Make the information field required:
<input type="checkbox" ng-model="myVar">
<input name="myInput" ng-model="myInput" ng-required="myVar">
Definition and Usage
ng-required mandate sets the required property of a structure
field (input or textarea).
The structure field will be required if the articulation inside the
quality returns true.
ng-required order is important to almost certainly move the
false. In HTML, you can't set
required ascribe to
false (the nearness of the
required quality makes the component required, paying little respect to it's value).
Supported by <input>, <select>, and <textarea> and other editable elements
|expression||An articulation that will set the required trait on the off chance that it returns true.|