Is it possible to have nested enum in Typescript?

Question

Having those enums:

export enum First { TEST_1 = 'test_1', TEST_2 = 'test_2' } export enum Second { TEST_3 = 'test_3', TEST_4 = 'test_4' }

is it possible to combine them into a single one?

Something like:

export enum Main { First { TEST_1 = 'test_1', TEST_2 = 'test_2' }, Second { TEST_3 = 'test_3', TEST_4 = 'test_4' } }

Only numeric enums can have computed members, but this expression has type '{ TEST_1: string; TEST_2: string; }'. If you do not need exhaustiveness checks, consider using an object literal instead. listen to ts :)) — Jafar Jabr
– Jafar Jabr, Commented Jan 8, 2022 at 19:50

Ran Turner · Accepted Answer · 2022-01-08 19:56:16Z

You can’t create nested enums in TypeScript. What you could do is create a little hack where you can create an object (Main), which contains a bunch of enums and essentially achieve the same effect

enum First { TEST_1 = "Main.First.Test1", TEST_2 = "Main.First.Test2" } enum Second { TEST_3 = "Main.Second.Test3", TEST_4 = "Main.Second.Test4" } const Main = { First, Second };

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