MongoDB is a popular NoSQL database that stores data in a document-based format. Unlike traditional SQL databases, MongoDB does not support the use of JOINS to combine data from multiple…
JavaScript objects are a fundamental data structure in any web application. One of the common tasks when working with objects is to check if an object is empty or not.…
We can check that a given variable is a date object or not. To check this, we have various approaches. Let check one by one. Solution 1: It will work…
Suppose we have collection of documents having array and we want to update document having array on the basis of some condition. Insert document in movies collection db.movies.insertMany([ { title:…
The legacy mongo shell is no longer included in server packages as of MongoDB 6.0. mongo has been superseded by the new MongoDB Shell (mongosh) which is available separately: Download and Install mongosh The MongoDB Compass admin…
To check a string value is a date, there are many ways to do that. But problem occur when string is a number, since a number can be converted into…
In mongodb, we can count document in multiple ways. Some ways are deprecated, and some are newly introduced. Let see all possible method to count the documents. 1. db.collection.count() db.collection.count(query,…
Radom data is useful to test many scenarios and check our code stability in many ways. We can get random documents from given collection. Solution 1: Using $sample Randomly selects…
