Option 1 with Docker

1. docker-machine start
2. docker-compose build
3. docker-compose up -d
4. Access the app on the browser at [docker-machine ip]:3000

Option 2 local node

1. cd [foldername]
2. npm install
3. npm start
4. Access the app on the browser at 127.0.0.1:3000

1. solution at /
   • Used express for routing and managing requests
   • Used bootstrap for styling
   • Used datatable for sorting
   • Used rss-parser
   • Used mustache for basic template rendering

File is at src/validate.js

if docker

docker-compose exec web sh

node src/validate.js

if local

node src/validate.js

First function validateRecurseve() is a simple recursive function to compute the sum of digits

The second function validatePromise is a reimplementation of the recursive function with a promise component to wait until the function has completed computing.