How Javascript passes values between two forms

This article mainly explains "Javascript how to pass values between two forms", interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's take you to learn "Javascript how to pass values between two forms"!

For example, we create a new form FatherPage.htm:

XML-Code:function OpenChildWindow(){ window.open('ChildPage.htm'); }

In fact, while opening the sub-form, we can also assign values to the elements of the sub-form, because the window.open function will also return a reference to the sub-form, so FatherPage.htm can be modified to:

XML-Code:function OpenChildWindow(){ var child = window.open('ChildPage.htm'); child.document.getElementById('txtInput').value =document.getElementById('txtInput').value; }

This is not enough. When closing the child form, you must also clear the child variable of the parent form, otherwise you cannot reopen the child form after opening it again:

XML-Code: At this point, I believe that everyone has a deeper understanding of "how Javascript passes values between two forms," so let's actually operate it! Here is the website, more related content can enter the relevant channels for inquiry, pay attention to us, continue to learn!