Работа с массивом

class Test extends React.Component{
  constructor(props){
    super(props);
    this.state ={
      elements: []
    };
  }
  componentDidMount(){
    fetch('${url}',{
      method: "GET",
      headers: {
        'Content-Type': 'application/json'
      }
    })
    .then(response => response.json())
    .then(data =>{
      var result = data.map(item =>
      {
        {
          id: item.id, x: item.x, y: item.y
        }
      })
    });
    this.setState({elements:result});
  }
 
  func(myId,myX,myY){
 
    //there should be a code
  }
}

let element = array.find(el => el.id === myID);
element.x = myX;
element.y = myY;

func(myId, myX, myY) {
  const elements = this.state.elements.map((element) => {
    if(element.id !== myId) return element;
    return { id: myId, x: myX, y: myY };
  });
  this.setState({ elements });
}

func(myId, myX, myY) {
    const elements = [...this.state.elements];
    const idx = elements.findIndex((e) => e.id === myId);
    if (idx === -1) return console.log("not found");
    elements[idx].x = myX;
    elements[idx].y = myY;
    this.setState({ elements });
}