facebook/react — pull request #1437 by danielschonfeld (2014-04-23 01:56:23+00:00)
Title: Created progressValue to be used with <progress /> tags

progressValue seems to be a safer way to go about changing the attribute 'value' for the tag when wanting to distinguish between intermediate and determined statuses.

Where progressValue 0 is a determined state and null is the intermediate state.

This pull request is a product of issue #1431