You can use TS "in" operator and do this:

enum Options {
  ONE = 'one',
  TWO = 'two',
  THREE = 'three',
}
interface OptionRequirement {
  someBool: boolean;
  someString: string;
}
type OptionRequirements = {
  [key in Options]: OptionRequirement; // Note the "in" operator.
}

More about the in operator

Answer from Nacho Justicia Ramos on Stack Overflow
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Stack Overflow
stackoverflow.com › questions › 54438012 › an-index-signature-parameter-type-cannot-be-a-union-type-consider-using-a-mappe
An index signature parameter type cannot be a union type. Consider ...

You can use TS "in" operator and do this:

enum Options {
  ONE = 'one',
  TWO = 'two',
  THREE = 'three',
}
interface OptionRequirement {
  someBool: boolean;
  someString: string;
}
type OptionRequirements = {
  [key in Options]: OptionRequirement; // Note the "in" operator.
}

More about the in operator

Answer from Nacho Justicia Ramos on stackoverflow.com
🌐
GitHub
github.com › grafana › faro-web-sdk › issues › 396
Exception this throwing when install this package in ReactJS ...
November 26, 2023 - There is an exception throwing when installing this package in the ReactJS typescript application. Instalation is success but when using this package in code, (when importing from package this expe...
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youtube.com
youtube.com › watch
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twitch.tv
twitch.tv › ts1337 › videos
ts1337's Videos - Twitch
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GitHub
github.com › ethers-io › ethers.js › issues › 4335
abstract-coder - An index signature parameter type cannot be a ...
August 25, 2023 - Ethers Version 6.7.1 Search Terms No response Describe the Problem my app does not build now i get this error snode_modules/ethers/lib.commonjs/abi/coders/abstract-coder.d.ts:15:6 - error TS1337: A...
Published: Aug 25, 2023
Author: REPTILEHAUS
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Reddit
reddit.com › r/learnjavascript › [ts] how do i make an object type with a union type as a key?
r/learnjavascript on Reddit: [TS] How do I make an Object type ...

It should be:

type Stats = {[key in 'attack'|'defense']: number}

But why not just do this:

type Stats = {
  attack: number,
  defense: number,
}

?

More readable.

🌐
GitHub
github.com › Microsoft › TypeScript › issues › 24220
Quick fix for 'unions can't be used in index signatures, use a ...
May 17, 2018 - The following code: type K = "foo" | "bar"; interface SomeType { [prop: K]: any; } Gives this error message: An index signature parameter type cannot be a union type. Consider u...
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Statsnwt
statsnwt.ca › TSR › series.php
Series TS1337
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Typescript-training
typescript-training.com › course › intermediate-v1 › 09-mapped-types
Mapped Types | Learn TypeScript w/ Mike North
June 10, 2021 - Mapped allow types to be defined in other types through a much more flexible version of an index signature. We'll study this type in detail, and demonstrate how it makes language features like indexed access types and conditional types even more powerful!
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정찬교 (@ts1337)
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GitHub
github.com › gojob-1337 › typescript
GitHub - gojob-1337/typescript: TypeScript Style Guide
TypeScript Style Guide. Contribute to gojob-1337/typescript development by creating an account on GitHub.
Author: gojob-1337
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Tsviewer
tsviewer.com › index.php
1337].[LA] | Public TS³ Server - TSViewer.com [en]
TSViewer for 1337].[LA] | Public TS³ Server TeamSpeak 3 server (1337.la:9987) - display of all information and access to stats, graphs, banners, user banners, user history and more.
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Gametracker
gametracker.com › server_info › ts3.tgamer.ru:1337
1337 [ts3] TeamSpeak 3
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Napaonline
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WeatherTech Front Windshield Sun Shade TS1337
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PartsHawk
partshawk.com › home
Weathertech TS1337 | Porsche Cayenne Window Shade (Vehicle Custom Fit)
Weathertech TS1337 | Window Shade
WeatherTech SunShadeFits: 20-21 Porsche Cayenne
Price: $67.98
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GitHub
github.com › gojob-1337 › node-ts-elasticsearch
GitHub - gojob-1337/node-ts-elasticsearch: Elasticsearch decorated ...
Elasticsearch decorated by TypeScript. Contribute to gojob-1337/node-ts-elasticsearch development by creating an account on GitHub.
Starred by 10 users
Forked by 12 users
Languages: TypeScript 99.9% | JavaScript 0.1%