jashkenas/backbone — pull request #2707 by kjirou (2013-08-03 08:56:31+00:00)
Title: Add willBeValid to Model

This method validates attrs without both raising events and changing validationError.

Similar isValid is no good in my app like the following case:
- Can't pass attrs before setting them
- Always raises "invalid" event, if I don't want it

Please consider if you like!