org.w3c.dom.html

## Interface HTMLCollection

-     public interface HTMLCollection

  An `HTMLCollection` is a list of nodes. An individual node may be accessed by either ordinal index or the node's`name` 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

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `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

    - #### getLength

          int getLength()

      This attribute specifies the length or size of the list.

    - #### item

          Node item(int index)

      This method retrieves a node specified by ordinal index. Nodes are numbered in tree order (depth-first traversal order).
      Parameters:
        `index` - The index of the node to be fetched. The index origin is 0.
      Returns:
        The `Node` at the corresponding position upon success. A value of `null` is returned if the index is out of range.

    - #### namedItem

          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.
      Parameters:
        `name` - The name of the `Node` to be fetched.
      Returns:
        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` .

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