Question

when Im cloning an object in javascript by doing object.cloneNode(true) the parentNode is null in the new copy.
Im trying to set it but with no success.
my code look like this:

old_DataRoot = DataRoot.cloneNode(true);
old_DataRoot.parentNode=DataRoot.parentNode.cloneNode(true);

also tried:

    old_DataRoot = DataRoot.cloneNode(true);
    old_DataRoot.parentNode.appendChild(DataRoot.parentNode.cloneNode(true));

both options give me “old_DataRoot.parentNode is null or not an object”
what am I doing wrong?

thanks alot,
Yoni.

Answer 1

If you’re trying

to make a backup of the original DataRoot in order to recover it
later.

then consider

// Backup
var DataRootBackup = {
    nodes: DataRoot.cloneNode(true),
    parent: DataRoot.parentNode
};

// Restore
DataRootBackup.parent.appendChild( DataRootBackup.nodes );