删除我的网址中.html之后的最后5个字符

// 假设网址为 https://www.example.com/path/to/page.html?param1=value1&param2=value2

// 找到.html的位置
var url = "https://www.example.com/path/to/page.html?param1=value1&param2=value2";
var htmlIndex = url.indexOf(".html");

if (htmlIndex !== -1) {
  // 删除.html之后的字符
  var urlWithoutHtml = url.substring(0, htmlIndex + 5);

  // 删除最后5个字符
  var finalUrl = urlWithoutHtml.substring(0, urlWithoutHtml.length - 5);

  console.log(finalUrl); // 输出 https://www.example.com/path/to/page
} else {
  console.log("网址中没有.html");
}