React 

• React is a JavaScript library. As said, react js changes only the virtual DOM, and data flow is only in one direction. 
• React is more simplified as it follows MVC ie., Model View Control.
• React is highly scalable.
• It supports unidirectional data binding, which is one-way data binding.
• React use a virtual DOM

 

Angular 

• Angular is a framework. Angular refreshes the Real DOM, and the architecture ensures bidirectional data flow.
• The architecture is complex as it follows MVVM models ie., Model View-ViewModel. 
• Angular is less scalable than React JS.
•  It allows bidirectional data binding, which means two-way data binding. 
• Angular use regular DOM.