How to become a full stack web developer

At the beginning, before getting into the subject, you should know that the web had 2 parties: the "client side" and the "server side".

The client side is everything you see on the website: images, paragraphs,design, the layout generaly.
The server side is what we do not see, it is the query between the web page and the server: example in facebook login page, we write the username and the password and we click on 'login'
the web page sends a request to the server to verify that the data entered is correct,
if it's correct, the server redirects you to the home page, if it's wrong the server will send you an alert message to tell you that the data entered is incorrect.

The client side developer is called: "front end developer": the essential languages ​​to be a front-end developer are:
- html: this is a markup language used to build the structure of the web page. . .
- css: or cascading style sheet,  used to decorate the web page. . .
- javascript: it is a programming language, which it used to create dynamism for the web page, for example when you click on a particular button, such a function will be executed
and of course to be a professional front-end developer you have to use the frameworks and libraries of these languages: like jQuery (the javascript framework), Sass (the css pre-processor), pugJS (of html) and others ...

The second party web developer is called the "back-end developer", and to be one you have to know one of these language groups:
- PHP with mySQL
- Python (Django) with mySQL
- Ruby with mySQL
- ASP.net with mySQL
PHP, Python, Ruby, ASP.net are the server languages, or the way to send and retrieve data in the database, mySQL is the database, not necessarily mySQL, you can use d 'others!
And to be a full stack web developer, know these two parties