Here is the code:
This was the file:
And this is the result gotten:
programming, beginners, techtalks
css, ux, frontend
javascript, webdev, javascriptlibraries, webdeve
cloud, cloudconsulting, cloudserviceprovid, aws
design
webdev, beginners
javascript, array, frontend, learning
iot, dashboard, charts, node
mongoose, node, mongodb, backenddevelopment
qa
privateblockchaindevelopment, blockchainsolutions, blockchain
odoo, erp
cloudcomputing, certificatuion