Mongodb entry-4 data types-date and array

Mongodb entry-4 Data Type-the date and array date are different when you create a date in mongodb. The Date type created using Date () in mongodb is a string type, which contains time zone and other data. NewDate () is a date object of the ISODate type. Same

Mongodb entry-4 Data Type-the date and array date are different when you create a date in mongodb. The Date type created using Date () in mongodb is a string type, which contains time zone and other data. New Date () is a Date object of the ISODate type. Same

Mongodb entry-4 data types-date and array

Date

When creating a date in mongodb, the date created in different ways is different.

The Date type created using Date () in mongodb is a string type, which contains time zone and other data. New Date () is a Date object of the ISODate type. Similarly, we can use the ISODate () method to create a Date object. The result is the same as that of new Date. The following is what I tested on my computer:

Here, we need to emphasize that the correct type must be used when writing a program to prevent type Matching errors in future searches, for example, we use Date () when creating a document. It returns a string, but we cannot find it by comparing it with an object.

Array

The array in mongodb is flexible, and the elements in the array can be different.