如何在URL中添加参数？ [英] How to add a parameter to the URL?

问题描述

我当前的网址是： http://something.com/mobiles.php?brand=samsung

现在，当用户点击最低价格过滤器（比如300）时，我希望我的网址变为

Now when a user clicks on a minimum price filter (say 300), I want my URL to become

http://something.com /mobiles.php?brand=samsung&priceMin=300

换句话说，我正在寻找一个将添加指定的javascript函数当前URL中的参数，然后将网页重定向到新URL。

In other words, I am looking for a javascript function which will add a specified parameter in the current URL and then re-direct the webpage to the new URL.

注意：如果没有设置参数，那么该函数应该添加？而不是& ;

Note: If no parameters are set then the function should add ? instead of &

ie如果当前网址为 http://something.com/mobiles.php ，则应将网页重定向到 http://something.com /mobiles.php?priceMin=300
而不是 http://something.com/mobiles.php&priceMin=300

i.e. if the current URL is http://something.com/mobiles.php then page should be re-directed to http://something.com/mobiles.php?priceMin=300 instead of http://something.com/mobiles.php&priceMin=300

推荐答案

尝试类似这样的事情，它也应该考虑你已经在url中有这个参数的情况：

try something like this, it should consider also cases when you already have that param in url:

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

然后你就像你的情况一样调用它：

then you invoke it like in your case:

addOrUpdateUrlParam('priceMin', 300);

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