update url parameter

gistfile1.txt

  function addOrUpdateUrlParam(name, value) {
      var href = window.location.href;
      var regexPage = /[&\?]page=\d+/;
      href = decodeURIComponent(href.replace(regexPage, ""));
      var regex = new RegExp("[&\\?]" + name + "=");
      if (regex.test(href)) {
        //regex = new RegExp("([&\\?])" + name + "=(\\w+(,\\w+)\*)");
        regex = new RegExp("([&\\?])" + name + "=((\\w+(,\\w+)\*)|([\\u4e00-\\u9fa5]*\\/?[\\u4e00-\\u9fa5]\*))");
        if (regex.test(href)) {
          window.location.href = href.replace(regex, "$1" + name + "=" + value);
        } else {
          window.location.href = href.replace(name + "=", name + "=" + value);
        }
      } else {
        if (href.indexOf("?") > -1) {
          window.location.href = href + "&" + name + "=" + value;
        } else {
          window.location.href = href + "?" + name + "=" + value;
        }
      }
    }