What are the recommended methods for ensuring compatibility of enums in Typescript?

Question

What are the recommended methods for ensuring compatibility of enums in Typescript?

I have a const enum named ComponentId with values A, B, and C. Additionally, there is another const enum called BaseId with values D, E, and F which is used in multiple places.

const enum ComponentId {
    A = 0, 
    B, 
    C
}

The challenge I am facing is that I want to be able to utilize BaseId in the same places where ComponentId is being used:

function operateComponent(id: ComponentId) // want to be able to use BaseId as well

One approach could be to modify the function signature to id: ComponentId | BaseId, but this would require changes in many parts of the codebase. I am seeking advice on the best practice to achieve this goal efficiently?

typescript enums

Answer 1

Answer №1

In the beginning - there is no need for const next to enum, as it is a TypeScript construct, not a variable

If this example resolves the issue for you, please review it:

You must create a union type that includes both or more enums:

enum ComponentId {
  A = 0,
  B,
  C,
}

enum BaseId {
  D = 100,
  E,
  F
}

type ComponentIdOrBaseId = ComponentId | BaseId

const operateComponent = (data: ComponentIdOrBaseId) => {}

const x = operateComponent(ComponentId.A)

Alternatively, you could consolidate all values into a single enum:

enum ComponentId {
  A = 0,
  B,
  C,
  D = 100,
  E,
  F
}

type ComponentIdOrBaseId = ComponentId

const operateComponent = (data: ComponentIdOrBaseId) => {}

const x = operateComponent(ComponentId.F)

Answer 2

In the beginning - there is no need for const next to enum, as it is a TypeScript construct, not a variable

If this example resolves the issue for you, please review it:

You must create a union type that includes both or more enums:

enum ComponentId {
  A = 0,
  B,
  C,
}

enum BaseId {
  D = 100,
  E,
  F
}

type ComponentIdOrBaseId = ComponentId | BaseId

const operateComponent = (data: ComponentIdOrBaseId) => {}

const x = operateComponent(ComponentId.A)

Alternatively, you could consolidate all values into a single enum:

enum ComponentId {
  A = 0,
  B,
  C,
  D = 100,
  E,
  F
}

type ComponentIdOrBaseId = ComponentId

const operateComponent = (data: ComponentIdOrBaseId) => {}

const x = operateComponent(ComponentId.F)

What are the recommended methods for ensuring compatibility of enums in Typescript?

Answer №1

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