As I work on developing an AngularJS (Ionic) app, I have come across many resources emphasizing the best practices in AngularJS development. One common guideline mentioned is to avoid using controllers for DOM interactions. I currently have calls to ionicLoading and ionicPopup within my controllers. Are these considered DOM interactions, and if so, where should they ideally be placed?
It is completely acceptable to show/hide popups from the controller. For example, if you have a button on the user interface, you can use ng-click="onButtonClick()" to trigger the display of a popup with a message.
When we mention "avoid DOM manipulation within the controller", it means refraining from direct DOM operations like document.getElementById("#someId").someDOMOperation() or $("#someId").someDOMOperation(). In such cases, it is recommended to create a directive and apply it on the UI instead.
Both $ionicLoading and $ionicPopup are services that have the ability to manipulate the DOM in specific scenarios, such as modals.
When using these services in your controllers, you can call the necessary methods, but the actual DOM manipulation is handled within the service itself.
This insight comes from Misko Hevery, known as the Father of Angular JS.
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