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JavaScript Tutorial & Demo 1: Theory

JavaScript Tutorial & Demo 1 Theory

If you are a JavaScript Beginner & need JavaScript Tutorial, you are in the right place. We are starting a series of “Easy to Understand” tutorials for JavaScript Beginner level. JavaScript is an interpreted programming language that is lightweight. It is targeted for the development of network-centric applications. It complements and integrates with Java. Because it is integrated with HTML, JavaScript is relatively simple to implement. It is open and platform-agnostic.

JavaScript is a computer language that was created to interact with web page components. JavaScript is divided into three sections in web browsers:

JavaScript is also commonly utilized in game creation and mobile app development.

JavaScript Tutorial Theory: Key Features

JavaScript has the following features:

JavaScript Beginner Theory: Why Should You Learn JavaScript?

Javascript is a must-have skill for students and working professionals who want to become exceptional software engineers, primarily if they work in the web development domain. I’ll go through some of the primary benefits of learning Javascript:

JavaScript Beginner Theory: History of JavaScript

Brendan Eich, a Netscape engineer, invented JavaScript in 1995. It was initially known as Mocha. It was later renamed LiveScript.

Brendan Eich (Source:

Netscape opted to rename LiveScript to JavaScript to capitalize on Java’s popularity at the time. The decision was taken immediately before Netscape Navigator 2; a web browser was introduced. As a result, JavaScript was upgraded to version 1.0.

Microsoft released Internet Explorer 3 (IE 3) in the interim, a web browser that competed with Netscape. JavaScript 1.1 was published by Netscape in Netscape Navigator 3. However, Internet Explorer had its JavaScript implementation, known as JScript. Microsoft used the moniker JScript to avoid licensing concerns with Netscape.

There were two versions of JavaScript on the market: JavaScript in Netscape Navigator and JScript in Internet Explorer. Any standards did not govern JavaScript’s syntax and functionalities. And the community agreed that it was past time to standardize the language.

JavaScript 1.1 was proposed to the European Computer Manufacturers Association (ECMA) in 1997. Technical Committee #39 (TC39) was tasked with standardizing the language to be used for general-purpose, cross-platform, and vendor-neutral scripting. TC39 developed ECMA-262, a standard that defines a new scripting language called ECMAScript (often pronounced Ek-ma-script).

Following that, the International Organization for Standardization (ISO) and the International Electrotechnical Commissions (IEC) adopted ECMAScript (ISO/IEC-16262).

JavaScript Beginner Theory: JavaScript Implementation

JavaScript is a programming language that is used to construct interactive websites. It is mainly employed for:

JavaScript Beginner Theory: JavaScript Programming Applications

Javascript, as previously said, is one of the most frequently used programming languages (Front-end and Back-end). It may be found in practically every aspect of software development. I’ll mention a handful of them here:

This list goes on and on; there are several areas where millions of software developers happily utilize Javascript to create fantastic websites and other products.

JavaScript Beginner Theory: How to Execute JavaScript

JavaScript, being a scripting language, cannot run on its own. In actuality, the browser is in charge of executing JavaScript code. When a user requests an HTML page containing JavaScript, the script is transmitted to the browser, and the browser executes it. The key advantage of JavaScript is that all current web browsers support it. As a result, you don’t have to be concerned about whether your site visitor uses Internet Explorer, Google Chrome, Firefox, or another browser. JavaScript will be available. Furthermore, JavaScript is compatible with every operating system, including Windows, Linux, and Mac. As a result, JavaScript solves the fundamental shortcomings of VBScript (now obsolete), which is confined to just Internet Explorer and Windows.

JavaScript Beginner Theory: JavaScript Frameworks and Libraries

JavaScript Beginner Tutorial: The Needed Tools

To begin, you’ll need a text editor to write your code and a browser to see the web pages you create. You can use whatever text editor you choose, such as Notepad++, Visual Studio Code, Sublime Text, Atom, or any other text editor you are familiar with. Any online browser, including Google Chrome, Firefox, Microsoft Edge can be used.

JavaScript Beginner Tutorial: Hello World! Illustrations will be discussed in next tutorial.

Article Category: JavaScript Tutorials

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