add some preliminary tests to array
primitive hashset implementation
wrote tests for class methods, emptiness, flatten and flatmap, and some slices
finish up slice tests and fixes
add tests for iteration tools
tests for element presence
redecided on the interface: when something is not present, should be undefined, since that is what undefined is for
add some preliminary tests to array
finish up slice tests and fixes
add tests for iteration tools
tests for element presence
redecided on the interface: when something is not present, should be undefined, since that is what undefined is for
merged in the branches
added prepending and appending tests, added immutable versions
Merge pull request #1 from kklimuk/array

Array Tests and Improvements