jQuery 如何通过javascript从父窗口访问子窗口？
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How to access child window from parent window through javascript?
提问by Kshitij Jain
Suppose we open a popup through javascript when a link is clicked on parent window.
假设我们在父窗口上单击链接时通过 javascript 打开一个弹出窗口。
As everybody knows that parent window elements can be accessed from child window using the window.opener()function.
众所周知，可以使用window.opener()函数从子窗口访问父窗口元素。
Is it possible to do exactly reverse ? Can parent window access the information about the child window ?
是否可以完全反向？父窗口可以访问子窗口的信息吗？
回答by Arpit Agrawal
You mean something like this:
你的意思是这样的：
a=window.open()
a.document.write("<div id='mydiv'>test</div>")
a.document.getElementById("mydiv")
回答by niksvp
When you open a windowthrough javascript'swindow.open()function it returns you a referenceof the child window.
当您打开一个windowthrough javascript'swindow.open()函数时，它会返回一个reference子窗口。
Using this reference you can access elementsof the child window, required it complies with Same origin policysecurity requirements.
使用此参考，您可以访问elements子窗口，前提是它符合同源策略安全要求。
