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We have an array of functions, some functions will be synchronous and some will be asynchronous. We will learn how to execute all of them… Read More
We will see how to check if the server where our MySQL Database is Hosted is Active or Not. Syntax: database_connection.ping(callback); Modules: NodeJS ExpressJS MySQL… Read More
LIMIT Clause is used to set the maximum size of the number of rows in the output of SQL Query. Syntax: Select only 3 rows… Read More
MongoDB is an open-source document-oriented database that is designed to store a large scale of data and also allows you to work with that data… Read More
Given an array arr[] consisting of N integers, the task is to count the number of ways to make the product of array elements even… Read More
NodeJs: An open-source platform for executing javascript code on the server side. Also, a javascript runtime built on Chrome’s V8 JavaScript engine. It can be… Read More
In each of the Exercises 1 to 9, find the coordinates of the foci, the vertices, the length of the major axis, the minor axis,… Read More
Competitive Programming is vital for one’s development in the coding field. This article is going to discuss some basics points one should keep in mind… Read More
The need for Heuristic Evaluation : Heuristic Evaluation is the process of thorough evaluation/assessment where the experts in a particular domain, used to measure the… Read More
A tridiagonal matrix is a matrix that has non-zero elements only at the main diagonal, diagonal below and above it. All other elements are zero.… Read More
PATH is an environment variable that is used by Operating System to locate the exe files (.exe) or java binaries ( java or javac command).… Read More
Given a Binary Tree consisting of N nodes, the task is to count the number of levels in a Binary Tree such that the set… Read More
Wells Fargo came in for 2 profiles – one was Technology (SDE), and the other was for the Analyst role. One was allowed to apply… Read More
I recently got Placed in Oyo Rooms through an On-Campus Drive. Here I am Sharing My complete Recruitment Process (Online Test and Technical Interviews). Hope… Read More
Given an array A[] consisting of positive integers, the task is to calculate the minimum possible deviation of the given arrayA[] after performing the following… Read More
Express.js is a Node.js web flexible framework that provides a set of features for mobile and web applications. Express has various methods provide by many… Read More
Given an integer N, the task is to find the minimum count of {1, 2, 5}-valued coins such that changes of all possible values in… Read More
Given a grid mat[][] of size M * N, consisting of only 0s, 1s, and 2s, where 0 represents empty place, 1 represents a person… Read More
An abstract class is a class declared with an abstract keyword. Properties of an abstract class: An abstract can have an abstract and non-abstract method.… Read More