For details about JS window. Location. href, location. href, and parent. Location. href references

Usage of "window. Location. href", "location. href", "parent. Location. href", and "Top. Location. href" in JS

"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