There are several features in a good front-end framework (data flow, modularization templating, etc) that enable you to hit the ground running when you’re developing a new app or website. No wonder that front-end frameworks have become more and more commonplace in the last few years.
Given their increasing popularity, a wide variety of frameworks are now available. In fact, new frameworks keep coming up every year. While most people are aware of popular options like Bootstrap, there may be a newer framework that is better suited to your needs.
What do you want the framework to do?
Prototypes and appearance
CSS preprocessors have a number of features including mixins, variables, and nesting that ease the development process. Most tech teams use either SASS or LESS. Make sure that the front-end framework you choose to use supports the CSS preprocessor you prefer.