How do I use grep to quickly locate an object on Json Array?

How do I use grep to quickly locate an object on Json Array?

Dear All,

I have an ajax call that returns a Json object of the following format

[{"Id":'512',"BrideName":'Nithya Lavanya',"ParentName":'Deepak Vasudevan',},{"Id":'539',"BrideName":'Annapoorni Venkatesan',"ParentName":'Unavailable',}]

I am able to loop through the individual objects and find the elements.  But without looping will I be able to tell whether a particular BrideName (like Nithya Lavanya) is available something like

$.inArray(arrayName, "NithyaLavanya")