[Suggestion]: Tic-tac-toe tutorial should explicitly explain that mutation causes unreliable re-rendering

Summary

The tutorial's Why immutability is important section doesn't clearly state that mutating state causes unreliable re-rendering behavior.

Page

https://react.dev/learn/tutorial-tic-tac-toe#why-immutability-is-important

Details

While following the tic-tac-toe tutorial, I was confused about why .slice() is necessary. The "Why immutability is important" section talks about time travel features and performance optimizations, but it never explains that mutating the array directly will cause React to not reliably detect the change, meaning the component may not re-render.

It seems as though that is the primary reason the tutorial uses .slice(), but it's not mentioned. I only found this explanation later in the "Updating Objects in State" article. It would be helpful to include this explanation in the tutorial where beginners first encounter the pattern.

開啟連結的 Tic-tac-toe 教學中「Why immutability is important」的部分，並與所參照的「Updating Objects in State」文章進行比較。更新教學，說明直接變更可能會阻止 React 可靠地偵測變更並重新渲染，然後確認該說明符合現有對 slice()、時間旅行和效能的討論。