03_02e The source code doesn't match the video source;

[andriussok]

Issue Overview

03_02e The source code doesn't match the video source;

Possible Solution

add extra code if you want, but keep the code from the video in the source;

type ContactName = string;
type ContactStatus = "active" | "inactive" | "new"
type ContactBirthDate = Date | number | string

interface Contact {
    id: number;
    name: ContactName;
    birthDate?: ContactBirthDate;
    status?: ContactStatus;
    email?: string;
}

let primaryContact: Contact = {
    id: 12345,
    name: "James Johnson",
    status: "active"
}

type ContactFields = keyof Contact

function getValue<T, U extends keyof T>(source: T, propertyName: U) {
    return source[propertyName]
}
const value = getValue({min: 1, max: 200}, "");

// function toContact(nameOrContact) {
//     if (typeof nameOrContact === "string") {
//         return {
//             id: 0,
//             name: nameOrContact,
//             status: "active"
//         }
//     }
//     else if (typeof nameOrContact === "object") {
//         return {
//             id: nameOrContact.id,
//             name: nameOrContact.name,
//             status: nameOrContact.status
//         }
//     }
//     else {
//         return null;
//     }
// }

[kerenren]

+1.
sent a pull request #2