Angular中ngValue和value的区别, 前端老生Angular, 前端开发, Angular(清泉石上流)

Angular中ngValue和value的区别

2018-11-11 14:09:52 阅读(74354) 评论(0)

最近在用angula中的option时传递一个对象遇到问题,使用[value]绑定对象输出'[Object object]' 获取值失败。

解决办法

将[value]改为[ngValue]

value 用来绑定字符串，ngValue用于对象绑定

Property	Description
id: string	ID of the option element
@Input() ngValue: any	Write-only. Tracks the value bound to the option element. Unlike the value binding, ngValue supports binding to objects.
@Input() value: any	Write-only. Tracks simple string values bound to the option element. For objects, use the ngValue input binding.

Property

Description

id: string

ID of the option element

Write-only.

Tracks the value bound to the option element. Unlike the value binding, ngValue supports binding to objects.

@Input()
value: any

Write-only.

Tracks simple string values bound to the option element. For objects, use the ngValue input binding.

Angular 前端开发

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