There are now all manner of frameworks appearing all the time, with AngularJS sitting amongst the most popular, along the likes of Ember, Backbone, Require, Knockout and Cappuccino.
Several attributes, when added to standard HTML5 code, can quickly start to produce Angular results, with the learning curve fairly simple at the start, with powerful functionality available with further complexity as the application builds.
Those looking to learn more about AngularJS should check out the many tutorials and considerable documentation which is available on the official website. There are also many other helpful tutorials on other web development websites, too. A growing interest in this framework has meant that much information is available across the web, as well as many plugins being developed for use alongside AngularJS as a way of extending it's scope even further.
These frameworks have been designed to be reliably easy to pick up so that you may be able to learn many of them in a short period of time, and then adapt to whichever your company happens to use at that time.