Added a basic odd/even checker function - ternary operator
Added a zero fill function from codewars. 6 kyu challenge.
Initialized underscore/underbar re-write. For fun.
identity, first, and last functions complete.
each reimplemented. indexOf given.
Filter reimplemented.
Implemented reject using filter. Rolling in the functional programming.
_.uniq implemented with two for loops. O(n) complexity.
Reimplemented _.map function.
Completed 'Numerology' function. CodeWars 6 kyu challenge.
pluck and invoke re-implemented.
Reimplemented reduce. Notice the differences between Array.prototype.reduce.