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Finding out the Number of Elements in an Array

suggest change 
NSArray *myColors = [NSArray arrayWithObjects: @"Red", @"Green", @"Blue", @"Yellow", nil];
NSLog (@"Number of elements in array = %lu", [myColors count]);
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NSArray:
*NSArray
*Creating Arrays
*Accessing elements
*Reverse an Array
*Converting NSArray to NSMutableArray to allow modification
*Converting between Sets and Arrays
*Using Generics
*Comparing arrays
*Sorting Arrays
*Filtering Arrays With Predicates
*Enumerating using blocks
*Looping through
*Sorting array with custom objects
*Move object to another index
*Deleting Elements
*Insert Elements
*Adding elements
*Finding out the Number of Elements in an Array
*Add objects to NSArray
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