从 ngFor 到动态命名变量的角度引用 ngIf

Question

I want to access the input element in the following ngIf for checking if it's currently having a specific value or not. The not working part here is the code inside the ngIf .

<span *ngFor="let item of items;let i=index">
      <input type="text" #[InputItem+i] value="{{item}}"/>
      <div *ngIf="('InputItem'+i).value" >
        I'm focused!
      </div>
</span>

Answer 1

<span *ngFor="let item of items;let i=index">
  <input type="text" value="{{item}}"/>
  <div *ngIf="InputItem[i]" >
    I'm focused!
  </div>

Declare variable InputItem:[] as array

Try to declare InputItem as arry like InputItem[0] = false,InputItem[1] = false like wise and you can update the variable when you need based condition