Advertisements I have an interface like below export type CameraProps = Omit<React.HTMLProps<HTMLVideoElement>, “ref”> & { audio?: boolean; audioConstraints?: MediaStreamConstraints[“audio”]; mirrored?: boolean; screenshotFormat?: “image/webp” | “image/png” | “image/jpeg”; //between 0 & 1 screenshotQuality?: number; videoConstraints?: MediaStreamConstraints[“video”]; fullScreenRecord?: boolean; screenshotDimensions?: ScreenshotDimensions; setImageSrc?: Dispatch<SetStateAction<string>>; overlay?: boolean; } when I use pick to pick one of this property like… Read More Difference between bracket notation property access and Pick utility in TypeScript

Advertisements I’m having some trouble with implementing an interface on a "non-generic" child class, that derives from a generic base class: public class Parent<T> where T : struct, Enum { } public class Child : Parent<MyEnum> { } interface ISomeInterface<T> where T : struct, Enum { void SomeMethod(Parent<T> parent); } class SomeClass : ISomeInterface<MyEnum> {… Read More Problem with generic base class and not-generic child class in an interface

Advertisements Consider this code: IAppStateProps.ts: import {INoteProps} from "./INoteProps"; export interface IAppStateProps { notesData: INoteProps[]; } then use it here: useAppState.ts: import {INoteProps} from "./interfaces/INoteProps"; import {IAppStateProps} from "./interfaces/IAppStateProps"; export const useAppState = (): IAppStateProps => { const [notesData, setNotesData] = useState<INoteProps[]>([]); …more code return { notesData } }; My question is, since I defined… Read More Is it necessary to define type again in useState if an interface is already used?

Advertisements I have a simple question even though I can’t answer it myself. I have a class which is my Api class with a single which expect a string query parameeter: public Single<List<Products>> searchProducts(){ return api.searchProducts(); } and I have a Activity class with the data that I need which is searchEt: String searchData =… Read More How to pass a string between classes

Advertisements i think i have a common probelm but i dont know which programming pattern solves it. I have a class that sends packages via Udp. udpSender has a a function sendPaypload() I also have a tcpSender class that also has a function sendPayload() At last i have a class executor with many many functions… Read More Inheritance and function selection

Advertisements I have this definition of an abstract class: public abstract class Game<T> : IGame<T> where T : IGameItem { public Guid Id { get; set; } = Guid.NewGuid(); protected List<T> GameItems { get; set; } = new(); public IReadOnlyList<T> Items => GameItems.AsReadOnly(); public void AddGameItem(T gameItem) { if(gameItem is null) { throw new ArgumentNullException(nameof(gameItem));… Read More Problem with generic interfaces and inheritance in C#

Advertisements I have an array of strings that has to match an interface properties names export interface MyType1 { propName1: number; propName2: string; propNameX: number; } tableColumns: string[] = [ ‘propName1’, ‘propName2’, ‘propNameX’ ]; Initially I was thinking to convert an interface to an array of strings but haven’t found a solution that works. So… Read More Check if array of strings matching all interface properties

Advertisements I can not define a lambda expression for an interface with multiple methods shown in the code below. interface Interface{ public void st1(); public String ra(String p); } I can define a lambda expression for a single-method interface. interface Interface{ public String ra(String p); } public static void main(String[] args) { Interface r =… Read More How can I define Lambda Expression for an interface with more than one method?