leoroma/bin2dec-js

Description

• First exercise from https://github.com/ImraanMeyer/app-ideas.
• To build the followed application I have used Test Driven Development (TDD) with red-green-refactor cycle.

User Stories

• User can enter up to 8 binary digits in one input field. (complete)
• User must be notified if anything other than a 0 or 1 was entered. (complete)
• User views the results in a single output field containing the decimal (base 10) equivalent of the binary number that was entered. (complete)

Instructions

• Open your terminal.
• Clone the repository in a folder by typing: git clone https://github.com/LeoRoma/bin2dec-js.git.
• Type cd bin2dec-js to move folder.
• Run npm install to install the dependencies.
• Run npm test to check the tests.

Approach

• I have created a class BinaryConverter, in case I needed to refactor or implement more functions.
• I have implemented the class BinaryConverter with input() function.
• I have started with first checking if the function was working.
• After I started to check the edge cases, such as the input cannot take more than 8 digits and the input is invalid if is not 0 and 1.
• Once the edge cases were done I have created a loop to calculate the decimals.
• I have extracted the loop in convert() function for refactoring.