js 对象属性删除

方法

delete 对象.属性

说明：删除对象的某个属性

示例

const person = {
  firstname: '张',
  lastname: '三'
}

console.log(person);
// expected output: { firstname: '张', lastname: '三'}

delete person.firstname;

console.log(person);
// expected output: {lastname: '三'}

你也可以

delete person['firstname'];