Is "name" attribute mandatory in <input>, <textarea> and <button> elements?

Question

Is "name" attribute mandatory in <input>, <textarea> and <button> elements? Or maybe we can use id or class instead?

Answer 1

• If these tags are inside a form tag and you are subbmitting that form to a server, then name is required,
• If you are just using them for client-side purposes and don't want to send them to server, then it is optional.