Javascript Question;INSTRUCTIONSModify this function to take in an object as a parameter. The object will represent a person and have a firstName property and a lastName property. Return the person’s full name, separated by a space. Example:getFullName({ firstName: 'Jon', lastName: 'Smith' });// -> 'Jon Smith'This is what I got so far;function getFullName(name1, name2) {let person = {firstName: "John Smith",lastName: "Sarah Smith",};return `${person. firstName}`;return `${person. lastName}`;}***My problem is that it only return John Smith, and not Sarah. Anyone has a suggestion on what I should add? Thank you in advance!