TypeScript enums: use cases and alternatives

1. TypeScript

   1 1,411 102,821 9.8 TypeScript

   TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

   

   > Enums is going to make your TypeScript code not work in a future where TypeScript code can be run with Node.js

   Apparently they're planning on adding a tsconfig option to disallow these Node-incompatible features as well [1].

   Using this limited subset of TS also allows your code to compile with Bloomberg's ts-blank-space, which literally just replaces type declarations with blank spaces [2].

   [1] https://github.com/microsoft/TypeScript/issues/59601

   [2] https://bloomberg.github.io/ts-blank-space/

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3. proposal-type-annotations

   2 110 4,311 3.0 JavaScript

   ECMAScript proposal for type syntax that is erased - Stage 1

   

   After almost a decade of TypeScript my recommendation is to not use TypeScript enums.

   Enums is going to make your TypeScript code not work in a future where TypeScript code can be run with Node.js or in browser when typings are added to JavaScript[1]

   Enums results in runtime code and in most cases you really want type enums. Use `type State = "Active" | "Inactive"` and so on instead. And if you really want an closed-ended object use `const State = { Active: 1, Inactive: 0 } as const`

   [1] https://github.com/tc39/proposal-type-annotations

4. ts-blank-space

   3 4 697 9.1 TypeScript

   A small, fast, pure JavaScript type-stripper that uses the official TypeScript parser.

   

   > Enums is going to make your TypeScript code not work in a future where TypeScript code can be run with Node.js

   Apparently they're planning on adding a tsconfig option to disallow these Node-incompatible features as well [1].

   Using this limited subset of TS also allows your code to compile with Bloomberg's ts-blank-space, which literally just replaces type declarations with blank spaces [2].

   [1] https://github.com/microsoft/TypeScript/issues/59601

   [2] https://bloomberg.github.io/ts-blank-space/

5. fs-metadata

   4 1 5 9.8 TypeScript

   Cross-platform native Node.js module for fetching filesystem metadata

   

   I've found this to be quite ergonomic and functional:

   https://github.com/photostructure/fs-metadata/blob/main/src/...

   Usage:

       export const Directions = stringEnum("North", "South", "East", "West")

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