接口 HTMLCollectionBase

A generic collection (array-like object similar to arguments) of elements (in document order) and offers methods and properties for selecting from the list.

interface HTMLCollectionBase {
    length: number;
    item(index: number): null | Element;
    [index: number]: Element;
}

层级 (查看完整内容)

HTMLCollectionBase

可索引

[index: number]: Element

索引

属性

方法

属性

`只读`length

length: number

Sets or retrieves the number of objects in a collection.

方法

item

item(index): null | Element
Retrieves an object from various collections.
参数
- index: number
返回 null | Element