Vishal Basumatary

Merging Two Binary Trees If you have two binary trees and want to merge them into one, you can do so by following these steps: 1. Create a new binary tree with an empty root. 2. Traverse the first tree in pre-order and add each node to the new tree.

JavaScript Assignment Operator If Undefined //The Assignment Operator in JavaScript var x = 10; //Assigning the value of 10 to variable x. var y = 20; //Assigning the value of 20 to variable y. There are various assignment operators in JavaScript, like =, +=, -=, *= etc. The equal to (=) operator is used to assign

Why does HTML tag run only after the whole page is loaded? HTML tags are basically used to define content and structure of a webpage. They are responsible for displaying the data in a user-friendly manner. But have you ever noticed that your web page doesn't load the

Create Record Mongoose Model Creating a record in Mongoose model is a simple process. First, we must define a schema that specifies the structure of our document. We can then create a model using this schema, and use it to save new documents to our database. Defining a Schema The

Add Multiple Tags in jQuery If you are working with jQuery and want to add multiple tags, there are different approaches to do it. Here are some of the ways: Method 1: Using the append() Method To add multiple tags in jQuery, you can use the append() method. This method

Transaction Rollback in Mongoose If you are using Mongoose to interact with MongoDB, you may need to perform multiple operations within a single transaction. In such cases, the ability to roll back a transaction becomes crucial. What is a transaction? In MongoDB, a transaction is a group of operations that

How to Rename a Property in MongoDB? If you are working with MongoDB, there may come a time when you need to rename a property. This can be done using the updateOne() method in MongoDB. Here is how you can rename a property: Step 1: Find the Document First, you

Testing Jest Testing is an important aspect of software development, and Jest is one of the most popular testing frameworks used by developers all over the world. Jest is a JavaScript testing framework developed by Facebook, and it is used to test JavaScript code in a variety of environments such

How to Run a NodeJS File in Infinite Loop? If you want to run a NodeJS file in an infinite loop, it means that you want to execute the file repeatedly without any interruption. This can be achieved using various techniques in NodeJS. Here are some of the ways to

How to Get Day from Javascript Date As someone who has worked with Javascript dates extensively, I have come across the need to extract the day from a date object multiple times. There are a few ways to achieve this. Using the getDay() Method The most straightforward way to get