This PR is the solution to the 'js basics' #1

[gitpraths]

Issue1: Data Types

• What all did you learn?
  This exercise was about the variable declaration and data types.
• Any difficulties that you faced, and how you solved it?
  No, the lessons were straightforward and the assignment was simple.
• Did you have to learn anything new to do the assignments?
  I was aware about the data types and variables as I have used JS before.
• Any thing else you would like to share about the topic?
  No, the lesson was short and to the point and assignment helped revise the topics learned. It was fun and easy to understand.