What Is A Javascript?

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JavaScript is a text-based programming language that helps you to render web pages interactive, using both the client side and the server side. Where HTML and CSS are languages that give web pages structure and style, JavaScript gives interactive elements to web pages that engage a user. The search box on Amazon, a news recap video embedded in The New York Times, or refreshing your Twitter feed are typical examples of JavaScript that you could use every day.

The introduction of JavaScript enhances the web page's user experience by changing it from a static page into an interactive one. JavaScript, to recap, adds actions to web pages.

What is JavaScript used for?

For web-based applications and web browsers, JavaScript is primarily used. But in applications, servers, and embedded hardware controls, JavaScript is still used outside of the Network. Here are a few simple items for which JavaScript is used:

1.     Adding interactive behaviour to web pages

JavaScript allows web pages to communicate with users. There are almost no limitations to the stuff you can do on a web page with JavaScript. These are just a few examples:

• Show or hide more information with the click of a button
• Change the colour of a button when the mouse hovers over it
• Slide through a carousel of images on the homepage
• Zooming in or zooming out on an image
• Displaying a timer or count-down on a website
• Playing audio and video in a web page
• Displaying animations
• Using a drop-down hamburger menu

2.     Creating web and mobile apps

For the creation and design of web and mobile applications, developers may use different JavaScript frameworks. JavaScript frameworks are JavaScript code library collections that include pre-written code for developers to use for routine programming functions and tasks, basically a framework on which websites or web applications are designed.

React, React Native, Angular, and Vue provide common JavaScript front-end frameworks. Node.js, a JavaScript runtime environment based on the JavaScript V8 engine of Google Chrome, is used by several businesses. Paypal, LinkedIn, Netflix, and Uber! provide a few popular examples.

3.     Building web servers and developing server applications

Developers may also use JavaScript to create simple web servers beyond websites and applications and develop the back-end infrastructure using Node.js.

4.     Game development

Of course, to make browser games, you can also use JavaScript. This is a perfect way to learn the JavaScript skills for beginning developers.

Why use JavaScript over other programming languages? 

There are several reasons for web developers to use JavaScript over other programming languages, aside from the infinite possibilities:

• JavaScript is the only programming language native to the web browser
• JavaScript is the most popular language
• There’s a low threshold to get started
• It’s a fun language to learn