Question 212832 in Flutter Question posted in
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Flutter – How to delete a value from enum

I have an enum and I want to modify that enum and delete one of its value.

enum Location {a, b, c}

I want to use the same enum later on in the code but I want to delete the a from Location. How can I do that in Flutter?

After deleted the a the enum Location will be look like this

Location {b, c}
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3

Answers


  1. 0

    Enum is fixed number of known constant instances. All instances of the enum must be declared in the beginning of the declaration. So we can’t add/delete values from a enum

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  2. 0

    I don’t know dart, but assuming that enum is an immutable value, just create a function that accepts your enum with a, and constructs a new enum that doesn’t include the a.

    If you’re from Clojure the idea would be something like: (dissoc a Location).

    Forgive me if I’m spouting nonesense. Let me know and I’ll remove the answer.

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  3. 0

    enums generally cannot be modified as they represent fixed set of values, just define another enum and use it for what you want to achieve e.g

    enum Location { b, c }

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