CompactMapDictionaryValues.swift

var dict: [String: Any?] = ["a": nil, "b": 0, "c": 1]

// 1. Map and comapctMap
// This works. Although the dictionary value is still optional even though it could never be nil here 👍
let mappedDict = dict.map { return $0.value != nil ? $0 : nil }.compactMap { $0 }
print(mappedDict)

// 2. Filter
// Filtering achieves the same
let filteredDict = dict.filter { $0.value != nil }
print(filteredDict)

// 3. Filter and mapValues
// To make value non-optional after filtering you can map the values and unwrap them to get the best result.
let filteredNonOptionalDict: [String: Any] = dict.filter { $0.value != nil }.mapValues { $0! }
print(filteredNonOptionalDict)

// TL;DR
let newDict: [String: Any] = dict.filter { $0.value != nil }.mapValues { $0! }
// gives you a dictrionary of [String: Any]