Push a new value to nested array in React hooks

Question

I have a function onTagSelected() that updates now a single value for a key inside a object:

const NotesContainer = ({

}) => {
  const [notesDummyData, setNo         


        

Answer 1

spread the previous tag and add selectedTag to end

just change this

return { ...x, tag: selectedTag };

to

return { ...x, tag: [...x.tag, selectedTag] };

Or

return { ...x, tag: x.tag.concat(selectedTag) };