How to get parent page elements from iframe subpages

Get the elements of the parent page in the iframe subpage

The code is as follows:

$.('#objld', parent.document);

Get the elements of the iframe subpage in the parent page
The code is as follows:

$("#objid", document.iframes('iframe').document)

or

$(document.getElementById('iframeId').contentWindow.document.body).html() $(document.getElementById('iframeId').contentWindow.document.body).html()

Display the content of the body element in the iframe

$("#testId", document.frames("iframename").document).html()

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