Js method for obtaining parameters from pages. js method for obtaining page Parameters

Js method for obtaining parameters from pages. js method for obtaining page Parameters

This article mainly introduces how to use window. location. search to obtain parameters from the page.

function GetQueryString(name) { var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)","i"); var r = window.location.search.substr(1).match(reg); if (r!=null) return (r[2]); return null; } var sname = GetQueryString("name"); if(sname!=null) { var sname_ = decodeURIComponent(sname); alert(sname_); }

Test

Abcd.html? Name = xyz

Xyz should pop up

How does Javascript in html obtain parameters passed through the POST method?

Javascript in html cannot obtain the parameters passed through the post method on the server.
However, php jsp and asp can

How to obtain parameters in js

Upload the following values on page:

Window. showModalDialog ("ModalDialogFrame. aspx? Title = select Organization Department & PageUrl = ParentTreeView. aspx ", window," dialogWidth = paipx; dialogHeight = paipx; status = no; center = yes ;");

Upload the following values on page:

Window. showModalDialog ("ModalDialogFrame. aspx? Title = select Organization Department & PageUrl = ParentTreeView. aspx ", window," dialogWidth = paipx; dialogHeight = paipx; status = no; center = yes; "); view plaincopy to clipboardprint?

On the page ModalDialogFrame. aspx:

Function GetQueryString (sProp)

{

Var re = new RegExp ("[&,?] "+ SProp +" = ([^ \ &] *) "," I ");

Var a = re.exe c (document. location. search );

If (a = null)

Return "";

Return a [1];

}

On the page ModalDialogFrame. aspx:

Function GetQueryString (sProp)

{

Var re = new RegExp ("[&,?] "+ SProp +" = ([^ \ &] *) "," I ");

Var a = re.exe c (document. location. search );

If (a = null)

Return "";

Return a [1];

} View plaincopy to clipboardprint?

Call method:

Var url = GetQueryString ("PageUrl"); // ParentTreeView. aspx

Var title = GetQueryString ("Title"); // select an organizational unit