Mini lab on Javascript prototyping...

gistfile1.txt

  MINI LAB:
    Do a Person class and create two subclasses "Manager" and "Employee"
    First define constructors, then define prototypes

    1. Define the person function:

        Person = function (name) {
          if(name) {
            this.name = name;
          }
        }

    2. Create the object constructor - define the Person prototype...

        Person.prototype = {
          manager: false,
          employeeType: '(not set)',
          companyName: '(not set)',

          introduce: function() {
            if (this.isManager()) {
              this.employeeType = "a manager";
            } else {
              this.employeeType = "an employee";
            }
            console.log("My name is: " + this.name + ". I am " + this.employeeType + " at " + this.companyName)
          },

          getCompanyName: function() {
            return !!this.companyName;
          },

          getEmployeeType: function() {
            return !!this.employeeType;
          },

          isManager: function() {
            return !!this.manager;
          }
        }

    3. Create a Person object

        > kyle = new Person('Kyle')
        Person {name: "Kyle", manager: false, employeeType: "(not set)", companyName: "(not set)", introduce: function…}

    4. Test the properties/attributes of the object

        > kyle.introduce()
        My name is: Kyle. I am an employee at (not set)
        undefined

        > kyle.isManager()
        false

        > kyle.hasOwnProperty('manager')
        false

        > console.log(kyle.isManager())
        false
        undefined

    5. Set the properties/attributes of the object

        > kyle.manager = true;
        true

        > kyle.introduce()
        My name is: Kyle. I am a manager at (not set)
        undefined

        > kyle.employeeType = 'contractor';
        "contractor"

        > kyle.introduce()
        My name is: Kyle. I am a manager at (not set)
        undefined

        > kyle.companyName = 'Twitter, Inc.'
        "Twitter, Inc."

        > kyle.introduce()
        My name is: Kyle. I am a manager at Twitter, Inc.
        undefined

        > kyle.manager = false;
        false

        > kyle.introduce()
        My name is: Kyle. I am an employee at Twitter, Inc.
        undefined