Function to get typesafe Typescript enum member array

getTypedStringEnumArray.ts

export function getTypesafeEnumArray<T>(enumType: T): T[keyof T][] {
    return Object.keys(enumType)
        .filter((key) => isNaN(Number(enumType[key as keyof typeof enumType])))
        .map((key) => enumType[key as keyof typeof enumType]);
}

enum OrdinalEnum {
    ONE,
    TWO
}

enum StringEnum {
    A = 'HELLO',
    B = 'WORLD'
}

enum HeterogeneousEnum {
    Y = 1,
    Z = 'OMEGA'
}

const ordinalMembers: OrdinalEnum[] = getTypesafeEnumArray(OrdinalEnum);
console.log(ordinalMembers);
// Output: ["ONE", "TWO"]

const stringMembers: StringEnum[] = getTypesafeEnumArray(StringEnum);
console.log(stringMembers);
// Output: ["HELLO", "WORLD"]

const heterogenousMembers: HeterogeneousEnum[] = getTypesafeEnumArray(HeterogeneousEnum);
console.log(heterogenousMembers);
// Output: ["Y", "OMEGA"]