A Constructor type

[Malix-Labs]

Suggestion

🔍 Search Terms

Class, Constructor, Function, lib

✅ Viability 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, new syntax sugar for JS, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.

⭐ Suggestion

A Constructor type

📃 Motivating Example

There are currently a lot of elements being typed as Function instead of Constructor (see #implementation bellow)

💻 Implementation

https://github.com/Malix-Off/oop-utility/blob/ab0b593f0a7039582ea2876a6eb1c980f4262fd4/src/constructor.ts#L1

export type Constructor<T extends Object = object> = new (...args: any[]) => T;

[jcalz]

This will be declined. TS doesn't add new utility types anymore unless they are required for emitting declaration files. See this comment on #51841 and the things to which it links.

[MartinJohns]

Also a duplicate of #41656 / #20256.