0
import { Component, Input, Output, EventEmitter } from '@angular/core';
var colorPickerCss = "app/css/ui/color-picker.css";
var colorPickerTemplate = "app/partials/color-picker.html";
@Component({
selector: 'color-picker',
styleUrls: [colorPickerCss],
templateUrl: colorPickerTemplate
})
export class ColorPicker{
@Input() colors: string[] = [];
@Output() selectedColor = new EventEmitter();
isSelectorVisible : boolean = false;
showSelector(value: boolean){
this.isSelectorVisible = value;
}
selectColor(color: string){
this.showSelector(false);
this.selectedColor.next({color});
}
} ;
我寫了上面的代碼,但我想了解它的功能。我的問題是,這條線上的.next()函數是什麼this.selectedColor.next({color})。它來自哪個庫?我已經提到了上面的輸入,但是我不能真正理解這個函數的實際定義。角度中的.next()函數的說明
next is deprecated - see [this question](https://stackoverflow.com/questions/35840576/difference-between-eventemitter-next-and-eventemitter-emit-in-angular-2)以及那裏的答案提及[這個資源](https://github.com/angular/angular/blob/b5b6ece65a96f5b8f134ad4899b56bf84afe3ba0/modules/angular2/src/facade/async.dart#L49)如果這有助於你的理解 – 0mpurdy