The return types of Array and Object detected by typeof are both Object, so arrays and objects cannot be detected using typeof. Therefore, toString encapsulates the type detection function and is convenient to use. - Code World

The return types of Array and Object detected by typeof are both Object, so arrays and objects cannot be detected using typeof. Therefore, toString encapsulates the type detection function and is convenient to use.

Enterprise 2023-10-04 22:09:04 views: null

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Origin blog.csdn.net/qiaoqiaohong/article/details/120020349

The return types of Array and Object detected by typeof are both Object, so arrays and objects cannot be detected using typeof. Therefore, toString encapsulates the type detection function and is convenient to use.

Using the detected data type typeof

Оба возвращаемых типа Array и Object, обнаруженные с помощью typeof, являются Object, поэтому массивы и объекты не могут быть обнаружены с помощью typeof. Таким образом, toString инкапсулирует функцию определения типа и удобен в использовании.

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