Open Source Library Bringing Microsoft .NET Linq Style Queries To Objective-C Collections

Featured iPhone Development Resources,iOS Development Libraries,Objective-C,Open Source iOS Libraries And Tools

Previously I mentioned the iOS-Queryable framework that provides a Microsoft .NET LINQ style syntax for creating core data queries.

Anton Bukov has created a project called NSEnumeratorLinq that aims to provide an API modeled after the Linq Enumerable API found in .NET providing an extensive number of methods for easier queries of Objectice-c collections.

Here’s an example from the NSEnumeratorLinq readme showing use of the library on an NSArray:

NSArray * arr = @[@1,@2,@3,@4,@5,@6,@7,@8];
NSArray * subarr = [[[[[arr objectEnumerator] // 1,2,3,4,5,6,7,8
where:^(id a){return [a intValue]%2 == 1}] // 1,3,5,7
select:^(id a){return @([a intValue]*2)}] // 2,6,10,14
where:^(id a){return [a intValue]>2 && [a intValue]<12}] // 6,10
allObjects];

You can find NSEnumeratorLinq on Github here.

There are many methods available that you’ll find listed on the Github page.

Be the first to comment…

Leave a Reply