documentcloud/underscore — Issue #496: _.size enhance
Author: Yahasana
Created: 2012-03-01 15:25:32+00:00
State: open

this implement should be much more faster than the current one

```javascript
_.size = function(obj) {
return _.keys(obj).length;
};
// VS
_.size = function(obj) {
return _.toArray(obj).length;
};
````