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Les collaborateurs d’Invivoo voyagent à travers différents domaines d’expertises à la conquête de nouvelles connaissances et expériences à partager.
by Marcos Almeida | 10 August 2023 | Front-End, Java | 0 Comments
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...
by Fernanda Laguna | 5 July 2023 | Java | 0 Comments
Last month I had the opportunity to visit Devoxx 11th edition and to attend a conference about PostgreSQL advanced features called “Profitez de PostgreSQL pour passer à la vitesse supérieure” by Emmanuel REMY. Postgres is now in its version 15 and it is the 4th most...
by Alaeddine Tlijani | 17 February 2023 | Java | 0 Comments
Spring Boot application example with BDD tests Nowadays fast-paced development is widely followed in software projects. The endless technological progress and the large adoption of Agile methodologies are boosting the development. Microservices came to light to enable...
by Mustapha LBOUCHOUARI | 5 July 2022 | Java | 0 Comments
During my visit to Devoxx Paris 2022, I was inspired by Mathias Herbert’s conference “coding for Ethernity”, this has given me the idea of writing this article … Heroes invest in crypto ; legends create them ! Actually, I am not going to show you how to create your...
by Zakaria Maaraki | 23 September 2021 | Design & Code | 0 Comments
In this article we are going to study Event Sourcing, CQRS and Stream processing with Apache Kafka. The classical way to store state changes of an application is to use a database, it can be either a relational database or a NoSQL database it doesn’t matter. Using a...
by Marcos Almeida | 22 April 2021 | Design & Code, Front-End | 0 Comments
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...
by Alaeddine Tlijani | 11 February 2021 | Design & Code, Front-End, Java | 0 Comments
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...
by Marcos Almeida | 1 October 2020 | Front-End | 0 Comments
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...
by Marcos Almeida | 27 March 2020 | Front-End | 0 Comments
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...
by Sotifa R. Adidagacila | 19 September 2019 | Java | 0 Comments
Available since March 19th, 2019, Java 12 is yet another small step forward for Java. It should be noted that Java 12 is not a LTS version (Long Term Support) as is Java 11 and will be Java 17 (as seen in this previous article to better understand the release cycle...
by Sotifa R. Adidagacila | 27 August 2019 | Java | 0 Comments
This part presents different uses of vert.x in various contexts. Boiler Vroom This demo presented by Julien Ponge is a Vert.x application designed around the Traktor audio mixing software. This application uses Vert.x to allow users to interact with the Traktor...
by Philippe Boulanger | 19 August 2019 | C++ | 0 Comments
C ++ is one of the most used languages in finance today, especially for its performance. Its first standardization by the International Standardization Organization (ISO) took place in 1998. It followed a simple version of bug...
by Vincent Dussuel | 6 August 2019 | Java | 0 Comments
Java 11, released in september 2018, is a major novelty of the Java language in that it is an LTS version (Long Time support) that will be supported by Oracle until 2023 - and beyond if we want to benefit from extended support. As a result, Java 11 appears as an...
by Robin Huart | 22 July 2019 | Python | 0 Comments
As a former C developer working in high-performance computing, I wondered very early about the compactness of objects that were commonly created in Python. It quickly became clear to me that this was not optimal in most cases, resulting from the choice of original...
by Grow Together | 16 April 2019 | C# | 0 Comments
Introduction C#, one of the most popular programming languages, is primarily used for back-end development. But in today's world, industry's standards have changed, meaning that full-stack developers are more sought after than their front or back-only counterparts. As...
by Grow Together | 9 April 2019 | Java | 0 Comments
This article, written in a ‘questions and answers’ form, is intended for end-of-course students, junior developers as well as enthusiasts who plan on undergoing technical Java interview in the near future. The questions being...
by Sotifa R. Adidagacila | 19 March 2019 | C# | 0 Comments
Launched a few months ago, the new version of C# brings new features primarily aimed towards simplifying code and improving performance. In this article, we will discuss the tuples, C# 7.0 version’s new features and a small “behind the scenes” explaining how they...
by Philippe Boulanger | 13 March 2019 | Python | 0 Comments
1. Context Twice during my career, I was given the project to compare two large CSV files (Comma Separated Values: text files corresponding to either an Excel file export or an export of database tables): In the first case, it was a comparison between trades entered...
by Robin Huart | 5 February 2019 | Python | 0 Comments
Python is a strongly object-oriented language and is becoming increasingly popular over the years. Lots of projects continuously emerge which size and complexity make them much more than just a bunch of scripts. Such projects make extensive usage of OOP, defining...
by Fadi Abassi | 21 January 2019 | Front-End | 0 Comments
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...
by Marouane Salim | 10 December 2018 | Java | 0 Comments
Three years after the release of Java 8, Java 9 has finally seen light of day. With more than 80 new features available at this address: http://openjdk.java.net/projects/jdk9/. (This is a very rich version in terms of content.) You will be able to discover through...
by Marcos Almeida | 31 October 2018 | Front-End | 0 Comments
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);...
by Hervé Tamto | 17 October 2018 | Java | 0 Comments
SPRING SECURITY DEFINITION Spring Security is a lightweight security framework that provides authentication and authorization support to secure Spring applications. It comes with implementations of popular security algorithms. This article guides us through the...
by Marouane Salim | 25 September 2018 | Java | 0 Comments
It’s only been six months since Java 9's release, and we can already take a look at Java 10’s updates. In this article, we will be focusing on the main new features that will be used by developers in this version. The Type Inference of LocaL Variables It’s the biggest...
by Benoît Jonathas | 27 August 2018 | Java | 0 Comments
The arrival of Java 9 and its modules, the shutdown of the free support of Java SE 8 in 2019 and the new release system set up by Oralce are subjects that animate the Web very much. In this article, we will see what the logic of this new system is, what will be the...
