Kata

Create a function validate() that takes a string email address and returns true if valid, false otherwise.

A valid email is defined as:

• Has an @ symbol within
• Has dots splitting up two or more strings at the right of the @.
• Has contents to the left of the @. Only one part is needed. Multiply parts should be seperated with dots.

For example:

validate('joe@example.com') => true
validate('joe.codewars@example.com') => true
validate('joe') => false # does not contain @ symbol, does not contain two or more strings seperated by a dot after the @ symbol
validate('@.') => false #nothing to the left of the @, does not adhere to rule 2 in the description

Here's a tool that may help: http://rubular.com/