Средний Квартал кода

React

Компоненты, хуки и состояние для настоящих интерфейсов.

React is one of the most widely used libraries for building user interfaces, and React 19 brings Actions, the new use API and Server Components into everyday code. This track takes you from your first component to the patterns real apps rely on: props and state, lists and forms, effects and refs, context, reducers and custom hooks, and finally Suspense, Server Components, error boundaries, testing and accessibility.

You already know JavaScript, so every lesson goes straight to how React thinks, with examples from a small social app called Nova: a feed, like buttons and a leaderboard.

Уроки: 24
Время: 3 ч
Уровень: Средний

Начать курс · Components and the tree

Уроки этого курса пока на английском.

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Золото закрыта

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Вас ждут три экзамена: бронза, серебро и золото.

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Чему вы научитесь

Break any screen into components and write clean JSX
Manage state with useState and useReducer, and update it without mutation
Build lists, controlled inputs and forms with React 19 Actions
Use effects and refs only where they belong, and clean up after them
Share logic with context and custom hooks, and memoize only when it pays off
Load data with Suspense, understand Server Components, and test accessible components

Маршрут

1
Модуль 1
Thinking in React

Components, the rules of JSX, what rendering really means, and a first post card.

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2
Модуль 2
Props and state

Pass data down with props, remember values with state, and update it without mutating.

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3
Модуль 3
Lists, events and forms

Render lists with keys, handle events, control inputs and submit forms with Actions.

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4
Модуль 4
Effects and refs

Sync with the outside world, fetch data safely, use refs, and skip effects you do not need.

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5
Модуль 5
Sharing logic

Context, reducers, custom hooks, and memoization only where it pays off.

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6
Модуль 6
Modern React

Suspense and use, Server Components, error boundaries, testing and accessibility.

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