When a name is entered into the input field #nameInput and the button #greetBtn is pressed, display "Welcome, 〇〇" (where 〇〇 is the entered name) in the paragraph #message.
However, if the input is empty or contains only spaces, display "Please enter your name" instead. Remove any extra spaces before and after the name.
What you'll train
Cover the edge cases
What you get
How to ask the AI
Clearly tell the AI the condition for displaying "Please enter your name": when the input is empty or contains only spaces. Don't forget to also specify that extra spaces before and after the name should be removed.
If you ask vaguelyThe AI may only check for an empty string, treating input that consists only of spaces (" ") as a valid name.
あなたのコード
プレビュー
AIレビュー（プロンプト練習）
コードはChatGPTやClaudeに出させたものを貼って構いません。
ここでの本番は「次にAIへ出す指示」です。評価軸は1つだけ見て、弱点・指示の穴・改善例を返します。
テストに落ちていてもレビューできます。落ちた理由と、指示に足りなかった情報を結びつけます。