* `href` will be ignored.

* `protocol` is treated the same with or without the trailing `:` (colon).

* The protocols `http`, `https`, `ftp`, `gopher`, `file` will be

postfixed with `://` (colon-slash-slash).

* All other protocols `mailto`, `xmpp`, `aim`, `sftp`, `foo`, etc will

be postfixed with `:` (colon)

* `auth` will be used if present.

* `hostname` will only be used if `host` is absent.

* `port` will only be used if `host` is absent.

* `host` will be used in place of `hostname` and `port`

* `pathname` is treated the same with or without the leading `/` (slash)

* `search` will be used in place of `query`

* `query` (object see `querystring`) will only be used if `search` is absent.

* `search` is treated the same with or without the leading `?` (question mark)

* `hash` is treated the same with or without the leading `#` (pound sign, anchor)-* `href` will be ignored.

* `protocol` is treated the same with or without the trailing `:` (colon).

* The protocols `http`, `https`, `ftp`, `gopher`, `file` will be

　　postfixed with `://` (colon-slash-slash).

* All other protocols `mailto`, `xmpp`, `aim`, `sftp`, `foo`, etc will

　　be postfixed with `:` (colon)

* `auth` will be used if present.

* `hostname` will only be used if `host` is absent.

* `port` will only be used if `host` is absent.

* `host` will be used in place of `hostname` and `port`

* `pathname` is treated the same with or without the leading `/` (slash)

* `search` will be used in place of `query`

* `query` (object　see `querystring`) will only be used if `search` is absent.

* `search` is treated the same with or without the leading `?` (question mark)

* `hash` is treated the same with or without the leading `#` (pound sign, anchor)