Recent questions tagged Angular

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angular - How to get all route params/data

Given a route config { path: '/root/:rootId', children: [{ path: '/child1/:child1Id', children: [{ ... be much appreciated. Thanks in advance See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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angular - Angular2: *ngFor does not update when array is updated

I have an array of objects (let's call it arr). In one of my component's inputs in the (change) ... I tried NgZone and markForCheck() too. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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943 views

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angular - Stripping all comments and console.logs with ng build --prod, possible?

I am using MEAN, Angular 2, Node/Express, Angular-CLI and ng build --prod to build my app and I have ... thought of doing it manually is scary! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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angular - Uncaught (in promise): cordova_not_available in Ionic 2

When I'm running my Ionic app with ionic serve -l command, get following error message: Runtime Error Uncaught ( ... didn't solve the problem. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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837 views

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angular - Navigating to the same route not refreshing the component?

I've upgraded to use the new Angular 2 router from router-deprecated and some behavior has changed. The page I' ... -alpha.8 of @angular/router. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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993 views

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angular - How to mock Pipe when testing Component

Currently I am overriding providers to use mocked services like this: beforeEach(inject([TestComponentBuilder], (tcb: ... both didn't work. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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849 views

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angular - Limit to 2 decimal places with a simple pipe

I have found an example which limits a number to 2 decimal places AND turns the figure into a currency ... same without applying a currency? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - File 'app/hero.ts' is not a module error in the console, where to store interfaces files in directory structure with angular2?

I am doing the angular2 tutorial at this address: https://angular.io/docs/ts/latest/tutorial/toh-pt3.html I have ... the code in a hero folder? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - Angular2: Using routes, how to display the navigation bar after successfully logged in?

I'm trying to show the navigation bar, once the user successfully do. For example: How To Change "showMenu" ... the best way to solve it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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angular - How to Include JS file in ionic 3

Im looking for a way to access a variable from external js file which i included in assets/data folder below ... my js variable in typescript ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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737 views

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angular 5 template forms detect change of form validity status

are reactive forms the way to go in order to have a component that can listen for changes in the validity status of ... doc I did not find a way See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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angular - Router getCurrentNavigation always returns null

In the latest version of Angular 7.2.6, I'm trying to pass data in router itself this.router. ... - getCurrentNavigation Angular Docs - state See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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795 views

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angular - What is the difference between createEmbeddedView and createComponent?

I am confused between use cases of createEmbeddedView and createComponent, i.e when to use which one. Please ... "dynamic creation scenario". See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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819 views

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angular - Angular2 email validation

I am new in learning Angular2, and I want to make a validation form that verifies emails after a RegEx pattern. My code ... </div> </div> </div> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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971 views

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angular - "rxjs" observable.throw is not a function - Angular4

I've been learning Angular 4 and everything was going smoothly until I tried to implement catch handling in a ... /src/services/post.service.ts See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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823 views

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angular - APP_INITIALIZER raises "Cannot instantiate cyclic dependency! ApplicationRef_" when used with a custom Http provider that is redirecting

I am using a custom Http provider to handle API authentication error. In my CustomHttp, I need ... /github.com/haia212/AngularErrorTestProject See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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893 views

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angular - angular2 submit form by pressing enter without submit button

Is it possible to submit a form that does not have submit button (by pressing enter) example : <form [ngFormModel ... ngControl="xxxxx"/> </form See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.5k views

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angular - How to return a value from an EventEmitter function?

I got this function in my core component: isValid(value: any) { // Do some stuff and return something ... value from the EventEmitter function? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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851 views

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angular - why *ngIf doesnt'work with ng-template?

I have a condition in the template as follows: <ng-container> <p *ngFor="let seat of InfoDetails?.seatInfo"> ... . what is the issue here? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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angular - ngx-bootstrap modal: How to get a return value from a modal?

In my Angular 4 app, let's assume that I'm inside a service. At some point, I want to ask the user for a ... from a modal, so I leave it open. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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832 views

1 answer

angular - How do you use @Input with components created with a ComponentFactoryResolver?

Is there a method that can be used to define an @Input property on an Angular 2 component that's created dynamically? ... d be happy to add it. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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angular - 'router-outlet' is not a known element

I have a mvc 5 project with a angular frontend . I wanted to add routing as described in this tutorial https:// ... title = 'app Loaded'; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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771 views

1 answer

angular - Host binding and Host listening

How to use the host listener and host binding in angular 2? I tried like the below for host listener, but ... AppComponent { constructor(){ } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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897 views

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angular - Share Component between 2 modules

I'm trying to include a Component in 2 modules (parent and child) but getting various errors in the process ... directive imported by module }) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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angular - *ngIf with multiple async pipe variables

Been trying to combine two observables into one *ngIf and show the user interface when both have emitted. Take ... checks {{userLanguage?.user}} See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.5k views

1 answer

angular - Form control valueChanges gives the previous value

I have a form control with name 'question1' within the form object parentForm and I have subscribed to it ... .valueChanges, not my requirement. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.8k views

1 answer

angular - Angular2 *ngIf check object array length in template

Refered to https://angular.io/docs/ts/latest/guide/displaying-data.html and stack How to check empty object in ... Any help would be great. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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847 views

1 answer

angular - How to display a JSON representation and not [Object Object] on the screen

I am making an AngularJS 2 application with the beta version. I want to show a JSON representation of an object ... to display those as JSON? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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