types.ts

const shareLinks: {
  socialMedia: {
    twitter: "twitter",
    facebook: "facebook"
  },
  email: "email",
  anotherWay: "anotherWay" 
}

// or more complex types
type complexDataType = {
  prop1: "any value 1",
  props2: "any value 2",
  category1: {
    nestedCategory1: {
     ...
    }
  },
  category2: {
    nestedCategory1: {
     ...
    }
  },
  category3: {
    ...
  },
}