How to use aggregation in Mongoose?

devquora
devquora

Posted On: Feb 22, 2018

 

Aggregations are a set of functions that are used to manipulate the data that has been returned from a MongoDB query. In Mongoose, aggregations work as a pipeline. The aggregate function accepts the array of data transformations which are applied by data using different methods in terms of arguments.

Syntax: db.customers.aggregate([ ... aggregation steps go here ...]);

In above, aggregation is applied to data of customers.

    Related Questions

    Please Login or Register to leave a response.

    Related Questions

    Node JS Interview Questions with Express

    What is Node js ?

    Node Js is one of the most popular and powerful server technologies today. It allows you built the entire website only..

    Node JS Interview Questions with Express

    Explain CLI in Node.js?

    CLI stands for Command Line Interface. It is a utility or program on your computer where users type commands to perform..

    Node JS Interview Questions with Express

    In which Language Node Js is written ?

    Node js is written in C, C++,JavaScript.It uses Google’s open source V8 Javascript Engine to convert Javascript code..