give swift version for: pets.map { |pet| pet[:names].select { |name| name.length <= 5 } }.flatten.sort in ruby

In Swift, the equivalent code for pets.map { |pet| pet[:names].select { |name| name.length <= 5 } }.flatten.sort in Ruby would be:

main.swift
let result = pets.map { pet -> [String] in
    return pet["names"].filter { name in
        return name.count <= 5
    }
}.flatMap { $0 }.sorted()
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Here's a breakdown of what's happening:

1. First, we use the map function to iterate over each pet in the pets array.
2. For each pet, we use a closure to access the names array and use the filter function to select only the names with a length less than or equal to 5.
3. The filter function returns an array of [String] (arrays of names), so we use flatMap to flatten the resulting arrays into a single array of names.
4. Finally, we use the sorted function to sort the names alphabetically.

Note that in Swift, the square brackets [] are used to access values in a dictionary.

Make sure to adjust the code according to your specific data structures and requirements.