JS window. Location. href, location. href, parent. Location. href, top. Location. href usage

"Window. Location. href" and "location. href" indicate the current page Jump.

 

"Parent. Location. href" is the previous page Jump

 

"Top. Location. href" is the outermost page Jump

 

 

Example:

If A, B, C, and D are all JSP, D is the IFRAME of C, C is the IFRAME of B, and B is the IFRAME of A, if Js in D is written like this

 

"Window. Location. href", "location. href": D page Jump

 

"Parent. Location. href": C page Jump

 

"Top. Location. href": a page Jump

 

 

If form exists on Page D,

 

<Form>: Jump to the D page after the form is submitted

<Form target = "_ blank">: a new page is displayed after the form is submitted.

 

<Form target = "_ parent">: C page jump after form is submitted

 

<Form target = "_ top">: Jump to page a after form is submitted

 

 

For page refresh, write the following in page D:

 

"Parent. location. reload (); ": refreshes the C page (of course, you can also use the opener object of the Child Window to obtain the parent window object: zookeeper opener.doc ument. location. reload ();)

 

 

"Top. Location. Reload ();": page a is refreshed.