Angular2获取点击的元素ID [英] Angular2 get clicked element id
问题描述
我有这样的点击事件
<button (click)="toggle($event)" class="someclass" id="btn1"></button>
<button (click)="toggle($event)" class="someclass" id="btn2"></button>
我在函数输入参数中捕获了该事件,并希望找出确切单击了什么按钮.
I am catching the event in my function input param and want to find out what exactly button was clicked.
toggle(event) {
}
,但是event
没有id
属性.
altKey: false
bubbles: true
button: 0
buttons: 0
cancelBubble: false
cancelable: true
clientX: 1198
clientY: 29
ctrlKey: false
currentTarget: button#hdrbtn_notificaton.mdl-button.mdl-js-button.mdl-js-ripple-effect.mdl-button--icon
defaultPrevented: false
detail: 1
eventPhase: 3
fromElement: null
isTrusted: true
isTrusted: true
layerX: -566
layerY: 5
metaKey: false
movementX: 0
movementY: 0
offsetX: 22
offsetY: 13
pageX: 1198
pageY: 29
path: Array[13]
relatedTarget: null
returnValue: true
screenX: 1797
screenY: 148
shiftKey: false
sourceCapabilities: InputDeviceCapabilities
srcElement: span.mdl-button__ripple-container
target: span.mdl-button__ripple-container
timeStamp: 1458032708743
toElement: span.mdl-button__ripple-container
type: "click"
view: Window
webkitMovementX: 0
webkitMovementY: 0
which: 1
x: 1198
y: 29
如何找到id
?
更新: 柱塞都很好,但就我而言,我在本地:
UPDATE: Plunkers are all good but in my case I have locally:
event.srcElement.attributes.id
-未定义
event.currentTarget.id
-具有值
我正在使用chrome最新版本49.0.2623.87 m
I am using chrome latest Version 49.0.2623.87 m
可能是Material Design Lite
东西吗?因为我正在使用它.
Could it be Material Design Lite
thing? because I am using it.
推荐答案
如果您希望访问按钮的id
属性,则可以利用事件的srcElement
属性:
If you want to have access to the id
attribute of the button you can leverage the srcElement
property of the event:
import {Component} from 'angular2/core';
@Component({
selector: 'my-app',
template: `
<button (click)="onClick($event)" id="test">Click</button>
`
})
export class AppComponent {
onClick(event) {
var target = event.target || event.srcElement || event.currentTarget;
var idAttr = target.attributes.id;
var value = idAttr.nodeValue;
}
}
查看此插件: https://plnkr.co/edit/QGdou4?p=preview .
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