Cloud computing is a type of internet-based computing that provides shared computer processing resources and data to computers and other devices on demand. It's a way of delivering computing services, such as servers, storage, databases, networking, software, analytics, and more, over the internet (“the cloud”). Cloud computing allows users to access applications and data from any device with an internet connection. JavaScript is often used to create cloud-based applications, as it allows developers to quickly build and deploy applications across multiple platforms.