TreeWalker
to the previous visible node in document order relative to the current node, and returns the new node. If the current node has no previous node, or if the search for previousNode attempts to step upward from the TreeWalker's root node, returns null
, and retains the current node.
@return The new node, or null
if the current node has noprevious node in the TreeWalker's logical view.
NULL
if no previous Node.
@return the previous Node starting from the initially given Node using adepth-first-Search or NULL
if no previous Node.
NULL
if no previous Node.
@return the previous Node starting from the initially given Node using adepth-first-Search or NULL
if no previous Node.
Node
in the set being iterated over, ornull
if there are no more members in that set.
@exception DOMException INVALID_STATE_ERR: Raised if this method is called after the detach
method was invoked.
TreeWalker
to the previous visible node in document order relative to the current node, and returns the new node. If the current node has no previous node, or if the search for previousNode attempts to step upward from the TreeWalker's root node, returns null
, and retains the current node.
@return The new node, or null
if the current node has no previous node in the TreeWalker's logical view.
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