Keep in mind I'm not recommending that you don't use React. I'm using it for a hobby project right now. I just mean that you should understand all the concepts

Keep in mind I'm not recommending that you don't use React. I'm using it for a hobby project right now. I just mean that you should understand all the concepts behind it so that if you need to move to another tool for a particular job or if it's superceded by something in the future, you can make the jump across much easier. My usual measuring stick is "if this thing disappeared tomorrow, would I be able to recreate it from scratch myself with no documentation?" (obviously not up to the same performance standards).