constructors for two JavaScript object classes

Refer to the following interface:     Provide two examples (screenshots) that in many ways could improve the above or similar interface using the principles of direct manipulation. Explain the relevant improvements as well. (Examples might have different object, labels and organization)

If you have a class named Animal, give three examples of potential objects of this class.

You are designing an application to rate your professors.a. Professors have the following properties: first name, last name, universityname, subject, and ratings for overall quality (1.0-5.0) and level of difficulty(1.0-5.0). Your class should have instance variables of the appropriatetype for each property.b. Your class should have two constructors: one that takes all properties, andone that takes only first name, last name, university name, and subjectand sets both of the ratings to an appropriate default value.c. You should provide accessors (getters) and mutators (setters) for firstname, last name, university name, and subject.d. Your class should provide a method to add a new rating for the professor.It should take two arguments: one for overall rating and one for level ofdifficulty, with values from 1 (awful) to 5 (awesome). Each time a newrating is provided, your class should calculate the average rating for theprofessor and update the appropriate variable for each.e. Your class…