All Hard Articles
MD5 module in node.js uses a message-digest algorithm and it is a widely used hash function producing a 128-bit hash value. Password hashing is an… Read More
The Validator module is popular for validation. Validation is necessary to check whether the data is correct or not, so this module is easy to… Read More
Sending an email is an essential part of any project and it can be achieved by using Mailgun API. It is very popular for sending… Read More
A formidable module is used for parsing form data, especially file uploads. It is easy to use and integrate into your project for handling incoming… Read More
Accessing static files are very useful when you want to put your static content accessible to the server for usage. To serve static files such… Read More
View engines are useful for rendering web pages. There are many view engines available in the market like Mustache, Handlebars, EJS, etc but the most… Read More
I got connected to the folks hiring at CodeNation by a 3rd party company called CareerSocially who scouted me through my LinkedIn profile. After a… Read More
Job Title: Junior Engineer Round 1: Online Round 500 students appeared in this round. This round has five sections. Section A: Behavioural Analysis, 3 questions to… Read More
The ufunc expect a set of scalars as input and produce a set of scalars as output. Universal functions can be related to mathematical aspects… Read More
Local Area Network (LAN) is a collection of computers and other devices that are connected together over a network and are all in the same… Read More
Hello ! I am a Computer Science student from IP University and have been placed in TCS and Wipro apart from Infosys. I gave my… Read More
Given an array A[] and an integer X. Find the number of unordered triplets (i, j, k) such that A[i] < A[j] < A[k] and… Read More
Given an array A containing N positive integers, the task is to find the number of subsequences of this array such that in each subsequence… Read More
Given an undirected graph of N nodes labelled from 1 to N, the task is to find the minimum labelled node that should be removed… Read More
Do you think you have got imagination power beyond what people call ordinary? You are artistic and creativity runs in your veins, but you still… Read More
Given an array A consisting of N non-negative integers, the task is to choose an integer K such that the maximum of the xor values… Read More
C# is an object-oriented, modern programming language that was created by Microsoft. It runs on the .NET Framework. C# is very close to C/C++ and… Read More
C#
Data Controlling Language (DCL) helps users to retrieve and modify the data stored in the database with some specified queries. Grant and Revoke belong to… Read More
Given a Binary Tree, the task is to print all the Exponential Levels in the given Binary Tree.  An Exponential Level is a level whose… Read More
Given an array arr[] containing N integers, the task is to rearrange all the elements of array such that absolute difference between consecutive elements of… Read More