Where is JavaScript used?

Web Development : Where is JavaScript used? is the heart of web development and is used for both front-end and back-end.

Mobile App Development: JavaScript is doing wonders in the field of mobile application development with its mobile app frameworks.

Machine Learning: JavaScript is one of the top choices to implement machine learning over the web and provides powerful frameworks and libraries to do so. 

Desktop App Development: JavaScript has made the development of desktop apps super easy and fun.  

AR/VR Development: As they say, AR and VR are the future, JavaScript has got its hands on the development of AR/VR as well.