angular8

问题 After Angular update all lazy-loaded modules return warning: Error: [path/to/module/module-name.ts] is missing from the TypeScript compilation. Please make sure it is in your tsconfig via the 'files' or 'include' property. My function which returns modules array: export function manifests(prefix = '') { return [ { loadChildren: () => import(prefix + '/path/to/a.module').then(m => m.AModule), path: 'a', }, { loadChildren: () => import(prefix + '/path/to/b.module').then(m => m.BModule), path:

问题 I'm new to Angular. I have a button that every time I click it, it creates a component dynamically. I need each component to have a button or something that can destroy that component specifically. I have a function in the dynamic component that when I click on it, that component must be closed, but I don't know how to pass it to the function of the typescript file.Please help me. app.component.ts import { Component, OnInit, ComponentFactoryResolver, ViewChild, Input,ComponentRef

问题 What's the difference between ViewChild and ControlValueAccessor in Angular? Seems both of them can access child components, directives, DOM. So curious about the differences in usage, can one do something the other cannot do? 回答1: ControlValueAccesor is for making a custom form control . By steps, a FormControl can store anything, even an object. Imagine two different FormGroups form1=new FormGroup({ name:new FormControl('name') direcction:new FormControl({address:'address',cp:'cp'}) })

问题 What's the difference between ViewChild and ControlValueAccessor in Angular? Seems both of them can access child components, directives, DOM. So curious about the differences in usage, can one do something the other cannot do? 回答1: ControlValueAccesor is for making a custom form control . By steps, a FormControl can store anything, even an object. Imagine two different FormGroups form1=new FormGroup({ name:new FormControl('name') direcction:new FormControl({address:'address',cp:'cp'}) })

问题 What's the difference between ViewChild and ControlValueAccessor in Angular? Seems both of them can access child components, directives, DOM. So curious about the differences in usage, can one do something the other cannot do? 回答1: ControlValueAccesor is for making a custom form control . By steps, a FormControl can store anything, even an object. Imagine two different FormGroups form1=new FormGroup({ name:new FormControl('name') direcction:new FormControl({address:'address',cp:'cp'}) })

问题 What's the difference between ViewChild and ControlValueAccessor in Angular? Seems both of them can access child components, directives, DOM. So curious about the differences in usage, can one do something the other cannot do? 回答1: ControlValueAccesor is for making a custom form control . By steps, a FormControl can store anything, even an object. Imagine two different FormGroups form1=new FormGroup({ name:new FormControl('name') direcction:new FormControl({address:'address',cp:'cp'}) })

问题 What's the difference between ViewChild and ControlValueAccessor in Angular? Seems both of them can access child components, directives, DOM. So curious about the differences in usage, can one do something the other cannot do? 回答1: ControlValueAccesor is for making a custom form control . By steps, a FormControl can store anything, even an object. Imagine two different FormGroups form1=new FormGroup({ name:new FormControl('name') direcction:new FormControl({address:'address',cp:'cp'}) })

问题 I'm new to Angular and I'm having an issue. I'm creating an app with several sibling components. When I update a value in one component other components don't update. I know that to resolve this issue I should use behaviour subject . But how do I implement it with my service, the components and all the templates? Here is my code - ---------------------- My service --------------------------- //import @Injectable() export class CoachService { apiURL = environment.apiURL; constructor(private

问题 I have an intercept that listens requests/responses. I have tried to run spinner only if requests comes more then 1 seconds: @Injectable() export class LoadingInterceptor implements HttpInterceptor { private requests: HttpRequest<any>[] = []; constructor(private spinnerService: SpinnerService) {} intercept( req: HttpRequest<any>, next: HttpHandler ): Observable<HttpEvent<any>> { this.requests.push(req); this.spinnerService.isLoading.next(true); return new Observable((observer) => { next

问题 I have an intercept that listens requests/responses. I have tried to run spinner only if requests comes more then 1 seconds: @Injectable() export class LoadingInterceptor implements HttpInterceptor { private requests: HttpRequest<any>[] = []; constructor(private spinnerService: SpinnerService) {} intercept( req: HttpRequest<any>, next: HttpHandler ): Observable<HttpEvent<any>> { this.requests.push(req); this.spinnerService.isLoading.next(true); return new Observable((observer) => { next