To do that, you go through the results array, each time getting a reference to the individual element and retrieving its attributes.
为此，要遍历结果数组，每次获取一个单独元素的引用并检索它的属性。
Every time a notification shell is opened, we keep a reference of it in a static array of shells.
每次通知shell被打开，我们在静态的shell数组中保留一个引用。
This time Angular detects that the array reference has changed.
这次，Angular检测到数组的引用变化了。
This time Angular detects that the array reference has changed.
这次，Angular检测到数组的引用变化了。
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