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Hello Teachers , I have questions about instructions 2 ,
Notice in the view, we're using ng-repeat to loop through each item in the days array. Inside this loop, display a day's four pieces of data.

Why it's not {{}} or {{fiveDay,xxx}} but becomes {{day.datetime | date}} , {{day.high}} , {{day.low}}.
I checked the files like forecast.js & MainController.js , still don't know why and where to call the data.


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