接口 HTMLCollectionOf<T>

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 HTMLCollectionOf<T> {
    length: number;
    item(index: number): null | T;
    namedItem(name: string): null | T;
    [index: number]: T;
}

类型参数

T extends Element

层级 (查看完整内容)

HTMLCollectionBase
- HTMLCollectionOf
  - HTMLOptionsCollection

可索引

[index: number]: T

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 | T
Retrieves an object from various collections.
参数
- index: number
返回 null | T
重写了 HTMLCollectionBase.item

namedItem

namedItem(name): null | T
参数
- name: string
返回 null | T