// WRONG! Mutating state in place!//handleChange = (e) => {//
    const { items } = this.state;//
    items[1].name = e.target.value;//
    this.setState({ items });//};handleChange = (e) => {
   const newItems = [...this.state.items];
   newItems[item].name = e.target.value;
   this.setState({ items:newItems });};