title: Searching on the properties of objects in an array
body: <p>I have an NSArray of objects with properties such as firstName, lastName, clientID etc. and i would like to perform a search on the array based on a search keyword. This keyword must be checked against the first name and the last name properties and return a subset of the original array that contains only those objects whose first/last name contain the search term. Is there any efficient/fast way to do this?</p>