Recent questions tagged typescript

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typescript - Call a global variable inside module

I have a typescript file called Projects.ts that I want to reference a global variable declared in a bootstrap ... classes. Is it possible? See Question&Answers more detail:os...

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

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typescript - Angular @ViewChild() error: Expected 2 arguments, but got 1

When trying ViewChild I am getting the error. Error is "An argument for 'opts' was not provided." Both @ViewChild ... 2 arguments, but got 1. See Question&Answers more detail:os...

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

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typescript - Angular no provider for NameService

I've got a problem loading a class into an Angular component. I've been trying to solve it for a long time; ... me spot the issue with 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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typescript - How to cancel/unsubscribe all pending HTTP requests in Angular 4+

How to cancel/abort all pending HTTP requests in angular 4+. There is an unsubscribe method to cancel HTTP ... achieve this globally Any Ideas? See Question&Answers more detail:os...

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

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typescript - Angular 2 'component' is not a known element

I'm trying to use a component I created inside the AppModule in other modules. I get the following error ... declarations. 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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typescript - Angular 5 - Copy to clipboard

I am trying to implement an icon that when clicked will save a variable to the user's clipboard. I have ... user's clipboard in Angular 5? See Question&Answers more detail:os...

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

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typescript - Angular 4 HttpClient Query Parameters

I have been looking for a way to pass query parameters into an API call with the new HttpClientModule's ... pass in the query parameters? See Question&Answers more detail:os...

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

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typescript - Why this CustomExtract returns an different result from default Extract?

The code explains my question: type A = { a: number, } | null // Extract as defined in lib.es5.d ... technical definition and working of 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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typescript - Function property vs method

What practical differences are there between defining an interface method: interface Foo { bar(): void; } and defining a ... () => void; } ? See Question&Answers more detail:os...

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

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typescript - Angular - Make multiple HTTP calls sequentially

I need to make a function to make HTTP calls sequentially inorder to use response of one call into other one ... (this.registerAPI, body); } See Question&Answers more detail:os...

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

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typescript - How to get type of array items?

If I have a type type foo = Array<{ name: string; test: number; }>, would it be possible to get the ... , is there something similar for values? See Question&Answers more detail:os...

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

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typescript - How to test if two types are exactly the same

Here is my first attempt: (playground link) /** Trigger a compiler error when a value is _not_ an exact ... .com/gcanti/typelevel-ts/issues/39 See Question&Answers more detail:os...

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

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typescript - Angular2 - Share data between components using services

I have an object that I want to share between my components into an Angular2 app. Here is the source of ... providers setting and its worked ! See Question&Answers more detail:os...

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

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typescript - How to map over union array type?

I have the following structure: interface Test1 { number: number; } interface Test2 extends Test1 { text: string ... map over the test variable? See Question&Answers more detail:os...

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

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typescript - Angular2 handling http response

I just have a question regarding structuring and handling responses from http requests within a service. I am ... the login-form.component.ts See Question&Answers more detail:os...

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

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typescript - Integrating Material Design Lite with Angular2

I have a small problem in integrating a meterial design (http://www.getmdl.io/) in ng2 Can you ... , encapsulation:ViewEncapsulation.None, }) See Question&Answers more detail:os...

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

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typescript - Select based on enum in Angular2

I have this enum (I'm using TypeScript) : export enum CountryCodeEnum { France = 1, Belgium = 2 } I would like ... /select> How can I do 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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typescript - Styles in component for D3.js do not show in angular 2

I am using Angular 2 and D3.js. I want to show a red rectangle. It only works if I put styles in the style.css ... ("width", x.rangeBand()); } } See Question&Answers more detail:os...

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

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typescript - Angular 2 View will not update after variable change in subscribe

I have a problem where my view will not change when I update my variable in my observable subscription. I am ... a response from my backend? See Question&Answers more detail:os...

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

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typescript - In Angular, What is 'pathmatch: full' and what effect does it have?

In here it is use pathmatch as full and when i delete this pathmatch it doesn't even load the app or run the ... ] }) 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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typescript - How can I listen for keypress event on the whole page?

I'm looking for a way to bind a function to my whole page (when a user presses a key, I want it to ... )="handleInput($event)" tabindex="1"> See Question&Answers more detail:os...

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

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496 views

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typescript - Angular2 - Http POST request parameters

I'm trying to make a POST request but i can't get it working: testRequest() { var body = 'username= ... : /api Params: username and password See Question&Answers more detail:os...

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

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360 views

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typescript - Angular 2 - How do I navigate to another route using this.router.parent.navigate('/about')?

Angular 2 - How do I navigate to another route using this.router.parent.navigate('/about')? It doesn't seem to work. I ... ('/about'); }); } } See Question&Answers more detail:os...

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

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410 views

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typescript - Angular subscribe elegant

I'd like to ask about my subscribe method. I want to get my objects(employees) from firebase and do a loot ... allowed to write it like that? See Question&Answers more detail:os...

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

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341 views

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typescript - Specify method's type without converting the method to property

Let's say, I have a method that delegates its functionality to some method from external library, and I ... its full type LibDoStuffMethodType? See Question&Answers more detail:os...

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

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631 views

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typescript - Mapped Types: removing optional modifier

Given this code: interface Foo{ one?: string; two?: string; } type Foo2 = { [P in keyof Foo]: ... optional modifier when using mapped types? See Question&Answers more detail:os...

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

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457 views

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typescript - How to pass data to dialog of angular material 2

I am using dialog box of angular material2. I want to pass data to the opened component. Here is how I am ... class. Now How can I access that passed data? Question&Answers:os...

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

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335 views

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typescript - Angular - POST uploaded file

I'm using Angular, TypeScript to send a file, along with JSON Data to a server. Below is my code: ... remember in AngularJS (v1) you would use transformRequest. Question&Answers:os...

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

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