How to access the field of an object in React if it comes as a response from the backend and is initially an empty object?

Question

React

item is an object that is empty at the time of rendering, so it does not yet have a parentNode field, so an error is immediately thrown

renderValue={(value, item, selectedElement) => {
        console.log(`${item.parentNode.label} ${selectedElement}`)
      }}

Answer 1

item?.parentNode?.label