Is it correct to use getElementsByClassName and getElementByid in React.js and can they be used?

Question

React

Hello. I am interested in such a question, but it is correct to use getElementsByClassName and getElementByid in React.js. I just need to iterate over the elements. Can I use getElementsByClassName ? I also know about Refs. Can you tell more about them? All their shortcomings and so on.
Thanks for the answer )

Answer 1

no, DOM manipulation should not be done directly