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docs: add detail to router event doc (#32140) 

PR Close #32140
This commit is contained in:
Judy Bogart 2019-08-14 11:04:26 -07:00 committed by atscott
parent ef2047555a
commit e3f42818e9
2 changed files with 6 additions and 2 deletions
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3
aio/content/guide/router.md
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@ -519,7 +519,8 @@ During each navigation, the `Router` emits navigation events through the `Router
<td>
An [event](api/router/NavigationCancel) triggered when navigation is canceled.
This is due to a [Route Guard](#guards) returning false during navigation.
This can happen when a [Route Guard](#guards) returns false during navigation,
or redirects by returning a `UrlTree`.
</td>
</tr>

5
packages/router/src/events.ts
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@ -122,7 +122,10 @@ export class NavigationEnd extends RouterEvent {
}
/**
* An event triggered when a navigation is canceled.
* An event triggered when a navigation is canceled, directly or indirectly.
*
* This can happen when a [route guard](guide/router#milestone-5-route-guards)
* returns `false` or initiates a redirect by returning a `UrlTree`.
*
* @publicApi
*/