Hello

Hey!

undefined

ReferenceError

TypeError

TypeError

SyntaxError

Lydia Hallie

undefined undefined

Person {firstName: "Lydia", lastName: "Hallie"} and undefined

Person {firstName: "Lydia", lastName: "Hallie"} and Person {firstName: "Sarah", lastName: "Smith"}

Person {firstName: "Lydia", lastName: "Hallie"} and {}

Person {firstName: "Lydia", lastName: "Hallie"} and ReferenceError