What you need to know in javascript to start learning react?

Question

JavaScript

What you need to know in javascript to start learning react?

Answer 1

• basic syntax, built-in array methods, syntactic sugar as classes, es6+-
  
• how the DOM functions,
  
• event model,
  
• why you need SPA
  
• basic understanding of REST architecture
  

Answer 2

you need to know that react is such a small library that will grow into a huge isomorphic monster that will be difficult for you to grow.
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