Gilles Ferrand's Blog

Gilles Ferrand's Blog

What is JavaScript ?

UpdatedJuly 11, 2025

•1 min read

What is JavaScript ?

Full stack engineer but passionnated by front-end Angular Expert / NX / JavaScript / Node / Redux State management / Rxjs

Part of seriesJavaScript

JavaScript

JavaScript or JS is now considered as a high-level programming language and it's currently one of the most popular language in use, it was originally developed as a scripting language by Netscape to make websites more dynamic.

Possibilities of JavaScript

Literally everything 😱 ...
Change DOM (Document Object Model)
Add CSS dynamically
Track users move on your website
Validate inputs in HTML form
Use AJAX to load data without refreshing page
Create re-usable components
HTTP Request to your back-end
Unit testing
End-to-end testing
Create your back-end
Create animations
Create PWA (Progressive Web Apps)
Create Mobile Apps
Create games
Create software (VS Code) ...

It's impossible to cite everything, JavaScript is just too big 💪

That's why JS is fascinating, and that's why you should learn it ! In the beginning It may seem a little bit difficult compared to others languages, but practice makes perfect !

🚀 In my next post you can see some example of JS 🚀

Ressources

Mozilla Developer

#javascript #beginners #beginner #js

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JavaScript

Part 5 of 5

Start from the beginning

How to use the JavaScript spread operator effectively

The spread operator (...) is one of the most useful features in modern JavaScript. It allows you to expand arrays, objects, and other iterable elements in places where multiple elements are expected. This article will explain how to use the spread op...

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Gilles Ferrand's Blog

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Lead Developer Front-end - Enthusiast Developer - NX & Angular Lover