从url中删除特定的查询字符串参数值

function removeQueryParam(url, param) {
  // 解析URL
  var parser = document.createElement('a');
  parser.href = url;

  // 获取查询字符串参数
  var queryParams = parser.search.substring(1).split('&');

  // 解析查询字符串参数
  var params = {};
  queryParams.forEach(function(queryParam) {
    var parts = queryParam.split('=');
    var key = decodeURIComponent(parts[0]);
    var value = decodeURIComponent(parts[1]);
    params[key] = value;
  });

  // 删除特定参数值
  delete params[param];

  // 重新构建URL
  var updatedParams = Object.keys(params).map(function(key) {
    return encodeURIComponent(key) + '=' + encodeURIComponent(params[key]);
  });
  var updatedQueryString = updatedParams.join('&');
  parser.search = updatedQueryString;

  // 返回更新后的URL
  return parser.href;
}

// 示例用法
var url = 'https://www.example.com/page?param1=value1&param2=value2&param3=value3';
var paramToRemove = 'param2';
var updatedUrl = removeQueryParam(url, paramToRemove);
console.log(updatedUrl);