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Common DOM API | |||||||||
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public interface HTMLCollection
An HTMLCollection
is a list of nodes. An individual node may
be accessed by either ordinal index or the node'sname
or
id
attributes. Note: Collections in the HTML DOM are assumed
to be live meaning that they are automatically updated when the
underlying document is changed.
See also the Document Object Model (DOM) Level 2 Specification.
Method Summary | |
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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. |
Method Detail |
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int getLength()
Node item(int index)
index
- The index of the node to be fetched. The index origin is
0.
Node
at the corresponding position upon
success. A value of null
is returned if the index is
out of range.Node namedItem(String name)
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.
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
.
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