Last Updated:2025/12/06

When you try to access a variable before its declaration, you're still inside the temporal dead zone and will get a ReferenceError.

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When you try to access a variable before its declaration, you're still inside the temporal dead zone and will get a ReferenceError.

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変数を宣言する前に参照しようとすると、変数宣言前のコード領域にいるためReferenceErrorが発生します。

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