Ensure Exhaustiveness and Correctness of Object based on Const Array of Objects

Given the following ROUTES: const ROUTES = [ { name: "Login", path: "/login", id: "login" }, { name: "Registration", path: "/registration", id: "registration" }, { name: "Settings", path: "/settings", id: "settings" }, ] as const; How can I create a type (SomeType) for which: every id is used as a key every path is used… Read More Ensure Exhaustiveness and Correctness of Object based on Const Array of Objects

Avoid repetitive typescript definitions

Say I have these TS definitions: export type SearchStackParamList = { SearchScreen: undefined; Restaurant: undefined; }; export type SearchScreenProps = CompositeScreenProps< NativeStackScreenProps<SearchStackParamList, ‘SearchScreen’>, CompositeScreenProps< NativeStackScreenProps<SearchStackParamList>, NativeStackScreenProps<RootStackParamList> > >; export type RestaurantScreenProps = CompositeScreenProps< NativeStackScreenProps<SearchStackParamList, ‘Restaurant’>, CompositeScreenProps< NativeStackScreenProps<SearchStackParamList>, NativeStackScreenProps<RootStackParamList> > >; See how SearchScreenProps and RestaurantScreenProps are kinda redundant? Is there a way I can improve… Read More Avoid repetitive typescript definitions

Using TypeScript, is there a way to define an object of which each key is the same type, while preserving the information of which keys are used?

I have a type for a "helper" function which receives a context object as first parameter: type helper = ((ctx: Context, …params: any[]) => any); Then I want to create an object of which each value is of the helper type: const lib = { path: (ctx) => ctx.getPath(), array: (ctx, …params) => new MyArray(ctx,… Read More Using TypeScript, is there a way to define an object of which each key is the same type, while preserving the information of which keys are used?

How can I pass an enum value as a variable to a function in the Angular html file?

I have this enum I would like to use in my html file: export enum CartAction { ADD = ‘ADD’, REMOVE = ‘REMOVE’, } Currently, it is used in the component ts file as async cartAction(action: CartAction): Promise<void> { if (action === CartAction.ADD) { } if (action === CartAction.REMOVE) { } } And I’d like… Read More How can I pass an enum value as a variable to a function in the Angular html file?