLSerializer

lib/internal/data_url.js:140–155

* @param {URL} url * @param {boolean} excludeFragment * @returns {string}

(url, excludeFragment = false)

 * @returns {string}
 */
function URLSerializer(url, excludeFragment = false) {
  const { href } = url;

  if (!excludeFragment) {
    return href;
  }

  const hashLength = url.hash.length;
  const serialized = hashLength === 0 ? href : StringPrototypeSlice(href, 0, href.length - hashLength);

  if (!hashLength && href[href.length - 1] === '#') {
    return StringPrototypeSlice(serialized, 0, -1);
  }

  return serialized;
}

/**
 * A faster collectASequenceOfCodePoints that only works when comparing a single character.