Author: Alka Vats

Visualizing data - abstract purple background with motion blur, digital data analysis concept

D3.js Bar Chart: Build Interactive JavaScript Charts and Graphs

Reading Time: 7 minutes Recently, we had the pleasure to participate in a machine-learning project that involved libraries like React and D3.js. Among many tasks, I developed a few d3 bar charts and line charts that helped to process the result of ML models like Naive Bayes. In this article, I would like to present my progress with D3.js so far and show the basic usage of this javascript Continue Reading

Node JS Server with Express framework

Reading Time: 3 minutes Introduction: Express is a minimal and flexible Node.js web application framework that provides a robust set of features to develop web and mobile applications. It facilitates the rapid development of Node based Web applications. Following are some of the core features of Express framework − Allows to set up middlewares to respond to HTTP Requests. Defines a routing table which is used to perform different Continue Reading

Enabling CORS in Node.js

Reading Time: 2 minutes In the last blog, we’ve learnt the basic about the CORS, how we can setup and how it works. Now ini this blog, we’re going to learn how we can enable the it in node.js CORS is a browser security feature that restricts cross-origin HTTP requests with other servers and specifies which domains access your resources. Let’s say accessing images, videos, iframes, or scripts from Continue Reading

Angular Routing Guards: Understanding canActivate Guard (Part-2)

Reading Time: 7 minutes If you are trying to block some routes from loading based on some permissions or blocking a route based if not authenticated, then you can read along and at the end, you will understand about the canActivate Guard. In the series of Angular Routing Guards Part-1, we’ve learned and understood the basics of angular route guards. If you’ve no prior knowledge about Angular Route Guards, Continue Reading

A Guide to CORS in Node.js with Express

Reading Time: 4 minutes Introduction Node.js is an open-source and cross-platform runtime used when executing JavaScript code on the server-side. One of the popular Node.js server frameworks is Express. Implementing CORS in Node.js helps you access numerous functionalities on the browser. Express allows you to configure and manage an HTTP server to access resources from the same domain. The three parts that form an origin are protocal, domain, and port. Let’s Continue Reading

Maven: Let’s Get Started with Single Module Project

Reading Time: 4 minutes If you wants to manage the build, testing, and deployment processes. Maven can helps you out in this. It can separate the unit tests and integration tests.So you only run them when necessary and cut down on build time. In this blog we’re going to learn for what reason do we need Maven, basics, and a single module project of Maven. For what reason do Continue Reading

Let’s learn Dockerizing a Node.js web app : Docker

Reading Time: 3 minutes The goal of this blog is to show you how to get a Node.js application into a Docker container. This blog is intended for development, and not for a production deployment. This blog also assumes you have a working Docker Installation and a basic understanding of how a Node.js application is structured. If you want to learn in more detail about it, you can refer here. So let’s Continue Reading

Getting started with first Node JS Server with HTTP

Reading Time: 3 minutes Introduction: Node.js is a platform built on Chrome’s JavaScript Runtime for easily building fast and scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices. If you wants to learn more about Node.js, you can refer here. Before creating an actual “Hello, World!” application using Node.js, let us see Continue Reading

Angular Routing Guards: Let’s understand Route Guards (Part-1)

Reading Time: 6 minutes If the user wants to open a certain page in a traditional server-side application, the application would first check permissions on the server and return a 403 error page. For eg., if the user didn’t have permissions then there will be no routing to the dashboard page and it will route them again to a login/register page if they were not signed up. 403 is an HTTP error code. Specifically, this Continue Reading

Let’s learn all about Responsive Web Design

Reading Time: 5 minutes Either if you want to create a page, website, or anything, you have to know about responsive web design. Not only it’s the latest design trend, but it is also important to get good business now a days. Responsive web design is the thing that permits your page or the website to looks good on any type of device, regardless of whether it be mobile Continue Reading

Lazy-Loading Feature Modules In Angular

Reading Time: 6 minutes Before starting the lazy-loading feature module of angular, first, let’s understand what a module is? So, a module is a way to group components, pipes, and services, etc., all together that are related to each other. Module set is group together to form an application. One component can use the data of other modules. Angular Modules: In angular, this feature is defined by NgModule. Every Continue Reading

NGRX vs NGXS: State Management Techniques

Reading Time: 3 minutes Before starting, let’s first understand what NGRX and NGXS are and we will see NGRX vs NGXS? Both NGRX and NGXS are state management libraries for an Angular application and they both share the Redux principle.  NGRX: NGRX is one of the libraries which helps to manage the state of the application. It is a Redux execution for Angular. If you want to know about Continue Reading

Let’s play with Template Driven forms in Angular

Reading Time: 4 minutes These days a wide range of sites are utilizing HTML Forms. WebForms are utilized to gather the information from the client and send it to the worker for handling. Angular forms are divided into 2 types:  (i) Template-driven forms. (ii) Reactive forms. In this blog, we will learn how to build the template form and how we can validate them using Angular form API.  It Continue Reading