Prerequisites: For getting started with this you should have some familiarity with NodeJS, ExpressJS, MongoDB, and Mongoose....

The findByIdAndUpdate() function is used to find a matching document, updates it according to the update arg, passing any options, and returns the found document (if any) to the callback....

Follow these simple steps to learn how to create a login form using Node.js and MongoDB. Node JS login form allows users to log in to the website after they have created their account using the signup form....

Node.js uses the CommonJS module system to organize code. This means when you want to use code from other files, you use methods like ‘require’. Additionally, Node.js also supports ‘ES6 import and export’ for this purpose. Let us understand in detail....

Binary Search is a searching technique that works on the Divide and Conquer approach. It is used to search for any element in a sorted array. Compared with linear, binary search is much faster with a Time Complexity of O(logN), whereas linear search works in O(N) time complexity...

The find() function is used to find particular data from the MongoDB database. It takes 3 arguments and they are query (also known as a condition), query projection (used for mentioning which fields to include or exclude from the query), and the last argument is the general query options (like limit, skip, etc)....

The findById() function is used to find a single document by its _id field. The _id field is cast based on the Schema before sending the command....

In MongoDB, Population is the process of replacing the specified path in the document of one collection with the actual document from the other collection....

The updateOne() function is used to update the first document that matches the condition. This function is the same as update(), except it does not support the multi or overwrite options....

The findOne() function is used to find one document according to the condition. If multiple documents match the condition, then it returns the first document satisfying the condition....

Django lets us interact with its database models, i.e. add, delete, modify, and query objects, using a database-abstraction API called ORM(Object Relational Mapper). This article discusses all the functional operations we can perform using Django ORM....

In Django, select_related and prefetch_related are designed to stop the deluge of database queries that are caused by accessing related objects. In this article, we will see how it reduces the number of queries and make the program much faster....