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.

從 React 文件中連結的「State Updates May Be Asynchronous」段落開始，並查看所參照的推文以了解預期的說明。釐清「asynchronous update」的含義以及 batching 如何影響 setState()，同時保留有幫助的範例；該段落應該不需依賴推文也能理解。