Clarify? “State Updates May Be Asynchronous”

Sect. “State Updates May Be Asynchronous” may profit from more information:

• The example is very helpful, as is the sentence “React may batch multiple setState() calls into a single update for performance”.

• However, “asynchronous update” confused me (“delayed” may have been a better word). Only the following tweet made it completely clear: https://twitter.com/dan_abramov/status/824309659775467527

• Thus: maybe explain a little more and/or use example and explanation from the tweet.

从 React 文档中链接的“State Updates May Be Asynchronous”部分开始，并查看所引用的推文以了解预期的解释。阐明“asynchronous update”的含义以及 batching 如何影响 setState()，同时保留有帮助的示例；该部分应当无需依赖推文也能理解。