Created
July 29, 2018 13:09
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| //: Playground - noun: a place where people can play | |
| import UIKit | |
| var str = "Hello, playground" | |
| let students = ["Kofi", "Abena", "Efua", "Kweku", "Akosua"] | |
| let studentsByLetter = Dictionary(grouping: students, by: { $0.first! }) | |
| print(studentsByLetter) | |
| // ["E": ["Efua"], "K": ["Kofi", "Kweku"], "A": ["Abena", "Akosua"]] |
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