Dom 简明教程
DOM - NodeList Object
NodeList 对象指定已排序节点集合的抽象。NodeList 中的项目可以通过从 0 开始的整数索引访问。
The NodeList object specifies the abstraction of an ordered collection of nodes. The items in the NodeList are accessible via an integral index, starting from 0.
Attributes
下表列出了 NodeList 对象的属性 −
The following table lists the attributes of the NodeList object −
Attribute |
Type |
Description |
unsigned long |
It gives the number of nodes in the node list. |
Methods
以下为 NodeList 对象的唯一方法。
The following is the only method of the NodeList object.
S.No. |
Method & Description |
1 |
item()It returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, this returns null. |