angular/angular
0 Commits in this Release
Could not find any commits associated with this release.
Browse Other Releases
Top Contributors in 19.0.0
Could not determine top contributors for this release.
Directory Browser for 19.0.0
We haven't yet finished calculating and confirming the files and directories changed in this release. Please check back soon.
Release Notes Published
<a name="19.0.0"></a>
19.0.0 (2024-11-19)
Explore Angular v19 with a blog post from the Angular team: https://blog.angular.dev/meet-angular-v19-7b29dfd05b84
Breaking Changes
compiler
this.fooproperty reads no longer refer to template context variables. If you intended to read the template variable, do not usethis.. ### core- Angular directives, components and pipes are now standalone by default.
- Specify
standalone: falsefor declarations that are currently declared in@NgModules. ng updatefor v19 will take care of this automatically.
- Specify
- TypeScript versions less than 5.5 are no longer supported.
Timing changes for
effectAPI (in developer preview):- effects which are triggered outside of change detection run as part of the change detection process instead of as a microtask. Depending on the specifics of application/test setup, this can result in them executing earlier or later (or requiring additional test steps to trigger; see below examples).
- effects which are triggered during change detection (e.g. by input signals) run earlier, before the component's template.
ExperimentalPendingTaskshas been renamed toPendingTasks.The
autoDetectfeature ofComponentFixturewill now attach the fixture to theApplicationRef. As a result, errors during automatic change detection of the fixture be reported to theErrorHandler. This change may cause custom error handlers to observe new failures that were previously unreported.createComponentwill now render default fallback with emptyprojectableNodes.- When passing an empty array to
projectableNodesin thecreateComponentAPI, the default fallback content of theng-contentwill be rendered if present. To prevent rendering the default content, passdocument.createTextNode('')as aprojectableNode.
- When passing an empty array to
// The first ng-content will render the default fallback content if present
createComponent(MyComponent. { projectableNodes: [[], [secondNode]] });
// To prevent projecting the default fallback content:
createComponent(MyComponent. { projectableNodes: [[document.createTextNode('')], [secondNode]] });
Errors that are thrown during
ApplicationRef.tickwill now be rethrown when usingTestBed. These errors should be resolved by ensuring the test environment is set up correctly to complete change detection successfully. There are two alternatives to catch the errors:- Instead of waiting for automatic change detection to happen, trigger
it synchronously and expect the error. For example, a jasmine test
could write
expect(() => TestBed.inject(ApplicationRef).tick()).toThrow() TestBedwill reject any outstandingComponentFixture.whenStablepromises. A jasmine test, for example, could writeexpectAsync(fixture.whenStable()).toBeRejected().
- Instead of waiting for automatic change detection to happen, trigger
it synchronously and expect the error. For example, a jasmine test
could write
As a last resort, you can configure errors to not be rethrown by
setting rethrowApplicationErrors to false in TestBed.configureTestingModule.
- The timers that are used for zone coalescing and hybrid
mode scheduling (which schedules an application state synchronization
when changes happen outside the Angular zone) will now run in the zone
above Angular rather than the root zone. This will mostly affect tests
which use fakeAsync: these timers will now be visible to fakeAsync
and can be affected by tick or flush.
- The deprecated factories property in KeyValueDiffers has been removed.
elements
- as part of switching away from custom CD behavior to the hybrid scheduler, timing of change detection around custom elements has changed subtly. These changes make elements more efficient, but can cause tests which encoded assumptions about how or when elements would be checked to require updating. ### localize
- The
nameoption in theng add@localize`schematic has been removed in favor of theproject` option. ### platform-browser - The deprecated
BrowserModule.withServerTransitionmethod has been removed. Please use theAPP_IDDI token to set the application id instead. ### router - The
Router.errorHandlerproperty has been removed. Adding an error handler should be configured in eitherwithNavigationErrorHandlerwithprovideRouteror theerrorHandlerproperty in the extra options ofRouterModule.forRoot. In addition, the error handler cannot be used to change the return value of the router navigation promise or prevent it from rejecting. Instead, if you want to prevent the promise from rejecting, useresolveNavigationPromiseOnError. - The return type of the
Resolveinterface now includesRedirectCommand.
common
| Commit | Description |
| -- | -- |
| 
compiler
| Commit | Description |
| -- | -- |
| 
typeof keyword in template expressions. (#58183) |
| 
this.a should always refer to class property a (#55183) |
| 
:host parsing in pseudo-selectors (#58681) |
| 
:host:host-context(.foo) (#58681) |
| 
compiler-cli
| Commit | Description |
| -- | -- |
| 
core
| Commit | Description |
| -- | -- |
| 
standalone: false. (#57643) |
| 
run method on ExperimentalPendingTasks (#56546) |
| 
undefined without needing to include it in the type argument of input (#57621) |
| 
allowSignalWrites (#57874) |
| 
resource() API for async dependencies (#58255) |
| 
rxResource() (#58255) |
| 
standalone to true (#58169) |
| 
afterRenderEffect (#57549) |
| 
outputFromObservable & outputToObservable to stable. (#58214) |
| 
takeUntilDestroyed to stable. (#58200) |
| 
@let syntax (#57813) |
| 
ViewContext is retained after closure minification (#57903) |
| 
None for empty component styles (#57130) |
| 
factories Property in KeyValueDiffers (#58064) |
elements
| Commit | Description |
| -- | -- |
| 
output()-shaped outputs (#57535) |
| 
ComponentRef.setInput & remove custom scheduler (#56728) |
forms
| Commit | Description |
| -- | -- |
| 
http
| Commit | Description |
| -- | -- |
| 
withRequestsMadeViaParent to stable. (#58221) |
| 
language-service
| Commit | Description |
| -- | -- |
| 
@Input to signal-input (#57214) |
| 
localize
| Commit | Description |
| -- | -- |
| 
name option. (#58063) |
migrations
| Commit | Description |
| -- | -- |
| 
ng generate schematic (#57805) |
| 
platform-browser
| Commit | Description |
| -- | -- |
| 
BrowserModule.withServerTransition method (#58062) |
platform-server
| Commit | Description |
| -- | -- |
| 
PlatformRef when error happens during the bootstrap() phase (#58112) |
router
| Commit | Description |
| -- | -- |
| 
routerOutletData input to RouterOutlet directive (#57051) |
| 
injector on OutletContext (#58343) |
| 
service-worker
| Commit | Description |
| -- | -- |
| 
