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import Foundation

/*:
 # Collection
 ---
 ### Value Type (Swift Collection)
 - Array
 - Dictionary
 - Set
 
 ### Object Type (Foundation Collection)
 
 - NSArray, NSMutableArray
 - NSDictionary, NSMutableDictionary
 - NSSet, NSMutableSet
 
 ### Copy-on-Write Optimization
 ### Generic Collection
 ### Mutability
 - let => Immutable Collection
 - var => Mutable Collection
 
 ---
 */

/*
 Three primary collection types, known as arrays, sets, and dictionaries, for storing collections of values.
 
 Array - ordered collections of values.
 Set - unordered collections of unique values.
 Dictionary - unordered collections of key-value associations.
 */

//: ![Collection](collection.png)


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