Creating generic JSDoc comments for multiple key-value pairs is a powerful way

Is there a way to include multiple key-value pairs in a function call similar to the setup of document.createElement (

<K extends keyof HTMLElementTagNameMap>(tagName: K): HTMLElementTagNameMap[K]
)?

This is specifically for proper JSDoc configuration and so that VSCode intellisense functions correctly.

Defined Map:

export interface KeyMap {
  "A": "true" | "false";
  "B": "a" | "b" | "c";
  "C": "foo" | "bar";
}

Function Definition:

export interface Options {
  [key: keyof KeyMap]: KeyMap[key];
  // I'm facing issues as there isn't a method to reference the generic type of the key
}

export function test(options: Options);

Using the Function:

test({ "A": "true", "C": "bar" });

Due to the structure being based on key-value pairs, it's challenging to incorporate generics and retrieve potential values for each key later on.

Answer №1

My solution involved utilizing the syntax

{ [K in keyof KeyMap]: KeyMap[K]; }
and opting for a type over an interface

export type Configurations = {
  [K in keyof KeyMap]: KeyMap[K];
}

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