It doesn't avoid them. You listen to events, and then you change your model. Based on new model view is rendered using the code you provide (one way rendering -

It doesn't avoid them. You listen to events, and then you change your model. Based on new model view is rendered using the code you provide (one way rendering - model to code). Then React compares the two instances of rendered view (before the event and after) and renders the changes if there are any.