jQuery 取網址、根目錄

suppose that you have a page with this address: http://sub.domain.com/page.htm. use the following in page code to achive those results:
  • window.location.host : you’ll get sub.domain.com:8080 or sub.domain.com:80
  • window.location.hostname : you’ll get sub.domain.com
  • window.location.protocol : you’ll get http:
  • window.location.port : you’ll get 8080 or 80
  • window.location.origin : you’ll get http://sub.domain.com *
Update: about the .origin
* As the ref states, browser compatibility for window.location.origin is not clear. I’ve checked it in chrome and it returned http://sub.domain.com:port.
出處
http://stackoverflow.com/questions/1368264/get-host-name-in-javascript
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