Add exclude on enum faker.helpers.enumValue

[mikiyasET]

Clear and concise description of the problem

I wanted to seed some data to the database and one of the tables needs image type and an image so while seeding I couldn't add a file since it needs to be uploaded to the server so for the seed purpose only I wanted to remove the file value from the enum or exclude but there is no option for that

Suggested solution

enum ImageType {
  file
  link
  emoji
  constant
}

const imageType = faker.helpers.enumValue(ImageType, {exclude: [ImageType.file]});

[github-actions]

Thank you for your feature proposal.

We marked it as "waiting for user interest" for now to gather some feedback from our community:

• If you would like to see this feature be implemented, please react to the description with an up-vote (:+1:).
• If you have a suggestion or want to point out some special cases that need to be considered, please leave a comment, so we are aware about them.

We would also like to hear about other community members' use cases for the feature to give us a better understanding of their potential implicit or explicit requirements.

We will start the implementation based on:

• the number of votes (:+1:) and comments
• the relevance for the ecosystem
• availability of alternatives and workarounds
• and the complexity of the requested feature

We do this because:

• There are plenty of languages/countries out there and we would like to ensure that every method can cover all or almost all of them.
• Every feature we add to faker has "costs" associated to it:
  • initial costs: design, implementation, reviews, documentation
  • running costs: awareness of the feature itself, more complex module structure, increased bundle size, more work during refactors

---

View more issues which are waiting for user interest

[ST-DDT]

As a workaround - although less convenient - you can use the following:

faker.helpers.arrayElement([ImageType.link, ImageType.emoji, ImageType.constant]);

[xDivisionByZerox]

As a workaround - although less convenient - you can use the following:

faker.helpers.arrayElement([ImageType.link, ImageType.emoji, ImageType.constant]);

You could also build a function that is basically the implementation of helpers.enumValue():

function enumValue<T extends Record<string | number, string | number>>(enumObj: T, exclude: (keyof T)[]): T[keyof T] {
  const keys: Array<keyof T> = Object.keys(enumObj)
    // ignore numeric keys added by TypeScript
    .filter((key) =>Number.isNaN(Number(key)))
    // this line is what faker is missing
    .filter((key) =>!exclude.includes(key));
  const key = faker.helpers.arrayElement(keys);
  return enumObj[key];
}

// usage

enum ImageType {
  file,
  link,
  emoji,
  constant,
}
cosnt value = enumValue(ImageType , ['file']);
console.log(value); // 1 | 2 | 3 => ImageType.link | ImageType.emoji | ImageType.constant

I'd still consider this a workaround.

---

Working TypeScrip Playground Example