Improve performance by:
+ Not leaking the `arguments` object!
+ Getting the last character of a string by index, instead of
with `.substr()` or `.slice()`
Improve code consistency by:
+ Using `[]` instead of `.charAt()` where possible
+ Using a function declaration instead of a var declaration
+ Using `.slice()` with clearer arguments
+ Checking if `dir` is truthy in `win32.format`
(added tests for this)
Improve both by:
+ Making the reusable `trimArray()` function
+ Standardizing getting certain path statistics with
the new `win32StatPath()` function
PR-URL: https://github.com/nodejs/io.js/pull/1778
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Nathan Woltman
bca53dce76