September 2018
Intermediate to advanced
302 pages
7h 17m
English
Content preview from Hands-On Design Patterns with React Native
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When to use error boundaries
ErrorBoundary is a great pattern for sure. It takes the try-catch concept into declarative JSX. The first time I saw it, I immediately came up with the idea to wrap the whole application into a boundary. This is fine, but it is not the only use case.
Consider the following use cases for error boundaries:
- Widgets: Given some incorrect data, your widget may run into problems. If, in the worst case scenario, it cannot handle the data, it may throw an error. You will want the rest of the app to be usable, given that this widget is not crucial for the rest of the application. Your analytics code should collect the error and save at least a stack trace so that the developers can fix it.
- Modals: Preserve the rest of ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.