js 删除对象属性方法吗

let obj = {
  name: 'Alice',
  age: 25
};

delete obj.age; // 返回 true，表示删除成功

console.log(obj); // 输出: { name: 'Alice' }

let obj = {
  name: 'Alice',
  age: 25
};

obj = Object.assign({}, obj, { age: undefined });

console.log(obj); // 输出: { name: 'Alice', age: undefined }

let obj = {
  name: 'Alice',
  age: 25,
  email: 'alice@example.com'
};

let newObj = Object.keys(obj).reduce((acc, key) => {
  if (key !== 'age') {
    acc[key] = obj[key];
  }
  return acc;
}, {});

console.log(newObj); // 输出: { name: 'Alice', email: 'alice@example.com' }

let obj = {};
Object.defineProperty(obj, 'name', {
  value: 'Alice',
  configurable: true // 确保属性是可配置的
});

delete obj.name; // 返回 true

let obj = {
  name: 'Alice'
};

delete obj.name;

console.log(obj.name); // 输出: undefined