Invivoo - Blog

Invivoo’s collaborators travel to different fields of Tech in search of new knowledge and experiences to share with you.

Introduction to CORS (CORS definition)

Cors definition : our journey starts here: Figure 1.1: Backend request blocked by the browser Every front-end developer faced or will face this situation at least once in his/her career. When the webapp becomes more complex, we need to interact with multiple backends...

Introduction to React (Typescript)

I. Introduction Front development has been continuously changing, from the early days when developing multi-page applications (MPA) was the norm to today's full rich single page application (SPA). The emergence of Ajax technique and the significant browsers...

Quick guide on animations on the Web

Animations are one of the many tool developers can use to improve the UX on a web application. A well-placed animation can bring the user's attention to something important. They may also indicate that the system is working on...

Introduction to React Hooks

Hooks were introduced in February 2019 as part of React 16.8. They will help you make your code clearer and better structured. The classic class based syntax and idiomw are still still supported, and will keep being supported for the foreseeable future. So no...

Data encapsulation in JavaScript: getters and setters

Data encapsulation in JavaScript: getters and setters When building larger JavaScript applications, there's soon the need to split it into modules linked by clear contracts. When it comes to long term maintenance, a way to keep compatibility upon interface changes...

Angular 7′ New Features

Angular is one of the best-known and most used frameworks for front-end developers. With the release of Angular 7, we have seen several improvements that have mainly affected the Framework 's Core, AngularMaterials, as well as the CLI. In this article we will...

How to use the “THIS” operation in Javascript

In most programming languages, the “this” keyword is used in the non-static code of a class to refer to the current object. For example: class Car { constructor() { this.wheels = 4; } addWheels(n) { this.wheels += n; } } let car = new Car(); car.addWheels(2);...

Immutability and Javascript

The immutability is a very highly exploited concept in functional programming languages, where the values of the variables do not change when assigned. This has the merit of simplifying the administration of the application state by reducing the number of shared...

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