From 1b38b413dec6ba3559c97c105e8edcd88cef6081 Mon Sep 17 00:00:00 2001
From: George Kalpakas Defines a module that contains components, directives, pipes, and providers. Sets up two-way data binding. Equivalent to: Creates a local variable An SVG snippet template needs an An
-
+@NgModule({ declarations: ..., imports: ...,
exports: ..., providers: ..., bootstrap: ...})
class MyModule {}@NgModule({
declarations: ..., imports: ..., exports: ...,
providers: ..., bootstrap: ...
})
class MyModule {}
@@ -91,7 +91,7 @@ is available to declarations
of this module.
<my-cmp [title]="name" (titleChange)="name=$event">
-
+<video #movieplayer ...>
<button (click)="movieplayer.play()">
</video><video #movieplayer ...></video>
<button (click)="movieplayer.play()">Play</button>movieplayer
that provides access to the video
element instance in data-binding and event-binding expressions in the current template.
@@ -112,7 +112,7 @@ is available to declarations
of this module.
svg:
prefix on its root element to disambiguate the SVG element from an HTML component.
-
@@ -134,7 +134,7 @@ is available to
+<svg>
<rect x="0" y="0" width="100" height="100"/>
</svg><svg>
<rect x="0" y="0" width="100" height="100"/>
</svg><svg>
root element is detected as an SVG element automatically, without the prefix.declarations
of this module.
Turns the li element and its contents into a template, and uses that to instantiate a view for each item in list.
<div [ngSwitch]="conditionExpression">
<ng-template [ngSwitchCase]="case1Exp">...</ng-template>
<ng-template ngSwitchCase="case2LiteralString">...</ng-template>
<ng-template ngSwitchDefault>...</ng-template>
</div>
<div [ngSwitch]="conditionExpression">
<ng-template [ngSwitchCase]="case1Exp">...</ng-template>
<ng-template ngSwitchCase="case2LiteralString">...</ng-template>
<ng-template ngSwitchDefault>...</ng-template>
</div>
Conditionally swaps the contents of the div by selecting one of the embedded templates based on the current value of conditionExpression
.
@Directive
configuration applies to components as well
const routes: Routes = [
{ path: '', component: HomeComponent },
{ path: 'path/:routeParam', component: MyComponent },
{ path: 'staticPath', component: ... },
{ path: '**', component: ... },
{ path: 'oldPath', redirectTo: '/staticPath' },
{ path: ..., component: ..., data: { message: 'Custom' } }
]);
const routing = RouterModule.forRoot(routes);
const routes: Routes = [
{ path: '', component: HomeComponent },
{ path: 'path/:routeParam', component: MyComponent },
{ path: 'staticPath', component: ... },
{ path: '**', component: ... },
{ path: 'oldPath', redirectTo: '/staticPath' },
{ path: ..., component: ..., data: { message: 'Custom' } }
]);
const routing = RouterModule.forRoot(routes);
Configures routes for the application. Supports static, parameterized, redirect, and wildcard routes. Also supports custom route data and resolve.
@Directive
configuration applies to components as well
Marks the location to load the component of the active route.
<a routerLink="/path">
<a [routerLink]="[ '/path', routeParam ]">
<a [routerLink]="[ '/path', { matrixParam: 'value' } ]">
<a [routerLink]="[ '/path' ]" [queryParams]="{ page: 1 }">
<a [routerLink]="[ '/path' ]" fragment="anchor">
<a routerLink="/path">
<a [routerLink]="[ '/path', routeParam ]">
<a [routerLink]="[ '/path', { matrixParam: 'value' } ]">
<a [routerLink]="[ '/path' ]" [queryParams]="{ page: 1 }">
<a [routerLink]="[ '/path' ]" fragment="anchor">
Creates a link to a different view based on a route instruction consisting of a route path, required and optional parameters, query parameters, and a fragment. To navigate to a root route, use the /
prefix; for a child route, use the ./
prefix; for a sibling or parent, use the ../
prefix.
<a [routerLink]="[ '/path' ]" routerLinkActive="active">
<a [routerLink]="[ '/path' ]" routerLinkActive="active">
The provided classes are added to the element when the routerLink
becomes the current active route.
class CanActivateGuard implements CanActivate {
canActivate(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
): Observable<boolean|UrlTree>|Promise<boolean|UrlTree>|boolean|UrlTree { ... }
}
{ path: ..., canActivate: [CanActivateGuard] }
class CanActivateGuard implements CanActivate {
canActivate(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
): Observable<boolean|UrlTree>|Promise<boolean|UrlTree>|boolean|UrlTree { ... }
}
{ path: ..., canActivate: [CanActivateGuard] }
An interface for defining a class that the router should call first to determine if it should activate this component. Should return a boolean|UrlTree or an Observable/Promise that resolves to a boolean|UrlTree.
class CanDeactivateGuard implements CanDeactivate<T> {
canDeactivate(
component: T,
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
): Observable<boolean|UrlTree>|Promise<boolean|UrlTree>|boolean|UrlTree { ... }
}
{ path: ..., canDeactivate: [CanDeactivateGuard] }
class CanDeactivateGuard implements CanDeactivate<T> {
canDeactivate(
component: T,
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
): Observable<boolean|UrlTree>|Promise<boolean|UrlTree>|boolean|UrlTree { ... }
}
{ path: ..., canDeactivate: [CanDeactivateGuard] }
An interface for defining a class that the router should call first to determine if it should deactivate this component after a navigation. Should return a boolean|UrlTree or an Observable/Promise that resolves to a boolean|UrlTree.
class CanActivateChildGuard implements CanActivateChild {
canActivateChild(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
): Observable<boolean|UrlTree>|Promise<boolean|UrlTree>|boolean|UrlTree { ... }
}
{ path: ..., canActivateChild: [CanActivateGuard],
children: ... }
class CanActivateChildGuard implements CanActivateChild {
canActivateChild(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
): Observable<boolean|UrlTree>|Promise<boolean|UrlTree>|boolean|UrlTree { ... }
}
{ path: ..., canActivateChild: [CanActivateGuard],
children: ... }
An interface for defining a class that the router should call first to determine if it should activate the child route. Should return a boolean|UrlTree or an Observable/Promise that resolves to a boolean|UrlTree.
class ResolveGuard implements Resolve<T> {
resolve(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
): Observable<any>|Promise<any>|any { ... }
}
{ path: ..., resolve: [ResolveGuard] }
class ResolveGuard implements Resolve<T> {
resolve(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
): Observable<any>|Promise<any>|any { ... }
}
{ path: ..., resolve: [ResolveGuard] }
An interface for defining a class that the router should call first to resolve route data before rendering the route. Should return a value or an Observable/Promise that resolves to a value.
class CanLoadGuard implements CanLoad {
canLoad(
route: Route
): Observable<boolean|UrlTree>|Promise<boolean|UrlTree>|boolean|UrlTree { ... }
}
{ path: ..., canLoad: [CanLoadGuard], loadChildren: ... }
class CanLoadGuard implements CanLoad {
canLoad(
route: Route
): Observable<boolean|UrlTree>|Promise<boolean|UrlTree>|boolean|UrlTree { ... }
}
{ path: ..., canLoad: [CanLoadGuard], loadChildren: ... }
An interface for defining a class that the router should call first to check if the lazy loaded module should be loaded. Should return a boolean|UrlTree or an Observable/Promise that resolves to a boolean|UrlTree.