Recent questions tagged Angular

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angular - inject() must be called from an injection context

I am trying to export my Angular app as an npm module to be consumed by other applications, but am running ... would be appreciated, thank you. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - How to use MatPaginatorIntl?

I'm using MatPaginator component and I'm trying to figure out how to translate those labels (documentation isn't ... . What am I missing? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - Angular2 - SEO - how to manipulate the meta description

Search Results in google are displayed via TitleTag and the <meta name="description"..."/> Tag. The <title>- ... description for this route**"/> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - Property binding vs attribute interpolation

I have read an article about difference between property and attribute bindings. From what I understood, most of ... checkbox> Thanks in advance See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - Rxjs Retry with Delay function

I am trying to use retry with delay function, I expect function will call after 1000ms delay, but it doesnot, ... } and console result is : See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - origin 'http://localhost:4200' has been blocked by CORS policy in Angular7

I want to use of http://5.160.2.148:8091/api/trainTicketing/city/findAll rest for get cities in my angular ... in browser and postman. why ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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548 views

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angular - Angular2 - Focusing a textbox on component load

I am developing a component in Angular2 (Beta 8). The component has a textbox and a dropdown. I would like to set the ... </div> </form> </div> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - Angular2 Forms :Validations, ngControl, ngModel etc

Working on angular2 beta Forms. after alot of searching found nothing useful. hope here somebody help me. Basically i ... -to-forms-in-angular-2 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - Debug with Visual Studio Code not working

I'd like to be able to debug an Angular2 application with Visual Studio Code. Here's my environment: OS: Ubuntu ... another edit if I found why. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular ui - Cannot get textarea value in angularjs

Here is my plnkr: http://plnkr.co/edit/n8cRXwIpHJw3jUpL8PX5?p=preview You have to click on a li element and the ... not work? How to fix it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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538 views

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angular - Service is not being singleton for angular2 router lazy loading with loadChildren

Here is the pluker. https://plnkr.co/edit/tsNlmRth4mRzz0svGWLK?p=preview In which I have created two module with two ... me to solve this out. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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673 views

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angular - How to submit form to server in Angular2?

Now the submission has been caught by angular2 even with action= in the <form>. demo link: http://plnkr.co/edit/ ... this.name = 'Angular2' } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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740 views

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angular - How to declare a pipe globally to use in different modules?

I have a custom pipe named CurrConvertPipe import {Pipe, PipeTransform} from '@angular/core'; import { ... could not be found See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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angular - How do I override the style of primeng components?

I want to overright the style of primeng components as per component level not for whole app. Either I have ... correct approach for doing this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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741 views

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angular - Read a file and parse its content

I have file upload control which holds the selected file as below, <div class="Block"> <label id="lbl">File < ... Note: Type of file will be csv See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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angular 6 warning for using formControlName and ngModel

I recently upgraded the angular version to 6-rc. I got following warning It looks like you're using ngModel on ... as my data binding object. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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785 views

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angular - Angular2: child component access parent class variable/function

I have a variable in the parent component that might be changed by child, parent will be using this variable in the ... .push("4"); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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733 views

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angular - Proper way to restrict text input values (e.g. only numbers)

Is it possible to implement an input that allows to type only numbers inside without manual handling of event ... and validate it afterwards See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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937 views

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angular - How to return observable from subscribe

I'm trying to return an observable when I get a certain value in a subscriber, but I fail miserably. This is the code ... true; } }).first(); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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695 views

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angular - What is pipe for in RxJS?

I think I have the base concept, but there are some obscurities So in general this is how I use an ... those functions need different imports? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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877 views

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angular - Typescript dependency injection public vs private

What is the difference between injecting service with public and private.I see most of examples use private keyword ... : CarService) { } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - Open/Close sidenav from another component

I use angular (latest version) and angular material. There are 3 components: header.component, in which ... working sample with code stackblitz See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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angular - Pass parameter into route guard

I'm working on an app that has a lot of roles that I need to use guards to block nav to parts ... having a single parameterized type instead? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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671 views

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angular - NullInjectorError: No provider for AngularFirestore

I'm learning Angular looking for help in fixing the error: I'm following this link : https://github.com/ ... am getting the above error... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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677 views

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angular - Accessing firebase.storage() with AngularFire2 (Angular2 rc.5)

I am trying to access firebase.storage() on my project, with: "@angular": "2.0.0-rc.5" " ... with accessing database with angularfire2. Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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angular - Body of Http.DELETE request in Angular2

I'm trying to talk to a somewhat RESTful API from an Angular 2 frontend. To remove some item from a ... on this conundrum would be appreciated See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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615 views

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angular - ng2 - Difference between ng-container and ng-template tags

Can someone please illustrate the difference between using <ng-container> and <ng-template> elements? I could not ... each would greatly help. See Question&Answers more detail:os...

asked Oct 17, 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 check the length of an Observable array

In my Angular 2 component I have an Observable array list$: Observable<any[]>; In my Template I have <div ... check length of Observable array. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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