How to get the height of a iframe?

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// Get the iframe element
var iframe = document.getElementById('your-iframe-id');

// Get the content window of the iframe
var iframeWindow = iframe.contentWindow;

// Get the scroll height of the iframe content
var iframeHeight = iframeWindow.document.body.scrollHeight;

// Log the height of the iframe
console.log("Height of the iframe: ", iframeHeight);