Context is designed to share data that can be considered “global” for a tree of React components, such as the current authenticated user, theme, or preferred language.

Context is designed to share data that can be considered “global” for a tree of React components, such as the current authenticated user, theme, or preferred language.

Mar 29, 2018 · We are also introducing new APIs for long requested features: an official context API, a ref forwarding API, and an ergonomic ref API. Read on to learn more about the release.

Context được thiết kế để chia sẽ data khi chúng được xem là “global data” của toàn bộ ứng dụng React, chẳng hạn như thông tin về user hiện tại đang đăng nhập, theme, hoặc ngôn ngữ mà người dùng đã chọn.

React has an API to update context, but it is fundamentally broken and you should not use it. The getChildContext function will be called when the state or props changes.

Oct 23, 2018 · Today we’re releasing React 16.6 with a few new convenient features. A form of PureComponent/shouldComponentUpdate for function components, a way to do code splitting using Suspense and an easier way to consume Context from class components.

Hooks are a new addition in React 16.8. They let you use state and other React features without writing a class. This page describes the APIs for the built-in Hooks in React. If you’re new to Hooks, you might want to check out the overview first. You may also find useful information in the frequently asked questions section. Basic Hooks useState

Context provee una forma de pasar datos a través del árbol de componentes sin tener que pasar props manualmente en cada nivel.

Context, prop’ları her seviyede manuel olarak geçmek zorunda kalmadan bileşen ağacı üzerinden veri iletmenin bir yolunu sağlar. Tipik bir React uygulamasında veri prop’lar aracılığıyla yukarıdan aşağıya aktarılır (üst bileşenlerden alt bileşenlere).

The legacy context API is error-prone, and will be removed in a future major version. It still works for all 16.x releases but will show this warning message in strict mode: