Labeled maps, set and records

Suggestion

Following on the idea of labeled tuples and parameter names, would it be possible to label Map, Set and Record?

Use Cases

It would help to communicate the intent of the different parts.

Examples

Map<tabId: number, annotationCount: number>
Record<tabId: number, annotationCount: number>
Set<tabId: number>

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.

Commencez par consulter la note de version liée de TypeScript 4.0 sur labeled tuple elements ainsi que les exemples de cette issue. Le payload ne nomme aucun fichier d’implémentation, point d’entrée ou test ; le périmètre et les critères d’achèvement devraient donc être établis via le processus de conception de TypeScript avant de coder.