在Javascript中从URL中提取数字ID

function extractNumberIdFromUrl(url) {
  const regex = /\d+/g; // 正则表达式，用于匹配数字ID
  const matches = url.match(regex);
  if (matches && matches.length > 0) {
    return parseInt(matches[0]);
  }
  return null;
}

const url = "https://example.com/product/12345";
const id = extractNumberIdFromUrl(url);
console.log(id); // 输出：12345