appendChild method
Adds the node newChild to the end of the list of children of this node. If the newChild is already in the tree, it is first removed.
appendChild(newChild )
Parameters
Node newChild
The node to add.
If it is a DocumentFragment object, the entire contents of the document fragment are moved into the child list of this node
Returns
Node. The node added.
Throws
DOMException
HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the newChild node, or if the node to append is one of this node's ancestors.
WRONG_DOCUMENT_ERR: Raised if newChild was created from a different document than the one that created this node.
NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
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