This is the resource I used (as someone who's been doing web development for ~20 years) to get a a basic understanding of React. It, plus some side projects, wa

This is the resource I used (as someone who's been doing web development for ~20 years) to get a a basic understanding of React. It, plus some side projects, was enough to get me up to speed: https://daveceddia.com/pure-react/ https://daveceddia.com/pure-react/ I'm sure there are others that are free; but, this is what worked for me.