Tryit Editor v3.6

<!DOCTYPE html>
<html>
<body>

<div id="myDIV">
  <span id="mySpan" style="font-size:35px;">A Span element</span>
</div>

<p>Click one button to remove the span element from its parent. Click the other button to insert the removed span element into the other document's h1 element (the new parent).</p>

<button onclick="removeLi()">Remove span</button>
<button onclick="myFunction()">Insert span</button>

function removeLi() {
  child.parentNode.removeChild(child);
}

function myFunction() {
  var frame = document.getElementsByTagName("IFRAME")[0]
  var h = frame.contentWindow.document.getElementsByTagName("H1")[0];
  var x = document.adoptNode(child);
  h.appendChild(x);
}
</script>

</body>

</html>

​x
 
<!DOCTYPE html><html><body>​<iframe src="../default.html" style="height:400px;width:650px;"></iframe>​<div id="myDIV">  <span id="mySpan" style="font-size:35px;">A Span element</span></div>​<p>Click one button to remove the span element from its parent. Click the other button to insert the removed span element into the other document's h1 element (the new parent).</p>​<button onclick="removeLi()">Remove span</button><button onclick="myFunction()">Insert span</button>​<script>var child = document.getElementById("mySpan");​function removeLi() {  child.parentNode.removeChild(child);}​function myFunction() {  var frame = document.getElementsByTagName("IFRAME")[0]  var h = frame.contentWindow.document.getElementsByTagName("H1")[0];  var x = document.adoptNode(child);  h.appendChild(x);}</script>​</body>​<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_node_removechild5 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:02:20 GMT --></html>​

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