String key-value type in basic types

Search Terms

typescript string key value type

Suggestion

Add an extra heavely used type - simple Object with string keys, used a lot as "primitive Map".
Tired writing { [ key: string ]: T } each time.
Want export type StrMap<T> = { [ key: string ]: T }; as one of basic types.
Keys in Objects are not too far from strings ( Object.keys(_object).join('/') ).
This is not fully related to https://github.com/microsoft/TypeScript/pull/26797 as it's a wider use case, IMHO.

Use Cases

I'm using this type in a numerous projects in numerous modules.

Examples

Checklist

My suggestion meets these guidelines:

• This wouldn't be a breaking change in existing TypeScript/JavaScript code
• This wouldn't change the runtime behavior of existing JavaScript code
• This could be implemented without emitting different JS based on the types of the expressions
• This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.

El issue no menciona archivos de implementación, pruebas ni puntos de entrada. Comienza revisando cómo TypeScript representa los tipos de firma de índice de objeto reutilizables y la discusión enlazada en PR #26797; el trabajo solo estará completo cuando el proyecto decida si un tipo genérico integrado indexado por cadenas pertenece al lenguaje y defina su comportamiento previsto.