Co2 calculator is application developed to calculate Co2 emission from vehicles.

This is designed using node js & npm. Follow below steps to setup and use it in your machine.

make sure you have installed node js in your machine. If not download from below link and install.

https://nodejs.org/

npm i

first navigate to downloaded code root folder( i.e. co2-calculator) from command line.
Run program using below command. node co2-calculator.js .
find below example.

I:\projects\angular-ground\co2-calculator>node co2-calculator.js --transportation-method large-petrol-car --unit-of-distance km --distance 1800.5 --output kg Your trip caused 507.741kg of CO2-equivalent.

I:\projects\angular-ground\co2-calculator>node co2-calculator.js unit-of-distance=km --distance 15 --transportation-method medium-diesel-car Your trip caused 2.565kg of CO2-equivalent.

to run unit test enter below command.
npm test