SortByCount class

$sortByCount

Stage description

Groups incoming documents based on the value of a specified expression, then computes the count of documents in each distinct group.

Each output document contains two fields: an _id field containing the distinct grouping value, and a count field containing the number of documents belonging to that grouping or category.

The documents are sorted by count in descending order.

https://docs.mongodb.com/manual/reference/operator/aggregation/sortByCount/

Inheritance

Constructors

SortByCount(dynamic expression)
Creates $sortByCount aggregation stage [...]

Properties

hashCode int
The hash code for this object. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

build() Map<String, dynamic>
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
toString() String
Returns a string representation of this object.
inherited

Operators

operator ==(Object other) bool
The equality operator. [...]
inherited