What is the method for determining the type of a property value in TypeScript?

Presently, I have the code below which successfully works. X represents a union containing all the types defined within MyType. I am interested in finding out if TypeScript offers an alternative method or a utility function that can achieve the same outcome.

type MyType = {
    name: string,
    age: 15
}

type X = MyType[keyof MyType] // string | number

Answer №1

No specific predefined method exists, but you have the freedom to create your own:

type ValueOf<T> = T[keyof T]

Link to Interactive Sandbox

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