[Typo]: using function before creating it in example

Summary

The code example on "How does React know which state to return?" Deep Dive section in the "State: A Component's Memory" page is using the setState function before defining it. While this code would work due to function hoisting in javascript, it's generally is not recommended, especially as it disturbs the reading flow for code snippets.

Page

https://react.dev/learn/state-a-components-memory#how-does-react-know-which-state-to-return

Details

No response

開啟連結的「State: A Component's Memory」頁面，在「How does React know which state to return?」Deep Dive 區段檢查其程式碼範例。重新排列範例，使 setState 在使用前定義，然後驗證該程式碼片段仍然正確，並且能以預期的順序閱讀。