m64253/underscore — comment on commit 1fe0a15db4724f74fa2a4303a9ae18f1f82739fe
File:  line 0
By michaelficarra:

To match the behaviour of [YUI's `isValue`](http://yuilibrary.com/yui/docs/api/files/yui_js_yui-lang.js.html#l214), you'd actually want to check for both positive and negative infinity, not remove the check entirely. The [`isValue` documentation](http://yuilibrary.com/yui/docs/api/classes/Lang.html#method_isValue) is incomplete in that it doesn't mention that it returns `false` for positive or negative infinity.