NodeJS App, includes lodash and yargs App is console based, to manipulate commnand line instruction I used Yargs Yargs helps you build interactive command line tools, by parsing arguments and generating an elegant user interface. App requires to manipulate array of objects, I used lodash for that Lodash is, A modern JavaScript utility library delivering modularity, performance & extras. Run app on local machine Download or clone the app. Run 'npm install'. Run 'node app.js' There are total 4 commands 'add, list, read, remove'. To know more about which command to use and how to use 'node app.js --help' ( implemented using yargs )