Back-end

while(!(succeed=try()))

Node Js

“Node.js is an open-source, cross-platform JavaScript run-time environment that executes JavaScript code server-side” aka back-end development. There are other languages for back-end development including but not limited to Python, Ruby, PHP and Java.

Python

Python is a high-level, interpreted, interactive and object-oriented scripting language. Python is designed to be highly readable. It uses English keywords frequently where as other languages use punctuation, and it has fewer syntactical constructions than other languages.

Database Management

Database Management, allows a person to organize, store and retrieve data from a computer. Database Management can also describe, the data storage, operations and security practices of a Database Administrator (DBA), throughout the life cycle of the data.