如何获取当前页面上一页的网址？ [英] How to get url of previous page on current page?

问题描述

我想知道如何通过变量访问上一页网址？



我可以使用该变量来比较网址吗？



假设

i want to know how to access previous page URL through variable??

can i use that variable to compare a URL ??

suppose

var oldUrl = "www.google.com";

if (oldUrl =  "www.google.com")

{
 do some thing

}

场景如上所述是可能的？

scenario like above is possible??

推荐答案

如评论中所述，你可以使用document.referrer属性但检查为null，因为它并不总是被填充。

As mentioned in the comments, you can use document.referrer property but check for null since it is not always filled in.

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