documentcloud/underscore — Issue #343: _.indexOf and _.lastIndexOf proper sparse array support.
Author: jdalton
Created: 2011-10-19 22:02:24+00:00
State: open

Like in [other projects](https://github.com/jashkenas/coffee-script/issues/1771) underscore.js needs to fix its `_.indexOf` and `_.lastIndexOf` fallbacks to properly support sparse arrays.