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Goodbye, Object Oriented Programming

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I’ve been programming in Object Oriented languages for decades. The first OO language I used was C++ and then Smalltalk and finally .NET and Java. I was gung-ho to leverage the benefits of  Inheritance ,  Encapsulation , and  Polymorphism . The Three Pillars of the Paradigm. I was eager to gain the promise of Reuse and leverage the wisdom gained by those who came before me in this new and exciting landscape. I couldn’t contain my excitement at the thought of mapping my real-world objects into their Classes and expected the whole world to fall neatly into place. I couldn’t have been more wrong. Inheritance, the First Pillar to Fall At first glance, Inheritance appears to be the biggest benefit of the Object Oriented Paradigm. All the simplistic examples of shape hierarchies that are paraded out as examples to the newly indoctrinated seem to make logical sense. And Reuse is the word of the day. No… ma...
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What’s the difference between JavaScript and ECMAScript?

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I’ve tried googling “the difference between JavaScript and ECMAScript.” I ended up having to wade through a sea of ambiguous and seemingly conflicting results: “ECMAScript is a standard.” “JavaScript is a standard.” “ECMAScript is a specification.” “JavaScript is an implementation of the ECMAScript standard.” “ECMAScript is standardized JavaScript.” “ECMAScript is a language.” “JavaScript is a dialect of ECMAScript.” “ECMAScript  is  JavaScript.” Holding back the urge to cry, I bucked up and decided to commit to some painful yet productive research. This article represents my current understanding of the differences between JavaScript and ECMAScript. It is geared towards people who are familiar with JavaScript but would like a clearer understanding of its relationship with ECMAScript, web browsers,  Babel , and more. You will also learn about scripting languages, JavaScript engines, and JavaScript runtimes for good measure. So get ...
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How to Secure Session Management in Node

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In a web application, data is transferred from a browser to a server over HTTP. In modern applications, we use the HTTPS protocol, which is HTTP over TLS/SSL (secure connection), to transfer data securely. Looking at common use cases, we often encounter situations where we need to retain user state and information. However, HTTP is a stateless protocol. Sessions are used to store user information between HTTP requests. We can use sessions to store users' settings like when not authenticated. Post authentication sessions are used to identify authenticated users. Sessions fulfill an important role between user authentication and authorization. Exploring Sessions Traditionally, sessions are identifiers sent from the server and stored on the client-side. On the next request, the client sends the session token to the server. Using the identifier, the server can associate a request with a user. Session identifiers can be stored in cookies, localStorage, and sessionStorage. Session identi...
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Angular 9 - User Registration and Login Example & Tutorial

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In this tutorial we'll go through an example of how to build a simple user registration, login and user management (CRUD) application with Angular 9. The project is available on GitHub at  https://github.com/cornflourblue/angular-9-registration-login-example . The Angular CLI was used to generate the base project structure with the  ng new <project name>  command, the CLI is also used to build and serve the application. For more info about the Angular CLI see  https://angular.io/cli . Styling of the example app is all done with Bootstrap 4.4 CSS, for more info about Bootstrap see  https://getbootstrap.com/docs/4.4/getting-started/introduction/ . Here it is in action:   (See on StackBlitz at  https://stackblitz.com/edit/angular-9-registration-login-example ) Running the Angular 9 Login Tutorial Example Locally Install NodeJS and NPM from  https://nodejs.org . Download or clone the Angular project source code from  https:...
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How to download a file using command prompt (cmd) Windows?

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If you’re like most Internet users, you download various types of files now and then. You either download these files with your web browser or some download manager software. Have you ever considered downloading files using the command prompt i.e. CMD? If not, we recommend you to try it. It’s quite interesting apart from being very useful as well. In this article, we’ll show you how to download a file using command prompt aka CMD. How to download a file using command prompt?   There are several useful commands for the Command Prompt and one of them is  bitsadmin . Though bitsadmin has several uses, here we shall limit this article to its role in downloading files only. If you want to read the details about bitsadmin syntax, continue reading this section. Otherwise, you can scroll down to the next section –  Downloading a file .   The syntax of bitsadmin is : BITSADMIN [/RAWRETURN] [/WRAP | /NOWRAP] command   As you know, the parts of the syntax inside ...
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