Difference between document.URL and location.href

问题:

I know that document.URL can not be set, while location.href can.

But the Document indicates:

URL is a replacement for the DOM Level 0 location.href property.

So when would we use document.URL?

回答1:

You can get the document.URL, but you can not set it. You can both get and set the location.href.

In some webbrowsers, you are able to set the document.URL but please don't, as it doesn't work in most browsers.

You gave the answer yourself!

var currentURL = document.URL;
alert(currentURL);

Learn more here

回答2:

They're interchangeable as far as getting data is concerned, but as you pointed out document.URL can not be set. I just always use location.href since it's a getter/setter.

回答3:

Yes and no!

alert(document.url);  
document.url="http://www.google.co.uk";  
alert(document.url);