JavaScript Tutorial for Beginners

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Javascript is a lightweight, interpreted programming language. It is designed for creating network-centric applications. It is complimentary to and integrated with Java. it is very easy to implement because it is integrated with HTML. It is open and cross-platform.

Why Study JavaScript?

it is one of the 3 languages all web developers must learn:

   1. HTML to define the content of web pages

   2. CSS to specify the layout of web pages

   3. JavaScript to program the behavior of web pages

Web pages are not the only place where it is used. Many desktop and server programs use JavaScript. Node.js is the best known. Some databases, like MongoDB and CouchDB, also use it as their programming language.

Features of JavaScript

There are following features of JavaScript:

  1. All popular web browsers support JavaScript as they provide built-in execution environments.
  2. it follows the syntax and structure of the C programming language. Thus, it is a structured programming language.
  3. it is a weakly typed language, where certain types are implicitly cast (depending on the operation).
  4. it is an object-oriented programming language that uses prototypes rather than using classes for inheritance.
  5. It is a light-weighted and interpreted language.
  6. It is a case-sensitive language.
  7. it is supportable in several operating systems including, Windows, macOS, etc.
  8. It provides good control to the users over the web browsers.

History of JavaScript

In 1993, Mosaic, the first popular web browser, came into existence. In the year 1994, Netscape was founded by Marc Andreessen. He realized that the web needed to become more dynamic. Thus, a ‘glue language’ was believed to be provided to HTML to make web designing easy for designers and part-time programmers. Consequently, in 1995, the company recruited Brendan Eich intending to implement and embed Scheme programming language to the browser. But, before Brendan could start, the company merged with Sun Microsystems for adding Java into its Navigator so that it could compete with Microsoft over the web technologies and platforms

Application of JavaScript

JavaScript is used to create interactive websites. It is mainly used for:

  • Client-side validation,
  • Dynamic drop-down menus,
  • Display date and time,
  • Displaying pop-up windows and dialog boxes (like an alert dialog box, confirm dialog box and prompt dialog box),
  • Displaying clocks etc.

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Eram Naim, with 4 years of experience in content marketing and 2 years in digital marketing, currently serves as the Co-Founder and COO of Digitaltreed.com. In addition to his role as COO, he also functions as the Sales & Marketing Manager and Editor, showcasing his versatility and expertise across multiple domains within the company.