What is Concurrent Mode?

• Concurrency is not feature
• Behind the scene mechanism

리액트 18에서 이야기하는 동시성 모델에 대해서 알아보도록 하겠습니다. 동시성 모델은 하나의 기능이 아닙니다. 우리가 눈으로 볼 수 없는 내부 구현 메커니즘이라고 볼 수 있습니다.

[Concurrent mode]

https://react.dev/blog/2022/03/29/react-v18#what-is-concurrent-react

• Concurrency is not a feature
• behind the scene mechanism

(It’s a new behind-the-scenes mechanism that enables React to prepare multiple versions of your UI at the same time)

• React rendering model — it’s foundational update

Key : rendering is interruptible

Before

— without any concurrent

— updates are rendered the same as in previous

— with synchronous rendering, once an update starts rendering, noting can interrupt it (until user can see the result on screen)

after