This repo contains basic javscript that you need to be competent before starting to learn React For example 1 Destructuring Objects and Arrays 2 Rest/Spread Operator 3 Template Literals 4 Ternaries Operator 5 Arrow Functions 6 Short Circuiting and Logical Operators 7 Optional Chaninign 8 Array Methods such as map,filter,reduce and sort 9 Working with immutable arrays 10 Asychronous Javascript Async/Await