您可以在函数内部使用window.confirm并结合if条件

 delete(whatever:any){
    if(window.confirm('Are sure you want to delete this item ?')){
    //put your delete method logic here
   }
}

当你调用delete方法时,它会弹出一条确认消息,当你按下ok时,它将执行if条件中的所有逻辑.

我很晚才参加派对,但这是使用ng-bootstrap的另一个实现:https://stackblitz.com/edit/angular-confirmation-dialog

确认-dialog.service.ts

import { Injectable } from '@angular/core';
import { Observable } from 'rxjs/Observable';

import { NgbModal } from '@ng-bootstrap/ng-bootstrap';

import { ConfirmationDialogComponent } from './confirmation-dialog.component';

@Injectable()
export class ConfirmationDialogService {

  constructor(private modalService: NgbModal) { }

  public confirm(
    title: string,
    message: string,
    btnOkText: string = 'OK',
    btnCancelText: string = 'Cancel',
    dialogSize: 'sm'|'lg' = 'sm'): Promise {
    const modalRef = this.modalService.open(ConfirmationDialogComponent, { size: dialogSize });
    modalRef.componentInstance.title = title;
    modalRef.componentInstance.message = message;
    modalRef.componentInstance.btnOkText = btnOkText;
    modalRef.componentInstance.btnCancelText = btnCancelText;

    return modalRef.result;
  }

}

确认-dialog.component.ts

import { Component, Input, OnInit } from '@angular/core';
import { NgbActiveModal } from '@ng-bootstrap/ng-bootstrap';

@Component({
  selector: 'app-confirmation-dialog',
  templateUrl: './confirmation-dialog.component.html',
  styleUrls: ['./confirmation-dialog.component.scss'],
})
export class ConfirmationDialogComponent implements OnInit {

  @Input() title: string;
  @Input() message: string;
  @Input() btnOkText: string;
  @Input() btnCancelText: string;

  constructor(private activeModal: NgbActiveModal) { }

  ngOnInit() {
  }

  public decline() {
    this.activeModal.close(false);
  }

  public accept() {
    this.activeModal.close(true);
  }

  public dismiss() {
    this.activeModal.dismiss();
  }

}

确认-dialog.component.html

  
{{ title }}
    
      ×
    
  
  

    {{ message }}
  
  

    {{ btnCancelText }}
    {{ btnOkText }}
  

使用如下对话框:

public openConfirmationDialog() {
    this.confirmationDialogService.confirm('Please confirm..', 'Do you really want to ... ?')
    .then((confirmed) => console.log('User confirmed:', confirmed))
    .catch(() => console.log('User dismissed the dialog (e.g., by using ESC, clicking the cross icon, or clicking outside the dialog)'));
  }

更新:Plunkr补充道

我一直在寻找在所有论坛上的解决方案,但没有找到,所以找到与老同学JavaScript回调函数的解决方案:-)这是一个非常简单和干净的方式来创建一个确认对话框,设置回呼功能都YES和NO点击事件.
我使用了Bootrap CSS for Modal和一个带有rxjs主题的警报服务.

这是我的alert.component.html

        

            

                

                    
{{message.text}}
                
            
            

                

                    

                        
                            No
                        
                        
                            Yes
                        
                    
                
            
         

和alert.component.ts

export class AlertComponent {
    message: any;
    constructor(
      public router: Router, 
      private route: ActivatedRoute, 
      private alertService: AlertService,
   ) { }
   ngOnInit() {
    //this function waits for a message from alert service, it gets 
    //triggered when we call this from any other component
    this.alertService.getMessage().subscribe(message => {
        this.message = message;
    });
}

最重要的部分就在这里!alert.service.ts

     import { Injectable } from '@angular/core'; 
     import { Router, NavigationStart } from '@angular/router'; 
     import { Observable } from 'rxjs'; 
     import { Subject } from 'rxjs/Subject';
     @Injectable() export class AlertService {
          private subject = new Subject();
          constructor(){}
          confirm(message: string,siFn:()=>void,noFn:()=>void){
            this.setConfirmation(message,siFn,noFn);
          }
          setConfirmation(message: string,siFn:()=>void,noFn:()=>void) {
            let that = this;
            this.subject.next({ type: "confirm",
                        text: message,
                        siFn:
                        function(){
                            that.subject.next(); //this will close the modal
                            siFn();
                        },
                        noFn:function(){
                            that.subject.next();
                            noFn();
                        }
                     });

                 }

          getMessage(): Observable {
             return this.subject.asObservable();
          }
       }

从任何组件调用该函数

           this.alertService.confirm("You sure Bro?",function(){
              //ACTION: Do this If user says YES
            },function(){
              //ACTION: Do this if user says NO
            })

Plunkr https://embed.plnkr.co/vWBT2nWmtsXff0MXMKdd/