What can javascript do examples

JavaScript Introduction

This page contains some examples of what JavaScript can do.

JavaScript Can Change HTML Content

One of many JavaScript HTML methods is getElementById() .

The example below «finds» an HTML element (with and changes the element content (innerHTML) to «Hello JavaScript»:

Example

JavaScript accepts both double and single quotes:

Example

JavaScript Can Change HTML Attribute Values

In this example JavaScript changes the value of the src (source) attribute of an tag:

The Light Bulb

JavaScript Can Change HTML Styles (CSS)

Changing the style of an HTML element, is a variant of changing an HTML attribute:

Example

JavaScript Can Hide HTML Elements

Hiding HTML elements can be done by changing the display style:

Example

JavaScript Can Show HTML Elements

Showing hidden HTML elements can also be done by changing the display style:

Example

Did You Know?

JavaScript and Java are completely different languages, both in concept and design.

JavaScript was invented by Brendan Eich in 1995, and became an ECMA standard in 1997.

ECMA-262 is the official name of the standard. ECMAScript is the official name of the language.

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Best JavaScript Examples You Must Try in 2023: All You Need to Know

JavaScript is a text-based programming language that you can use from server-side and client-side in your .Net applications. You can use it for developing web pages with its more interactive and user-friendly benefits. You can take a simple authentic example of JavaScript that you can use and see in the search box on the Amazon web portal. It is all the features and behavior designs developed by Javascript. JavaScript enhances the user experience of the web page by transforming it from a static page to an interactive one.

JavaScript is essentially handled and used for web-based applications. You can also use Javascript for implementing hardware controls. Here are a few use cases of JavaScript:

• Defining interactive response and performance to web pages
• JavaScript provides users to interact with web pages as per the below examples as per the requirements
• Show/hide more data or user information using with the click of a button
• Change the color of a button after hovering the mouse hovers over it
• Slide by a carousel of images on the home webpage
• Zooming in/zooming out feature on an image
• Performing a timer and defining count-down on a website
• Performing animation implementations
• Using a drop-down interactive on menu
• Performing audio and video on a web page

Developing web and mobile apps

• Developers can use multiple JavaScript frameworks for developing web and mobile-based applications.
• JavaScript frameworks are groups of plenty of JavaScript code libraries that help developers and write the code as per certain requirements.
• For developing front-end-based UIs here, you can include other various client technologies, such as Angular, React Native.
• Various organizations like JavaScript code libraries practice using Node.js, a JavaScript runtime environment developed JavaScript V8 engine.

Developing web server-based applications

You can also implement JavaScript to develop modest web servers and extend using back-end infrastructure with Node.js.

You can also use JavaScript to perform and develop browser-based games.

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