What Is JavaScript and What’s It For? Here’s the Complete Guide

What Is JavaScript and What’s It For? Here’s the Complete Guide
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del 13/12/2022

JavaScript (Programming Language)

The earliest version of JavaScript was devised in 1995, when Netscape decided to create a lightweight scripting language for its browser – a language that would allow web designers to interact with the various objects on the page such as images, forms, links, etc., and especially with the Java applets that ensured communications with users. Netscape had partnered with Sun Microsystems, the company that had devised Java, the same year. The project was assigned to Brendan Eich, who invented LiveScript (today known as JavaScript), which owed its name to its lively and dynamic nature.

On 4 December 1995, Netscape and Sun Microsystems announced the new programming language LiveScript, describing it as complementary to Java and HTML. Netscape also decided to change its name from LiveScript to JavaScript.

Although JavaScript was an instant success, web designers didn’t use it to interact with Java applets but to make pages more dynamic.

Table of Contents

  1. What Is JavaScript and What’s It For?
  2. What Do Javascript Developers Do and How Much Do They Earn?
  3. Online Courses to Recognise and Learn JavaScript Functions
  4. Summing Up

What Is JavaScript and What’s It For?

In other words, JavaScript is a programming language also known as a lightweight scripting language. Programming with JavaScript means creating scripts in webpages developed with HTML, thus ensuring greater interaction and dynamism compared to a simple HTML language. Indeed, it’s also identified as a browser language.

Programming with JavaScript is both simple and complex. You can’t use it unless you’ve studied the program. For example, imagine having a button on a webpage and wanting your users to be taken to another, previously invisible, element in the page once they’ve clicked on it. Well, this effect can only be obtained with JavaScript.

The webpages created just with HTML are completely inanimate; you have to use JavaScript to add the interactions and effects that make the page “come to life”.

Initially, JavaScript was designed with the sole aim of adding innocent interactions to webpages, but it has evolved over time. Today, programming with JavaScript means creating high-quality web interfaces. We’re speaking of so-called single-page applications. These web applications, which offer advantages to users, are simply single HTML files.

In short, a single-page application is a dynamic application whose content is programmed with JavaScript.

What Do JavaScript Developers Do and How Much Do They Earn?

Nowadays, JavaScript developers are among the most in-demand and well-paid figures in the world of information and communications technology.

Developers also have specific which, in addition to an in-depth knowledge of JavaScript and code writing, require skills such as:

  • Concentration;
  • Problem solving;
  • Logic;
  • Self-control and patience.

In general, a good programmer needs to know HTML and CSS, as well as programming languages like JavaScript, which has become acknowledged worldwide and ensures a good income.

A basic salary for a JavaScript programmer starts from € 30,000 per year and can reach € 60,000 per year after 4-5 years. In Italy, a JavaScript developer can earn a high salary which will increase based on career advancement.

The digital world offers great opportunities, with extremely high salaries, lots of satisfaction and growth potential.

Online Courses to Recognise and Learn JavaScript Functions

An increasingly universal language, JavaScript is definitely a basic requirement for any position as a web developer.

Learning and studying JavaScript doesn’t mean knowing and recognising its variables and functions. To master this programming language, you need an in-depth knowledge of its inner functionality and, especially, its most complex parts.

Thinking of a career as a web developer? You’re in the right place! Epicode is the company for you.

Our online course aims to train professional figures like web developers and their specializations (front-end developer, back-end developer, full-stack developer). This course is the perfect solution to learn programming with languages like JavaScript so as to become a web “guru”.

The EPICODE course is 100% online, and our E.P.I.C. bootcamp method gives you the opportunity to experience three months guided by professional experts – “human manuals” who will teach you everything there is to know about “web programming”. Learning these skills will give you the chance to put yourself to the test right away on actual projects that will give you an instant grasp of the use of programming languages and the practice often required on the job market. Furthermore, after an initial theoretical approach, you’ll start learning code writing from the very first lessons.

Once your three months with Epicode are up, you’ll have the necessary preparation and skills for the world of web programming.

Today, figures like web developers, front-end, back-end and full-stack developers are greatly in demand on the job market, and knowledge of programming languages like JavaScript earns them very high salaries; indeed, the average hourly rate for web developers is € 60.

Summing Up

Nowadays, web programmers are key figures for millions of companies all over the world; in the next few years, this job is set to grow and become more and more in demand.

In this article, we’ve spoken of the past, ongoing and future importance and success of the JavaScript programming language, as well as its main features (important scripting language incorporated in browser codes like HTML or CSS) and the skills of a web developer.

This language is a key skill for web developers, who can then choose their specialization (front-end, back-end and full-stack) depending on their career aspirations,

Sign up for an online course like the one offered by EPICODE for excellent results and great achievements in a short time.

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