Programming Tutorials and Coding Guides

In this tutorial we will cover multiple methods to solve matrix script from hackerrank solutions.

Sample shell script to create an interactive calculator using bc command to perform add, subsctract, multiply. divide, sine, cosine etc mathematical function.

Calculate loan EMI amount, interest and principle using bash or shell script in Linux with example. The script can be created online and runtime value.

There are 3 methods to solve hackerrank python piling up problem. Using collection module, Using loops, Using if-else statement

In this tutorial, we are going to examine some examples of trim leading and trailing white spaces of a string in Golang. Golang provides the built-in package

In this tutorial we have covered different examples to cover golang array contains elements. Use for loop to check for string, int or float64 element in array or using slices.contains

We can use copy() and append() function to merge or concatenate two or more slices in Golang.

In this article we learn about different methods which can be used to golang concat slices and remove duplicates

In general, golang does not allow declaring a constant struct and constant within a struct. But we can use a custom function to perform this purpose

Learn how to remove fields from struct in golang or hide them.

There are multiple ways to set default values in go struct. We have explored some of the possible ways such as using an init function, using a separate constructor function or using struct tags

The zero value of type Time is January 1, year 1, 00:00:00.000000000 UTC. The IsZero() method returns whether a time has a zero value or not.

In this article we will learn how we can print a list in reverse order with range() in Python for which first we need to know what range() is and how it works.

In this guide, we'll go over the fundamentals of fuzzing in Go. We will create some fuzz tests for functions using the go command, and troubleshoot and debug

This tutorial shows you how to Node.js save form data in MySQL table step-by- step. We will install and configure MySQL on the local machine before creating a

Golang is a perfect programming language for creating CLI applications. In today's post, I will introduce you Cobra - a library for creating powerful modern

Step by step instructions to perform golang benchmarking and testing

Step by Step instructions to install golang on WIndows using official archive and choclatey

Use len() function to check length of a set in Python

Step by Step instructions to create and manage QL database using golang sql module. Perform CRUD Operation using GO.

Step by Step instructions to understand golang testing and write unit tests in go code.

Use matplotlib.pyplot.vlines to draw vertical lines in Python with examples.

We can use 3 different methods to add items to array in Node.JS using push, unshift or concat method

We can use promise.all to check and wait for loop to finish in Node.js

we learn about Go constructors. Go does not come with constructors natively but provides ways to construct new types. Constructor functions are ordinary functions

In this article we have shared multiple ways to calculate date and time of 6 months ago from today in Python

Step by step instructions to create HTTPS Server with Node.js with example web server

We can either use foreach loop of maps function to update key with new value in Javascript

Check synchronously if file/directory exists in Node.js, How to check whether a directory exists in node.js?, NodeJs: fs.stat() or fs.access() to check if a folder exists, Node - Check to see if a directory exists, …

The exec() and spawn() methods are some of the frequently used Node.js child process module methods. Use the exec() method to run shell-like syntax commands on a small data volume. Otherwise, use the spawn() command, as …