mishaherscu / ruby-calculator-challenge

Ruby Calculator Challenge

Prerequisites

• ga-wdi-boston/ruby-vs-js-objects

Requirements

• Create new instances of a Calculator class with an initialized value
• Access calculator methods from this class within pry when running ruby bin/calc.rb
• Return Floats vs Fixnums for true values

Instructions

In bin/calc.rb, create a Calculator Class with an initialize method that takes a starting number. You should then create calculation methods for each of the following operations that take a second number to perform a calculation on:

• Addition
• Subtraction
• Multiplication
• Division

After running ruby bin/calc.rb, and in your pry console, you should be able to create a new instance of your Calculator class and chain a calculation method to it to receive the correct answer.

Be aware of whether your methods are returning Float or Fixnum results.

Bonus

Research Ruby's self, specifically in regards to method chaining, and refactor your Calculator class to allow for multiple chained calculations. For example:

Calculator.new(5).add(3).multiply(2).subtract(1).divide(3) #=> 5

License

Source code distributed under the MIT license. Text and other assets copyright General Assembly, Inc., all rights reserved.