下⾯ JavaScript 代码的输出是什么?

function Person(firstName, lastName) {
  this.firstName = firstName;
  this.lastName = lastName;
}

const lydia = new Person("Lydia", "Hallie");
const sarah = Person("Sarah", "Smith");
console.log(lydia);
console.log(sarah);

1008 次浏览

A、Person {firstName: "Lydia", lastName: "Hallie"} and undefined
B、Person {firstName: "Lydia", lastName: "Hallie"} and Person {firstName: "Sarah", lastName: "Smith"}
C、Person {firstName: "Lydia", lastName: "Hallie"} and {}
D、Person {firstName: "Lydia", lastName: "Hallie"} and ReferenceError