You can enable Javascript on a Mac by going into your browser's Preferences menu. In Safari, you'll find the Javascript option in the Security tab.
You should enable JavaScript on an iPad so that websites you access function properly and so features like animations and videos work.
JavaScript is a big part of most modern websites, but it has its share of cons. Here's how to disable it. Much of the modern web would be vastly different if not for JavaScript, the programming ...