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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)
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
参考答案:
正文完
发表至: javascript
2022-02-14