In the past, AngularJS is using "ng-if" to control whether the div is show or hide. That is basic 101. In Angular, the syntax are changed, there are no more "ng-" somethings. Now, that is using somethings more similar with, [hidden]. So you can bind a variable with that to control the visibility of div.
Example:

Code

In the angular, that is easy and clean to do that.