从对象数组中删除原始和副本- JS

var objArray = [
  { id: 1, name: 'John' },
  { id: 2, name: 'Jane' },
  { id: 3, name: 'Bob' },
  { id: 4, name: 'Alice' },
  { id: 5, name: 'Mary' }
];

function deleteObject(obj, array) {
  var index = array.findIndex(function(item) {
    return item.id === obj.id;
  });
  
  if (index !== -1) {
    array.splice(index, 1);
  }
}

var objToDelete = { id: 2, name: 'Jane' };
deleteObject(objToDelete, objArray);

console.log(objArray);

var objArray = [
  { id: 1, name: 'John' },
  { id: 2, name: 'Jane' },
  { id: 3, name: 'Bob' },
  { id: 4, name: 'Alice' },
  { id: 5, name: 'Mary' }
];

function deleteObject(obj, array) {
  var index = array.findIndex(function(item) {
    return item.id === obj.id;
  });
  
  if (index !== -1) {
    array.splice(index, 1);
  }
}

var objToDelete = { id: 2, name: 'Jane' };
deleteObject(objToDelete, objArray);

console.log(objArray);