codemix/fast.js — pull request #51 by phpnode (2014-07-03 19:46:07+00:00)
Title: better/stricter fromIndex

The previous code with `fromIndex` support introduced a weird edge case in order to deal with bad input. This PR changes the code to only work with integer values, not booleans, objects, NaNs etc. If the user passes a non numeric value it will be silently ignored.