Cursos de Javascript

Preguntas frecuentes sobre Javascript

What is Javascript?

Javascript is a prototype-based, multi-paradigm, dynamic language, supporting object-oriented, imperative, and declarative (e.g., functional programming) styles that run both in a browser and a regular server.

It was initially developed in 1995 at Netscape to run in the browser and make static HTML pages interactive. In 2009, Node.js showed up, and by then, Javascript could also be run in the backend.

What we refer to as Javascript is technically called ECMAScript. Javascript is historically the client-side implementation of the ECMA standard but may mean any engine nowadays.

What is Javascript used for?

Add interactivity to otherwise static HTML pages rendered on the browser
Loading content on a page without needing to reload it
Send information about the user’s behavior for analytics, ad tracking, and personalization
Write web or mobile applications by using one of the several Javascript libraries (React, Vue, Angular, etc.)
Run any type of code in the backend by leveraging the Node.js runtime

How long does it take to learn Javascript?

Javascript is a fairly simple language, but its ecosystem has evolved really fast in the past decade in such a way that a person could take up to a year to get used to it all. It’s one of three pillars of modern web development, along with HTML and CSS. Additionally, almost every piece of web technology revolves around Javascript in some way or another. You should factor all that in when estimating the time to learn Javascript.

What are the prerequisites for learning Javascript?

You just need dedication, discipline, and interest in programming if you want to learn Javascript. Access to the internet and basic English literacy help too. Basic understanding of the different programming paradigms (especially prototype-based and functional) and boolean algebra will make for a smoother learning experience if you are a total beginner.