当我输入一个时，我有几个文本框会填充

Question

我正在创建一个动态表单，允许用户指定问题的内容以及存储在 Google Firestore 集合中的问题数量。当我填写一个文本框时，其他文本框就会充满完全相同的内容。

html 文件：创建表单并使用 angular 表单模块。添加项目

  <ul *ngFor="let question of questions">
    <li><strong>{{question.name}}</strong>
      <input type="text" placeholder="Add Title" [(ngModel)] = 'answer.name' name = "title">
    </li>
  </ul>

  <input type="submit" value = "Submit" class = "btn">
</form>

ts 文件：ts 文件从数据服务获取数据并将 tha 提供给 html。

@Component({
  selector: 'app-add-item',
  templateUrl: './add-item.component.html',
  styleUrls: ['./add-item.component.scss']
})
export class AddItemComponent implements OnInit {
  questions: Question[];
  items: Item[];
  answers: Answer[];
  answer: Answer = {
    name:'',
    number:0

  }
  item: Item = {
    title:'',
    description:'',

  }
  question: Question = {
    name:'',
    number:null,
    answer:'',
  }
  database;
  doc:'';


  constructor(private dataService: DataService, private route: ActivatedRoute) { 
    this.route.params.subscribe(params => this.doc = params["id"])

  }

  ngOnInit() {
    this.dataService.getQuestions(this.doc).subscribe(questions => {
      this.questions = questions;
    })
  }
  onSubmit(){
{
  if(this.answer.name != ''){
    console.log(this.answer.name)
    this.dataService.addAnswer(this.answer);
    this.answer.name = "";


    }


  }

}}

预计文本框会单独填写，我可以记录他们的数据。

实际情况是所有文本框同时被填充。

Answer 1

您可以通过以下方式从文本框中获取单独的值

 <ul *ngFor="let question of questions">
<li><strong>{{question.name}}</strong>
  <input type="text" placeholder="Add Title" [(ngModel)] = 'question.answer' name = "title">
</li>

Answer 2

<ul *ngFor="let question of questions"><li><strong>{{question.name}}</strong><input type="text" placeholder="Add Title" [(ngModel)] = 'question.answer' name =title[]></li>

当我输入一个时，我有几个文本框会填充

I have a few text boxes that fill when I type in one

javascript

angularfire2

angular

google-cloud-firestore