Recent questions tagged angular

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angular - What is data-bound properties?

I am trying to understand OnInit functionality in angular2 and read the documentation: Description Implement this interface ... does it mean? 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 - Bootstrap Navbar not working correctly: AngularCLI

I included bootstrap into my angularcli project but when I try to include a navbar none of the elements are working ... > </div> </nav> See Question&Answers more detail:os...

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

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568 views

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angular - How to angular2 post JSON data and files In same request

I want to implement post file and Json data in the same request . below is the upload file code : upload(url ... (url, JSON.stringify(data)). 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: error at startup of the app "http://localhost:3000/traceur 404 (Not Found)"

I have a brand new installation of Angular (rc1). I think I have just created the usual 'Hello something' app but ... .config(config); })(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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angular - Angular2: Property 'controls' does not exist on type 'AbstractControl'. Error when accessing .control of an object within a formarray thru an index

I'm trying to push another formbuilder within a formarray but it gives me an error since I think there are no ... Validators.required], }) ); See Question&Answers more detail:os...

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

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561 views

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angular - Get validators present in FormGroup/FormControl

I'm using Material 2 in my app, but in this question I want to solve a problem specifically with Input. As ... clear enough. 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 - No provider for ChildrenOutletContexts (injectionError)

I am getting the following error when using Angular CLI to generate a routing module for my application: ERROR ... the reason of this 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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angular - Ionic2, inject NavController to Injectable Service

I have a problem with Injectable Service in Angular2 using Ionic2 framework. My service looks like this: import ... [ViewStackController], {}); 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 - Set-cookie in response not set for Angular2 post request

When I make a put request in Angular2, I receive the expected set-cookie in the response. However my browser ( ... how to solve this problem? See Question&Answers more detail:os...

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

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993 views

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angular - Directive to disable Cut, Copy and Paste function for textbox using Angular2

I am using Angular2 to restrict the copy and paste in textbox. But how do i write a custom directive, so ... .preventDefault()"></ion-input> See Question&Answers more detail:os...

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

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634 views

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angular - How to get DOM elements by class, id, selectors and properties

How can I get DOM elements by class, id, selectors (div > .my-i) and properties like in jQuery? For example: <div ... my-i" What's the best way? See Question&Answers more detail:os...

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

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969 views

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angular - Material table datasource filter with column value

How can I filter the material data table with specific column ? public dataSource; this.dataSource = new ... no data is matched. See Question&Answers more detail:os...

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

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813 views

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angular - console.log not working in Angular2 Component (Typescript)

I am relatively new to both Angular2 and typescript. Since typescript is a superset of javascript, I'd expect ... anything that I am 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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470 views

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angular - Template parse errors: 'md-form-field' is not a known element

I am using Angular 4 and Angular Material 2. For the following code : <form> <md-form-field> <input mdInput [ ... }) export class AppModule { } See Question&Answers more detail:os...

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

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564 views

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angular - What is the difference between [ngFor] and [ngForOf] in angular2?

As per my understanding, Both are doing the same functions. But, ngFor would be works like as collections?. ... ) about ngFor and ngForOf? 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's the difference between BrowserAnimationsModule and NoopAnimationsModule?

With the new Angular-Material release, you need to add a module for Angular-Animations. You can choose between ... between the two modules? See Question&Answers more detail:os...

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

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816 views

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angular - forkJoin is deprecated: resultSelector is deprecated, pipe to map instead

I'm working on an Angular 6 project. Running ng lint gives the following Warning: "forkJoin is deprecated: ... deprecated, pipe to map 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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774 views

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angular - Getting an error: "Has no exported member AngularFire, AuthProviders, AUthMethods, FirebaseListObservable" in AngularFire2?

I am new to Angular 4, so I am creating a firebase chat app with Angular 4, and then when I ... , AUthMethods, FirebaseListObservable. 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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608 views

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angular - Angular2 load configuration from backend on startup

In my Angular2 app, I'm trying to load configurations from backend on bootstrap using HTTP so that I can use the ... config.get('url'); } } See Question&Answers more detail:os...

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

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594 views

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angular - Property '_body' does not exist on type 'Response'

I am using Angular 2 and getting this error when using an observable Property '_body' does not exist on ... Any help is greatly 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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635 views

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angular - Trouble with CORS Policy and .NET Core 3.1

I'm not sure what I'm missing, but can't seem to get my CORS Policy working with .NET Core 3.1 and ... -headers-with-dot-net-core-3-5c9dfc664785 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 - EmptyError: no elements in sequence

I'm upgrading my Angular2 app from 2.0.0 to 2.3.0, and I'm running into the following error. Any ideas ... a loss and would appreciate any 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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529 views

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angular - Angular2 Styles in a Directive

In the given examples of Attribute directives (i.e. a directive to add appearance/behaviour), we have a ... emulated/default if that matters? See Question&Answers more detail:os...

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

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999 views

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angular - Dynamic routerLink value from ngFor item giving error "Got interpolation ({{}}) where expression was expected"

I'm trying to set the routerLink value in a directive based on a dynamic set of items from the component. But an error ... </a> </nav> </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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668 views

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angular - Do I need to `complete()` takeUntil Subject inside ngOnDestroy?

To avoid Observable memory leaks inside Components, I am using takeUntil() operator before subscribing to Observable. ... in my components. See Question&Answers more detail:os...

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

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839 views

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angular - Angular2 doesn't work Custom Reuse Strategy with Lazy module loading

I tried to use custom reuse strategy in my angular2 project, but I found it doesn't work with lazy module ... . Thank you for helping me. See Question&Answers more detail:os...

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

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590 views

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angular - How to detect bootstrap datetimepicker change events within angular2

I am using the bootstrap datetimepicker in angular 2 https://eonasdan.github.io/bootstrap-datetimepicker/ In my ... selector to change 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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759 views

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angular - After adding [(ngModel)] to a radio button group, the default [checked] no longer works

I'm working on a small reusable Component which styles radio buttons and emits the selected values. import { Component, ... how can I 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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