Recent questions tagged typescript

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typescript - Angular (5) httpclient observe and responseType: 'blob'

Context: I'm trying to download a binary file from a backend (that requires some data posted as json-body) and save it ... 2.4.2 webpack: 3.8.1 See Question&Answers more detail:os...

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

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typescript - Angular update object in object array

Say i have the following object array, lets name it itemArray; { "totalItems": 2, "items": [ { "id": 1, "name": " ... i}}"></label> </td> </tr> See Question&Answers more detail:os...

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

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typescript - Problem with Visual Studio Code using "react-jsx" as jsx value with create-react-app

I'm struggling with following "error" in VSCode : Argument for '--jsx' option must be: 'preserve', 'react- ... the issue no longer appears). See Question&Answers more detail:os...

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

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typescript - Difference between of "K extends keyof T" vs. directly using "keyof T"?

Is there any difference between the following typescript definitions: function prop<T, K extends keyof T>(obj: T, ... often used in the docs) See Question&Answers more detail:os...

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

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typescript - Angular 2 router examples + @Routes typing support

I am trying to find a concrete example on how to use the router in Angular 2. Furthermore the current ... does not support @Routes annotation. See Question&Answers more detail:os...

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

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typescript - ng-class in Angular2

I am developing a test application in angular 2 and I'm stuck with a problem of adding classes based on list ... of listed will work this 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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typescript - error TS6059: File is not under 'rootDir' .. 'rootDir' is expected to contain all source files

I am getting this fairly non-sensical tsc transpilation error: error TS6059: File '/Users/alex/codes/interos/teros ... still get the same error. See Question&Answers more detail:os...

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

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typescript - implement addClass and removeClass functionality in angular2

I have couple of buttons for ListView and GridView. For switching between these 2 buttons I had written ... click from angular2 template? See Question&Answers more detail:os...

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

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typescript - Angular 6 add items into Observable

I'm new to Angular 6 and i'm having trouble on how i can add objects into observable in a service. i ... string, contactPhone: string){ } } See Question&Answers more detail:os...

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

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typescript - How to implement class constants?

In TypeScript, the const keyword cannot be used to declare class properties. Doing so causes the compiler to an ... 've accepted David's answer See Question&Answers more detail:os...

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

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typescript - Angular: Pass data from Material Dialog to component, which didn't open the dialog

I have a network.component which opens my dialog send-tx-dialog.component. The user fills the send-tx-dialog with ... : Transaction[] = [ ]; See Question&Answers more detail:os...

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

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typescript - Integer (literal) union type, with NaN as valid return value

I have a (comparison) function with an union return type. It can return -1, 1 or 0. However, I need a special ... ? Is there a way to use NaN? See Question&Answers more detail:os...

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

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typescript - Allow implicit any only for definition files

I am using TypeScript with the "noImplicitAny": true option set in my tsconfig.json. I am using typings to manage ... the path or the file type? See Question&Answers more detail:os...

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

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typescript - angular 4.3x dynamic http interceptor

I followed this article from medium to create a http interceptor which lets me add headers to each http ... dynamically adjust the interceptor? See Question&Answers more detail:os...

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

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typescript - how to extend service with dependencies in angular 2

I have a parent service which has some dependencies like @Injectable() export class ParentService{ constructor(private http: ... .get() } } See Question&Answers more detail:os...

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

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typescript - fullcalendar & Angular 5

(New New Edit) Rustam has helped Arshaw build an Angular module that is awesome! Check it out. Works with Angular 7 ... ' is used as a fallback. See Question&Answers more detail:os...

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

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typescript - Angular - @Input and @Output vs. Injectable Service

I'm asking myself where are the differences between @Input/@Output in parent-/childcomponents and using services ... very confusing and clunky. See Question&Answers more detail:os...

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

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typescript - 'R' could be instantiated with an arbitrary type which could be unrelated to 'Response<Command>'

Ok, so I'm trying to implement a simple "Command Bus" in TypeScript, but I'm tripping up over generics and ... how to resolve this double cast. See Question&Answers more detail:os...

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

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typescript - Custom input and output on same name in Angular2 2 way binding

I know how to fix my component using a different name for the output value of this component. let me ... not supported on custom components? See Question&Answers more detail:os...

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

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typescript - Difference between index signature and Record for empty object?

I cannot figure out the difference between index signatures and record types. Could someone explain the differences and when ... : string} = {} See Question&Answers more detail:os...

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

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typescript - Angular2 rxjs missing observable.interval method

I'm trying to use the interval method of an observable but I keep getting the error Property ' ... "rxjs/observable/IntervalObservable"; See Question&Answers more detail:os...

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

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typescript - parameter implicitly has an 'any' type

I'm using visual studio code for a typescript project, where I use some 3rd party npm js libraries. Some of ... I prevent this from happening? See Question&Answers more detail:os...

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

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typescript - How to pass observable value to @Input() Angular 4

I am new to angular and I have the following situation which is I have a service getAnswers():Observable<AnswerBase ... . Thank you very much! See Question&Answers more detail:os...

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

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typescript - How do you specify that a class property is an integer?

I'm experimenting with TypeScript, and in the process of creating a class with an ID field that should be ... comment of some particular format? See Question&Answers more detail:os...

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

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typescript - How to tackle creating complex form with lots of custom components?

Let's say that my generated html from angular2 app looks like this: <app> <form [formGroup]="myForm" ... forms spanning one component/template. See Question&Answers more detail:os...

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

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typescript - Use angular2 with visual studio

Has anyone gotten Angular2 (beta) to work in Visual Studio? I am using Visual Studio 2015 with update 1 and I ... that is used in the tutorials. See Question&Answers more detail:os...

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

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typescript - Angular 6 - Passing messages via service to from component to message component

I am trying out how to pass a message from app.component.ts to be displayed in messageComponent.ts on app.component. ... } How can I do this? See Question&Answers more detail:os...

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

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typescript - What is the difference between `declare namespace` and `declare module`

After reading this manual and this quote: It's important to note that in TypeScript 1.5, the nomenclature has ... play here as I understand. See Question&Answers more detail:os...

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

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