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Boolean 对象用于转换一个不是 Boolean 类型的值转换为 Boolean 类型值 (true 或者false).

Date 对象用于处理日期与时间。

创建 Date 对象: new Date()

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Boolean object is used to convert a value that is not of boolean type to a value of boolean type (true or false)

The date object is used to process dates and times.

Create date object:   new Date()