mongoose schema wrong type

Question

I have this issue where i have defined a schema like this:

 analytics: {
    visits: {
      amounts: {
        type: Array,
        default: []
      },
      dates: {
        type: Array,
        default: []
      }
    },
  },

The problem is, when i take a look into the schema its not an array, it is null

 analytics: {
    visits: {
      amounts: null,
      dates: null
    },
  },

Why is it null

Answer 1

According to the documentation :

specifying an empty array is equivalent to Mixed.

Try this:

analytics: {
    visits: {
      amounts: [],
      dates: []
    },
  },