Add without to NSDictionary

NSDictionary+without.h

@@ -0,0 +1,17 @@
+#import <Foundation/NSDictionary.h>
+
+@interface NSDictionary (YOLOWithout)
+
+/**
+ Returns a new dictionary where values for objects in the given array/set/object 
+ are removed from the receiver.
+
+    id rv = @{@1:@"1", @2:@"2", @3:@"3", @4:@"4", @5:@"5", @6:@"6"].without(@2);
+    // rv => @[@1:@"1", @3:@"3", @4:@"4", @5:@"5", @6:@"6"]
+
+    id rv = @[@1:@"1", @2:@"2", @3:@"3", @4:@"4", @5:@"5", @6:@"6"].without(@[@2, @3]);
+    // rv => @[@1:@"1", @4:@"4", @5:@"5", @6:@"6"]
+*/
+- (NSDictionary *(^)(id arrayOrSetOrObject))without;
+
+@end

NSDictionary+without.m

@@ -0,0 +1,21 @@
+#import "YOLO.ph"
+
+@implementation NSDictionary (YOLOWithout)
+
+- (NSDictionary *(^)(id))without {
+    return ^NSDictionary *(id arrayOrSetOrObject) {
+        if (!arrayOrSetOrObject)
+            return self;
+
+        id objs = [arrayOrSetOrObject isKindOfClass:[NSSet class]]
+                ? [arrayOrSetOrObject allObjects]
+                : [arrayOrSetOrObject isKindOfClass:[NSArray class]]
+                ? arrayOrSetOrObject
+                : @[arrayOrSetOrObject];
+        id rv = self.mutableCopy;
+        [rv removeObjectsForKeys:objs];
+        return rv;
+    };
+}
+
+@end