[Suggestion]: Correction of misleading explanation in react.dev/learn (Quick Start)

Summary

In the image above, the highlighted text implying that if statements don't work in JSX is misleading. As this is a resource that will be used by a lot of developers looking to learn React, I believe it would be beneficial to the community to clarify the information that was intended to be passed on to readers

Page

https://react.dev/learn

Details

As stated earlier in the page—code inside the curly braces is actually JavaScript. In the context of the highlighted text one could be led to believe that using if statements in a JSX file simply won't work or using it inside the curly braces also won't work which are both inaccurate. It is important for someone new to JSX to understand that the code inside the curly braces is supposed to be an expression.

Simply explaining that the js inside the curly braces must be an expression that returns a value, in this case—a markup should help the user better understanding why we shouldn't use an if statement directly in there.

Thank you for your time.

從連結的 react.dev/learn 頁面開始，找到 Quick Start 中醒目標示的說明。檢查周圍關於 JSX 和 JavaScript 的措辭，然後釐清大括號內的運算式與直接使用的 if 陳述式之間的區別；頁面應準確說明範例為何如此撰寫。