JS page Refresh Location.reload and location.replace the difference summary

The syntax for the two methods is introduced first:
the reload method, which forces the browser to refresh the current page.
Syntax: Location.reload ([Bforceget])
Parameters: Bforceget, optional parameter, default is False, the current page is taken from the client cache. True, the latest page from the server is taken as a GET, equivalent to the client clicking F5 ("Refresh")

Replace Method, the method replaces the item currently cached in history (client) by specifying a URL, so you cannot access the URL that has been replaced by "forward" and "back" after using the Replace method.
syntax: Location.replace (URL)
In the actual application, when re-refresh the page, we usually use: Location.reload () or history.go (0) to do. Because this practice is like the client point F5 Refresh the page, so the page method= "POST", there will be "page expiration" prompt. That's because of the session's security protection mechanism. It can be thought that when the Location.reload () method is called, the ASPX page is already present in the server memory, so it must be IsPostback. If there is such an application: we need to reload the page, which means we expect the page to be re-created on the server and we expect it to be not IsPostback. Here, Location.replace () can complete this task. The Replace page is regenerated on the server each time. You can write this: Location.replace (location.href)

Here are the relevant applications and knowledge points:
Window.location.href
Window.top.location.replace ("Http://www.jb51.net")
Top.location.href ("Http://www.jb51.net")
Window.navigate ("Http://www.jb51.net")
Html:
<meta http-equiv= "Refresh" content= "0; url=http://baidu.com/">
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URL: Uniform Resource Locator (Uniform Resource Locator, URL)
The complete URL consists of the following parts:
Scheme://host:port/path?query#fragment
Scheme: Communication protocol
Common Http,ftp,maito, etc.
Host: Hosts
The server (computer) domain Name System (DNS) hostname or IP address.
Port: Port number
An integer, optionally, that omits the default port for using the scenario, such as HTTP, with the default port of 80.
Path: Paths
A string separated by 0 or more "/" symbols, typically used to represent a directory or file address on a host.
Query: Querying
Optional, for use with dynamic Web pages such as CGI, ISAPI, php/jsp/asp/asp. NET and other technical Web pages) pass parameters, can have multiple parameters, separated by the "&" symbol, the name and value of each parameter is separated by the "=" symbol.
Fragment: Pieces of information
String that specifies the fragment in the network resource. For example, there are multiple noun interpretations in a Web page, and you can use fragment to navigate directly to a noun interpretation. (also known as anchor points.)
For such a URL
Http://www.jb51.net:80/fisker/post/0703/window.location.html?ver=1.0&id=6#imhere

We can use JavaScript to get every part of it.
1, Window.location.href
The entire URL string (in the browser is the full address bar)
This example returns the value: Http://www.jb51.net:80/fisker/post/0703/window.location.html?ver=1.0&id=6#imhere
2,window.location.protocol
The protocol portion of the URL
This example returns the value: http:
3,window.location.host
The host part of the URL
This example returns the value: Www.jb51.net
4,window.location.port
The port portion of the URL
If you are using the default 80 port (update: Even if you added: 80), the return value is not the default of 80 but the null character
This example returns the value: ""
5,window.location.pathname
The path portion of the URL (that is, the file address)
This example returns the value:/fisker/post/0703/window.location.html
6,window.location.search
Query (Parameters) Section
In addition to assigning values to dynamic languages, we can also give static pages and use JavaScript to get the values of the arguments we believe in.
This example returns the value:? ver=1.0&id=6
7,window.location.hash
Anchor Point
This example returns the value: #imhere

Original link:

Http://www.jb51.net/article/21573.htm

JS page Refresh Location.reload and location.replace the difference summary (GO)