Using Types and Enums in Typescript

EnumsAndTypes.ts

export enum ProperType {
    Lease, Rent, Own
}

export interface PayOffQuote {
    quoteDate: Date,
    goThroughDate: Date,
    ResidualValue: BigInteger,
    propertyType: ProperType,
    PayOFfTax: BigInteger,
    PaytmentsDue: BigInteger,
    PropertyId: Number
}

function processUsersRequest(parameters: PayOffQuote){
    switch (parameters.propertyType) {
        case ProperType.Lease:
            console.info('It"s a lease')
            break;
        case ProperType.Rent:
            console.info("It's a Rent");
            break;
        case ProperType.Own:
            console.info("This is user's own")
        default:
            break;
    }
}