org.w3c.dom.html
Interface HTMLCollection
public interface HTMLCollection
An HTMLCollection
is a list of nodes. An individual nodemay be
accessed by either ordinal index or the node'sname
or
id
attributes. Note:Collections in the HTML DOM are assumed
to be live meaningthat they are automatically updated when the underlying
document ischanged.
int | getLength() - This attribute specifies the length or size of the list.
|
Node | item(int index) - This method retrieves a node specified by ordinal index.
|
Node | namedItem(String name) - This method retrieves a
Node using a name.
|
getLength
public int getLength()
This attribute specifies the length or size of the list.
item
public Node item(int index)
This method retrieves a node specified by ordinal index. Nodes are
numbered in tree order (depth-first traversal order).
index
- The index of the node to be fetched. The index origin is 0.
- The
Node
at the corresponding position upon success.
A value of null
is returned if the index is out of range.
namedItem
public Node namedItem(String name)
This method retrieves a Node
using a name. It first searches
for a Node
with a matching id
attribute. If it
doesn't find one, it then searches for a Node
with a
matching name
attribute, but only on those elements that
are allowed a name attribute.
name
- The name of the Node
to be fetched.
- The
Node
with a name
or id
attribute whose value corresponds to the specified string. Upon
failure (e.g., no node with this name exists), returns
null
.