03_enums.ts

enum Membership {
    Simple,
    Standard,
    Premium
}

const membership = Membership.Standard // 1
const membershipRevers = Membership[2] // Premium

enum SocialMedia {
    VK = 'VK',
    FACEBOOK = 'FACEBOOK',
    INSTAGRAM = 'INSTAGRAM'
}

const social = SocialMedia.INSTAGRAM // INSTAGRAM