Typescript enum array variable

Question

Is it possible to have a string[] type variable but that allows only values from an enumeration ?

I am trying to achieve it this way but something is wrong:

enum RobotTransformType = {
 JET = "JET",
 CAR = "CAR"
 ... many other options
}

let multipleTransformBot: RobotTransformType[];
multipleTransformBot = ["JET","CAR",... maybe others];

It also important to know that this enumeration is the type of a Typegoose(typescript mongoose) model:

@prop({ enum: RobotTransformType })
transformType: RobotTransformType[];

Yakov Fain · Accepted Answer · 2020-03-24 21:04:12Z

2

enum RobotTransformType  {
 JET = "JET",
 CAR = "CAR"
}

let multipleTransformBot: RobotTransformType[];
multipleTransformBot = [RobotTransformType.JET,
    RobotTransformType.CAR
];

Watch my lesson on string enums here: https://www.youtube.com/playlist?list=PLkKunJj_bZecSLIEeXEhUxD7e7aj7-fN3

answered Mar 24, 2020 at 21:04

Yakov Fain

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1 Comment

Lu Blue Over a year ago

I checked your channel, great work, thank you. The problem is that the RobotTransformType enumeration is type of a model property like : class RobotTypeModel { @prop({ enum: RobotTransformType }) transformType: RobotTransformType[]; }

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