Not sure what you mean. If "预留窗口" is referring to a <iframe>:
Updating DOM in an <iframe> is possible, you can acquire the document object of the frame using iframeElement.contentDocument || iframeElement.contentWindow.document, then modify it. You can also call functions defined inside <iframe> using iframeElement.contentWindow directly.
Notice you'll need to follow same-origin policy in order to do so.
![[웹 프런트엔드] Node.js 빠른 시작](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
可以的。
AngularJs之类的MVVM框架就是这么玩儿的。模版通过ajax请求过来，js渲染到DOM里。
Not sure what you mean. If "预留窗口" is referring to a
<iframe>:Updating DOM in an
<iframe>is possible, you can acquire thedocumentobject of the frame usingiframeElement.contentDocument || iframeElement.contentWindow.document, then modify it. You can also call functions defined inside<iframe>usingiframeElement.contentWindowdirectly.Notice you'll need to follow same-origin policy in order to do so.