Questions By

Can anyone help me to understand how react js is used for

I would like to know the reasons behind the popularity of Reactjs

Can anyone explain me is React js is a frontend app or backend

I want to the reasons why angular is dying?

I want to the reasons why angular is dying?

i want to learn react js can anyone tell me how much time it will take to learn it

I want to know how react js is better than angular js 

which one is more powerful

I want to use jsx without react is it possible