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.

まず、リンクされている TypeScript 4.0 の labeled tuple elements に関するリリースノートと、この issue の例を確認してください。payload には実装ファイル、エントリポイント、テストが記載されていないため、コーディングの前に TypeScript の設計プロセスを通じてスコープと完了基準を確立する必要があります。