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What is JavaScript?

JavaScript is a high-level, interpreted programming language primarily used for enhancing web interactivity. It supports object-oriented, imperative, and functional programming styles. Alongside HTML and CSS, it constitutes the core technologies of the World Wide Web. JavaScript allows dynamic interaction, creating user-friendly, responsive web applications.

JavaScript is a programming language you encounter every day during your online browsing. It breathes life into static web pages by making them interactive and dynamic.

While HTML gives your web pages structure and CSS makes them look appealing, JavaScript is the magician that adds the elements of action and interaction.

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How JavaScript Works?

When you visit a website, your browser receives a package of information, which includes HTML, CSS, and JavaScript files. As you interact with the webpage, JavaScript takes center stage.

While your browser reads the HTML and CSS to build and style the webpage, JavaScript waits patiently for its cue. It springs into action when you, for example, click a button, hover over a dropdown menu, or submit a form.

When such an event happens, JavaScript tells your browser what to do next – maybe it’s to display a hidden menu, show a pop-up message, or validate the form you just submitted. It does all this in real-time, communicating between you and the webpage and ensuring a seamless and interactive experience.

An Easy-to-Understand Example

Imagine you’re at a play. The stage and backdrop (HTML) have been set, and the costumes and lighting (CSS) are ready. But without the actors (JavaScript), there’s no action, drama, or interaction.

The actors wait for their cues (events like a click, hover, or submit) and then perform their roles – maybe it’s to reveal a hidden prop (like a dropdown menu), deliver a line (pop-up message), or interact with the audience (form validation).

Bottom Line

In the world of web browsing, JavaScript is the essential actor that brings action and interaction to the stage of the web. It responds to your actions in real-time, making your browsing experience more dynamic and engaging.

So, next time you hover over a menu, and it smoothly expands, or you get immediate feedback after submitting a form, remember that it’s all thanks to the behind-the-scenes work of JavaScript.

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Kushal Azza

Kushal Azza

Kushal Azza is a Google Certified Analytics & IT Professional, Digital Content Creator, and Go-To Digital Marketer with an Engineering Degree. He has over a decade of experience solving tech problems, troubleshooting, and innovating digital solutions. Follow him on Twitter and LinkedIn.

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