$year

Returns the year from the input date.

Options

• date (optional) Input date. Default random (1900-2019).

Example

Template

{
    "someDate": "$dt",
    "year": { "$year": "${someDate}" }
}

Output

{
    "someDate": ISODate("2016-06-28T15:28:54.721Z"),
    "year": 2016
}