🏗️ Module 08 Mini-Project: Zoo Animal and Employee Tracker Using TypeScript and OOP

In this mini-project, you will work with a group to complete the Zoo Animal and Employee Tracking app by filling in the missing classes while using TypeScript to build a robust fault-tolerant application.

• As a developer, I want a robust fault-tolerant application built using TypeScript that will take in user inputs via Inquirer.js on the different animals living and employees working at the zoo.

• As a developer, I want to follow the object-oriented programming (OOP) paradigm to build a modular, reuseable system for future development cycles.

Acceptance Criteria

• It's done when I update the variables in the index.ts file to have a typed array.

• It's done when I create an Employee class that the ZooKeeper and ZooWorker classes can inherit properties from.

• It's done when I create a Work interface that the Employee class will implement method receivePay() from.

• It's done when I create an Animal class that will implement the ZooAnimals interface.

• It's done when I can call the startAnimalCli() method in the Cli.ts file to create a new Animal object and push it to the animals array.

• It's done when I can call the startZooKeeperCli() method in the Cli.ts file to create a new ZooKeeper object and push it to the employees array.

• It's done when I am able to store the Animal objects after calling the startAnimalCli() method in the associated animals array to see the list later.

• It's done when I am able to store the Employee objects after calling the startEmployeeCli() method in the associated employees array to see the list later.

• It's done when I can call the feedAnimals() method in the Cli.ts file to iterate through the animals array and, if the animal is hungry, console that the animal species will be fed.

• It's done when I can call the payEmployees() method in the Cli.ts file to iterate through the employees array and, if the employee's name exists, console that the employee is paid an amount specified in the prompt.

Additional Requirements

The following is a specification guide as to how the classes and interfaces should be created:

• Animal class

  • species as a string
  • hungry as a boolean
  • weight as a number
  • amount as a number
  • makeRollCall() as a method that returns how many animals of that species are in the zoo and whether they are hungry

• Employee class

  • Implements Work interface
  • name as a string
  • id as a number
  • title as a string
  • salary as a number
  • receivePay() as a method that takes in a pay(number) as a parameter and returns pay as a number

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📝 Notes

Refer to the documentation:

• .find() method

• Inquirer package

• Recursion in JavaScript

💡 Hints

How can we set up inheritance between classes?

How can we use interfaces to have a polymorphic application?

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