Why caching is so important: Caching is the process of storing copies of files and data in a cache or some temporary space. By the use of caching, we fetch data very quickly. The best example of a caching tool is Cloudflare. …

In the web applications, sometimes a user will be disconnected from the network. At this time how the application will perform. So, if you create a good app, so it is must detect when the user goes offline and behave accordingly. In some of my freelance project, I was facing…

Every HTML element having display property. Display property tells to web page how an element will render on the web page. By default, all elements of HTML having inline display property. By using of User Agent stylesheets, some elements like div, section, ul having block display property. User agent style…

process is the core module of Node JS and we don’t have a need to install this module. You can simply access this module by require method. const process = require('process') If you don’t want to require process module, you directly use it. process.env By the use of an above…

Exponent power of a number: We get the power value of exponent over the base number by using three methods: By using of default method: Math.pow (). By Looping: for loop and while loop. Recursive method. Math.pow( ):

Reverse a string : In JavaScript, you can reverse a string by three ways: Using default methods ( split (), reverse (), join ()) Using decremented loop. Using of recursion function. Using default methods: Reverse a string by using three default or built-in functions: split () // split a string into array of character. reverse() // reverse…

In modern time, JavaScript stack is booming in the software development field. All companies like JS technologies like Node JS, Angular, React, Vue, Express, etc. So, in today’s life of a software developer is incomplete without the JavaScript. Today we will discuss OOJS (Object Oriented JavaScript) main concept: Objects. Introduction : Object-oriented…

Today we are discussed about Aggregation in MongoDB. Aggregation is the process of grouping the multiple documents and perform any operation and getting the single result. In this medium story, we will take a look at how to create the basic transformation of documents using aggregations. There are 3 ways…