In this tutorial we are going to learn how we can to configure an exit guard in the Angular 2 Router. We are going to learn how to use a CanDeactivate route guard to ask the user if he really wants to exist the screen, giving the user to for example save data that was not yet pe...
CanDeactivate:在离开某个路由时检查,决定是否允许离开。例如,创建一个简单的 AuthGuard 守卫,确保用户登录后才能访问某个路由。生成守卫 使用CLI 生成守卫:ng generate guard auth实现AuthGuard 的逻辑 在生成的 auth.guard.ts 文件中编写认证逻辑:import { Injectable } from '@angular/core'; import { CanActivate...
In this tutorial we are going to learn how we can to configure an exit guard in the Angular 2 Router. We are going to learn how to use a CanDeactivate route guard to ask the user if he really wants to exist the screen, giving the user to for example save data that was not yet pe...
canDeactivate(): boolean { // 清除本地存储中的数据 localStorage.clear(); return true; } } 在上述示例代码中,定义了一个名为LocalStorageClearGuard的守卫,实现了CanDeactivate接口,并在canDeactivate方法中执行清除本地存储的操作。然后,在路由配置中使用该守卫来处理路由变化时的清除操作。
That concludes the example forCanActivateroute guards. Route Guard TheCanDeactivateguard has a slight difference in its implementation in that we need to provide the component to be deactivated. This allows us to probe the component in question to see if there’s something like unsaved changes. ...
UnsavedChangesGuard的完整实现如下所示: @Injectable() export class UnsavedChangesGuard implements CanDeactivate<FirstViewComponent> { constructor(private confirmationService: ConfirmationService) { } canDeactivate(component: FirstViewComponent) { // Allow navigation if the form is unchanged if (!component.dir...
Router Error Handling: Angular's router provides hooks like `resolve` and route guards (`CanActivate`, `CanDeactivate`) to handle routing-related errors. Error Interceptors: Use HTTP interceptors to intercept HTTP errors and take appropriate actions. 22. What are Pipes and how are they used?
import { AuthCanActivateGuard, RequireSaveCanDeactivateGuard } from 'src/app/_guards'; An example application with a _guards directory would look as follows: Organize Feature-Specific Route Guards If you have guards that are only used in a particular FeatureRoutes array, then store these routes ...
28a51cc5e fix add required type to CanDeactivate guard (#29004) @angular/build CommitTypeDescription f26e1b462 fix add timeout to route extraction ab4e77c75 fix allow .json file replacements with application builds 06690d87e fix apply define option to JavaScript from scripts option 775e6f780 fi...
e4309d57d8 fix correct type of nextState parameter in canDeactivate (#48038) 9baefd085f fix Ensure renavigating in component init works with enabledBlocking (#48063) fa5528fb5f fix restore 'history.state' on popstate even if navigationId missing (#48033) ## Special Thanks Alan Agius, An...