March 2017
Intermediate to advanced
118 pages
2h 1m
English
Content preview from Angular RouterBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Custom error handler
Every navigation will either succeed, will be cancelled, or will error. There are two ways to observe this.
The router.events observable will emit:
NavigationStartwhen navigation starsNavigationEndwhen navigation succeedsNavigationCancelwhen navigation is canceledNavigationErrorwhen navigation fails
All of them contain the id property we can use to group the events associated with a particular navigation.
If we call
router.navigate
or
router.navigateByUrl
directly, we will get a promise that:
- will be resolved with true if the navigation succeeds
- will be resolved with false if the navigation gets cancelled
- will be rejected if the navigation fails
Navigation fails when the router cannot match the URL or an exception ...
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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.