Learn the Lingo – What is JavaScript?

JavaScriptLearning more about how the web works, and how it can benefit your business can help push your business further. This post will briefly discuss what JavaScript is and how it’s used.

What is JavaScript

JavaScript is a lightweight scripting language that can be inserted into HTML pages. It is used to make websites more dynamic and interactive. JavaScript can be used for alerts, form validation, replacing a CSS class, and much more. JavaScript is not to be confused with Java, an object oriented programming language that is very different in concept and design. Let’s explain what that means with an example.

 
<button type="button" onclick="alert('Welcome to SuperMedia!')">Click Me!</button>

An external JavaScript reference looks like this:

<script type="text/javascript" src="my-file.js"></script>

JavaScript is rendered client-side, meaning it runs when the browser hits the page and HTML is rendered. JS is built into all major web browsers, which include FireFox, Safari, and Internet Explorer. When a user visits your site and they are using a browser that supports JS, and have JS enabled, then it will render your script successfully. These web browsers have JavaScript enabled by default, however, the user has the ability to disable this feature.

Learning the Lingo

JavaScript – JS
Cascading Style Sheets – CSS
Hypertext Markup Language – HTML

About Kim Perry

Web developer at DexMedia. I code, develop, and make websites functional. Technology is always changing and new things pop up, that is what makes it so fun!

What do YOU think?

Let us help you grow your business
Newsletter Signup

Newsletter Signup

Subscribe to our weekly newsletter for helpful tips on marketing your business.

Site Seal

Copyright © 2014, Dex Media, Inc. All rights reserved.