javascript - lodash _.sortedIndex returns last index element -

I must go to the element to determine the position _ sortedIndex I am using

If the array is being checked then it is small, it works perfectly. However this array can be very large and then the size _ The last element of the array instead of the actual position in SortedIndex

  var check object = {name: John, last name: do} var arrayoff object = [1 ... 25]; There will be similar layouts to check the objects objects - object var status = _ sarode index (arrowoff objects, check object, 'name')  

This works fine, And the place to be returned will be the appropriate place

However in the example below:

  var checkobject = {name: John, lastname: doe} var arrayOf object = [ 1 ... 75];  

It seems that either its correct status will be returned / / objects objects will have the same layout to check the object var status = _.sortedIndex (arrayOfObjects, CheckObject, 'name')

Or just 76%

Is there any way to ensure that the returned situation is correct?

This call has been called in the caller using the following:

  $ scope $ EvalAsync (function) {someFunctionToCheckIndex (data)});