从角度2的对象文字获取存储的索引

Question

I have a stored object literal which returns 2 or more objects depending on the users actions. This is then filtered further depending on if they are complete or not, so there are generally 2 object arrays that are sent to the view.

in the view i do a simple ngFor

 <ion-card *ngFor="let item of inProgressList">
    ...

Which is a segment of the complete list held in a variable programsList

In order to change an item from in progress to complete i need to update the object, which works fine, however i cannot correctly pass the index.

filledOutFormsData[this.index].complete = true;

As i cannot get the correct index based on the array that has been filtered.

I cannot use

  <ion-card *ngFor="let item of inProgressList; let i = index">

Because that will return a index of the looped items which will be incorrect once one other object is equal to complete

Basically i need to get the object key from the original object literal into the filtered array to use in the view so that i can pass the index.

Answer 1

因此，我通过添加一个自定义管道来对其进行工作，该管道用于过滤programsList而不是传递两个单独的列表，然后可以使用trackBy选项传递正确的索引。