joyent/node — pull request #4597 by deanm (2013-01-15 18:09:40+00:00)
Title: TypedArrays: Improve performance when no endian-ness parameter is passed...

... to the

dataview functions. V8 seems to be particularly slow converting an undefined
value to false in BooleanValue.

From the discussion at:

https://github.com/joyent/node/pull/4504