Sharing data between pages in app

[pwespi]

I like this approach using ReplaySubject and Observable:

Provider/server: Provide the data or contain the data?

I don’t quite follow this, because reading from Local Storage is expensive (i.e., slow), so if you’re the only person writing to it (since it’s local) the situation is different from reading and writing to a database that someone else might be writing to also. If you are the sole writer, it’s most efficient to read once upon app startup, and then only write after that, along the lines of: Let’s suppose you care about one array of string that is your checklist. In ChecklistProvider: private …