[christophilus]

That's one of the reasons I like them, yes. I've done a lot of manual DOM manipulation, and a lot of jQuery. When you're building anything complex, it starts to become quite difficult to figure out why a particular piece of the DOM is behaving the way it is. It could be an overly aggressive selector that accidentally targeted it, or any number of things.

Prior to React (and similar libraries), DOM manipulation was generally done in a mutating, effectful way. With React (and similar), if a thing is behaving strangely, I just need to go to the component that rendered said thing, and I can almost always find the problem.