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Automatically refresh the page, automatically refresh the current page, JS call _javascript Tips

Source: Internet
Author: User
Tags server memory
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The

Reload method, which forces the browser to refresh the current page.
Syntax: Location.reload ([Bforceget])                                                                                                                                   parameters: bforceget, optional parameters, default to False, take the current page from the client cache. True to get the latest page from the service, equivalent to the client clicks F5 ("Refresh")

Replace method, which replaces the item currently cached in history (the client) by specifying a URL, so after you use the Replace method, you cannot access the URL that has been replaced by "forward" and "back".
Syntax: Location.replace (URL)

In practical applications, when refreshing the page, we usually use: Location.reload () or History.go (0). Because this practice is like the client point F5 Refresh the page, so the page method= "POST", will appear "page expiration" hint. That's because the session's security protection mechanism. It can be thought that when the Location.reload () method is invoked, the ASPX page already exists in the server memory, so it must be IsPostback. If this applies: we need to reload the page, which means we expect the page to be recreated on the server side, and we expect it to be not IsPostback. Here, Location.replace () can complete this task. The replaced pages are regenerated each time on the server side.

You can write this: Location.replace (LOCATION.HREF);

Go back and refresh the page:

Copy Code code as follows:

Location.replace (Document.referrer);
Document.referrer//URL of previous page


Do not use History.go (-1), or history.back (), to return and refresh the page, both of which do not refresh the page.

Report:
JavaScript refreshes the page in several ways:

Copy Code code as follows:

History.go (0)
Location.reload ()
Location=location
Location.assign (location)
Document.execcommand (' Refresh ')
Window.navigate (location)
Location.replace (location)
Document. Url=location.href


Ways to automatically refresh pages:
1. Page Automatic refresh: Add the following code to the <meta http-equiv= "Refresh" content= ">"
20 of which means that the page is refreshed every 20 seconds.

2. Page Automatic Jump: Add the following code to the <meta http-equiv= "Refresh" content= "20;url=http://www.jb51.net" >
20 of which refers to 20 seconds after the jump to the Http://www.jb51.net page

3. Page automatically refresh JS version

Copy Code code as follows:

<script language= "JavaScript" >
function Myrefresh ()
{
Window.location.reload ();
}
SetTimeout (' Myrefresh () ', 1000); Specify 1 seconds to refresh once
</script>

JS Refresh Frame Script statement

How to refresh the page that contains the frame with

Copy Code code as follows:

<script language=javascript>
Parent.location.reload ();
</script>
child window refreshes parent window
<script language=javascript>
Self.opener.location.reload ();
</script>
(or <a href= "javascript:opener.location.reload ()" > Refresh </a>)

How to refresh another frame's page with
<script language=javascript>
Parent. Another FrameID.location.reload ();
</script>


If you want to close the window or refresh when you want to open windows, call the following statement in <body>.
Copy Code code as follows:

<body onload= "Opener.location.reload ()" > Refresh when opening windows
<body onunload= "Opener.location.reload ()" > Refresh when closed

<script language= "JavaScript" >
Window.opener.document.location.reload ()
</script>

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Related Keywords:
html refresh current page php refresh current page reload php page automatically uwp refresh page page refresh chrome plugin php refresh page php refresh page once

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