Efficiency – Projects that used to take hundreds of lines of code now can be developed much faster with well-structured prebuilt patterns, functions and libraries.
Cost – Most frameworks are open source and free. They help programmers to build custom software solutions faster.
React is behind popular user interfaces such as Facebook and Instagram, showing its efficiency within dynamic high-traffic applications. React makes it painless to create interactive UIs. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes. React can also render on the server using Node and power mobile apps using React Native.
AngularJS is another framework for rapidly building an application. It is fully extensible and works well with different libraries. Every feature can be changed or replaced to fit your your unique development workflow and feature needs. AngularJS lets you extend the standard HTML functionality within your application. The resulting environment is expressive, readable, and fast to develop.