Recent questions tagged Angular

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angular - Angular2 - Validate and submit form from outside

I have a simple form that looks like this <form (ngSubmit)="save()" #documentEditForm="ngForm"> ... </form> ... is outside the <form> tags. 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 - What is the difference between component and directive?

I have just started working with Angular 2. I was wondering what are the differences between components and directives 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 - How do I navigate to a parent route from a child route?

My problem is quite classic. I have a private part of an application which is behind a login form. When the login ... idea how it can be done? 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 - Best way to import Observable from rxjs

In my angular 2 app I have a service that uses the Observable class from the rxjs library. import { ... having to import everything else? 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 - Typescript sleep

I'm developing a website in Angular 2 using Typescript and I was wondering if there was a way to implement ... it in Typescript. Many 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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angular - How to enable production mode?

I was reading related questions and I found this one, but my question is how can I switch from ... Can somebody answer this question? 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 - <ng-container> vs <template>

ng-container is mentioned in the official documentation but I'm still trying to understand how it works and what ... used in a custom directive? 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 extend / inherit components?

I would like to create extensions for some components already deployed in Angular 2, without having to rewrite them ... is quoted in the Issue. 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 - Iterate a Json Object with ngFor

I get from a webserver the following JSON String. [ {"name":"Joe Lincoln","age":"42","grade":"9","active":"1" ... {member.age}}</h3> </ion-item> 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 - Use nav.push with side menu in ionic 2

I try to make a little app in ionic2 to learn about it but I have a problem with navigation. In fact I have ... this type of page? 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 - Angular2: How is ngfor expanded

I know the textbook rules on that <div *ngFor="let foo of foobars">{{foo.stuff}}</div> turns into <template ... t put my finger on it. 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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angular - Does Angular2 use Web Components?

I've heard a lot of talk about the second coming of Angular and there seems to be a lot of ... Components without any extra integration? 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 - Can't bind to 'for' since it isn't a known native property angular2

I have to Create a list of checkboxes dynamically so i have used *ngFor to iterate the array of objects everything ... wrong here in my code ? 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 - Setting date field on reactive form

I have a component that uses two date fields, a start date & and end date. By default, I have my end date ... it either. 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 How to navigate to certain section of the page identified with an id attribute

How to navigate to certain section of the page identified with an id attribute? Example: I need to navigate ... such a potentially simple task 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 - @firebase/firestore: Firestore (5.0.4): Could not reach Cloud Firestore backend. Backend didn't respond within 10 seconds

I am working on an Angular 6 project. This is the error I get when I build with --prod flag, host and run. I' ... 5.0.4 angularfire2 5.0.0-rc.10 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 router.navigate refresh page

This is how the routes and component look like: routes.config export const routes: RouterConfig = [ { path: ' ... refresh? Here is the proof: 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 variable to define templateUrl in Angular2

I want the component to set the templateUrl with a variable, but it doesn't work. @Component({ selector: 'article ... isn't anywhere but here. 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/import http module?

I've been playing with Angular 2 Quickstart. How can I use/import http module in Angular 2? I've looked ... heard Angular 2 is somewhat modular. 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 load component dynamically using component name in angular2?

I am currently loading angular components dynamically in my application using following code. export class ... instead of type? 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 - What is the difference between production and development mode in Angular2?

For some reason, I have to run my app in production mode. What is the difference between those modes? 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 - Using Resolve In Angular2 Routes

In Angular 1 my config looks like this: $routeProvider .when("/news", { templateUrl: "newsView.html", controller ... to use resolve in 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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angular - The pipe ' ' could not be found angular2 custom pipe

I can't seem to fix this error. I have a search bar and an ngFor. I am trying to filter the array using a custom pipe ... , "zone.js": "^0.6.12" 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 - Apply a directive conditionally

I am using Material 2 to add md-raised-button. I want to apply this directive only if certain condition becomes ... . Here is a plunker link. 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 - FormControl Validation on blur

I'm looking at adding some basic email validation to check that the user has put in a correct email address ... , not an angularJS solution. 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 - What are all the valid selectors for ViewChild and ContentChild?

I'm looking for a comprehensive list of the valid selectors I can use to access child components / ... , @ViewChildren, and @ContentChildren? 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 switch layouts in Angular2

What is the best practices way of using two entirely different layouts in the same Angular2 application? For ... header, content and footer. 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 - <img>: Unsafe value used in a resource URL context

Since upgrading to the latest Angular 2 release candidate, my img tags: <img class='photo-img' [hidden]="! ... still get the same error message See Question&Answers more detail:os...

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

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