documentcloud/backbone — pull request #1511 by psjinx (2012-07-27 10:44:39+00:00)
Title: Use Array.slice() method for slicing arguments inside Events.trigger()

[].slice.call(arguments, 1) can be used for slicing an Array like object instead of a for loop. [This question](http://stackoverflow.com/questions/3978492/javascript-fastest-way-to-duplicate-an-array-slice-vs-for-loop) posted on Stackoverflow suggests that slice is faster than for loop.