After transitioning from state A to state B in my application, I noticed that when navigating back to state A, it seems to reload. Does this mean that State A is being destroyed during the transition to state B? If so, how can I prevent State A from reloading again during back navigation?
Indeed, Angular can only hold one state at a time. Various methods exist for preserving states, such as utilizing a service to store private variables with getters and setters, saving data in localStorage/sessionStorage, using query strings, and more. Each approach comes with its own set of advantages and disadvantages, so conducting further research on angular.io within the router section is advisable.
In terms of implementing classes, components in Angular can implement interfaces like OnInit and OnDestroy. By including these functions in the code, you can manage state loading and saving actions upon component initialization and destruction. Here's an example:
export class ChatComponent implements OnInit, OnDestroy {
constructor(){}
onDestroy(){
// Save logic implemented here
}
onInit() {
// Load logic implemented here
}
}
While it's possible to load state within the constructor, many consider implementing the onInit function for better performance. However, corrections or alternative approaches are always welcome.
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