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  4. [Note To Self] Debugging Angular 4 Routing

[Note To Self] Debugging Angular 4 Routing

Are you looking for a way to easily debug your routing setup in Angular 4? Look no further and take a gander at this quick tip.

By 
Yohan Liyanage user avatar
Yohan Liyanage
·
May. 06, 17 · Code Snippet
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There’s a neat way to debug how routing works in Angular 4. The router module has a built-in tracing support which can be activated by passing a flag when it’s added to the app routes, like so:

@NgModule({
imports: [ RouterModule.forRoot(routes, { enableTracing: true }) ],
exports: [ RouterModule ]
})
export class AppRoutingModule {}


Now, angular will log it’s routing decisions in the console.

Router Event: NavigationStart
platform-browser.es5.js:1028 NavigationStart(id: 1, url: '/')
platform-browser.es5.js:1028 NavigationStart {id: 1, url: "/"}
core.es5.js:3025 Angular is running in the development mode. Call enableProdMode() to enable the production mode.
platform-browser.es5.js:1037 Router Event: RoutesRecognized
platform-browser.es5.js:1028 RoutesRecognized(id: 1, url: '/', urlAfterRedirects: '/', state: Route(url:'', path:'') { Route(url:'', path:'') } )
platform-browser.es5.js:1028 RoutesRecognized {id: 1, url: "/", urlAfterRedirects: "/", state: RouterStateSnapshot}
platform-browser.es5.js:1037 Router Event: NavigationEnd
platform-browser.es5.js:1028 NavigationEnd(id: 1, url: '/', urlAfterRedirects: '/')
platform-browser.es5.js:1028 NavigationEnd {id: 1, url: "/", urlAfterRedirects: "/"}

If you enjoyed this article and want to learn more about Angular, check out our compendium of tutorials and articles from JS to 8.

AngularJS Self (programming language)

Published at DZone with permission of Yohan Liyanage, DZone MVB. See the original article here.

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