如何返回对象而不是数组？

function getObject() {
  return { key1: value1, key2: value2 };
}

function MyObject() {
  this.key1 = value1;
  this.key2 = value2;
}

function getObject() {
  return new MyObject();
}

class MyObject {
  constructor() {
    this.key1 = value1;
    this.key2 = value2;
  }
}

function getObject() {
  return new MyObject();
}

function createObject(type) {
  if (type === 'type1') {
    return { key1: value1 };
  } else if (type === 'type2') {
    return { key2: value2 };
  }
}

function getObject() {
  return createObject('type1');
}