Средний Квартал кода

TypeScript

JavaScript с типами, которые ловят баги заранее.

TypeScript is JavaScript plus a type system that catches bugs before your code runs, and it is one of the most popular languages in web development. This track takes you from your first type annotation to the patterns real-world apps use every day: object types, unions and narrowing, generics, utility and mapped types, satisfies, and validating API data at runtime.

You already know JavaScript, so every lesson goes straight to what TypeScript adds, and the quizzes make sure you truly understand what the compiler does.

Уроки: 23
Время: 3 ч
Уровень: Средний

Начать курс · Why TypeScript?

Уроки этого курса пока на английском.

Бронза доступна
Серебро доступна
Золото закрыта

Готовы это доказать?

Вас ждут три экзамена: бронза, серебро и золото.

К экзаменам

Чему вы научитесь

Set up a strict TypeScript project and know what tsc and Node.js each do
Describe posts, users and API responses with precise types
Model API states with discriminated unions and let the compiler check every case
Write reusable generic functions and types
Derive new types with utility, mapped and conditional types
Validate JSON from the network so your types tell the truth

Маршрут

1
Модуль 1
Why TypeScript

What types buy you, how tsc and tsconfig work, and how Node.js runs TypeScript files.

0 / 3
2
Модуль 2
Everyday types

Primitives, inference, arrays, tuples, literal types, and the difference between any and unknown.

0 / 4
3
Модуль 3
Modeling objects

Describe posts, users and API payloads with interfaces, type aliases and Record.

0 / 4
4
Модуль 4
Unions and narrowing

Values that can be one of several types, and how TypeScript follows your checks.

0 / 4
5
Модуль 5
Generics

Write one function or type that works for many types without losing safety.

0 / 3
6
Модуль 6
Advanced types in practice

Utility, mapped and conditional types, satisfies, as const, and validating JSON at runtime.

0 / 5