How to get index of the max value in array of objects?

I've got an array with following format:

var dataset = [{date:'1',value:'55'},{date:'2',value:'52'},{date:'3',value:'47'}];

And I'm getting the maximum value in it by:

var maxValue = Math.max.apply(Math,dataset.map(function(o){return o.value;}));

It works very well, there's nothing to worry about. But how I can obtain an index of the maxValue?

I've tried indexOf() (which returns me -1 all the time), jQuery inArray() as well as reduce() but none of them work properly.

I guess there's a more cleaner way by iterating all elements to get the index.

Thanks in advance.