If you are not using a .(dot) in your AngularJS models you are doing it wrong?

Question

I remember seeing this famous quote from a video on AngularJS saying that should be always using a . (dot) in your models.

Well I am trying to follow this say I have

Answer 1

The "there should always be a dot in your model" refers to ngModel. This directive does two-way binding. If you two-way bind to a primitive (such as a Boolean in your case), the setter will set it on the current scope rather than the scope on which it is defined, which can cause a headache when you have a large user-interface with a lot of child scopes. It does not refer to other directives such as ngDisable. See this explanation for more details on this specific issue.

Sample scenario: a parent scope with $scope.foo = "bar", and a child scope with a <input type="text" data-ng-model="foo">. It will display bar initially, but once the user changes the value, a foo will be created on the child scope and the binding will read and write that value. The parent's foo will remain bar. Hope that summarises it well.

So for ngModel purposes, you might have to create an object to work around such binding issues, but for any other directive you should have the regular, logical grouping.