JavaScript Courses

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All JavaScript courses

Udemy instructors specialize in teaching the whole scope of JavaScript—beginner to advanced. Whether you’re interested in back-end development, or app and website building, Udemy has a JavaScript course for you.

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Learn more about JavaScript

JavaScript is one of the most ubiquitous programming languages on the planet, mostly because it's the backbone of interactive web applications. On top of that, JavaScript is a great language for beginners because it gives them a chance to write code that does something visual, which is exciting and helpful when you're just getting started as a programmer. Dynamic content is the hot topic in web development right now. Dynamic content refers to content that constantly changes and adapts to specific users whenever possible. For example, JavaScript can be used to determine if a website visitor is using a computer or a mobile device before deciding whether or not to render the mobile version of the website. It's these small things behind the scenes that create genuine value in using JavaScript to create dynamic web pages.

Frequently asked questions
JavaScript is a curly-braced, dynamically typed, prototype-based, object-oriented programming language. It started as the programming language for the web and is one of the three layers of standard web technologies — the other two being HTML and CSS. JavaScript allows you to create and control content dynamically on a web page without requiring a page reload. Web browsers are able to interpret it, and when triggered by events, modify the HTML and CSS of a web page with dynamic updates. JavaScript also uses asynchronous calls to fetch data from web services in the background. Although it was initially only used in web browsers, JavaScript engines have since been put to use as servers with Node.js, included in desktop application frameworks like Electron, and embedded in phone frameworks like Apache Cordova.