33 lines
1.2 KiB
Swift
33 lines
1.2 KiB
Swift
//
|
|
// Copyright 2023 New Vector Ltd
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
|
|
import Foundation
|
|
|
|
extension Dictionary {
|
|
var jsonString: String? {
|
|
guard let data = try? JSONSerialization.data(withJSONObject: self,
|
|
options: [.fragmentsAllowed, .sortedKeys]) else {
|
|
return nil
|
|
}
|
|
return String(data: data, encoding: .utf8)
|
|
}
|
|
|
|
/// Returns a dictionary containing the original values keyed by the results of mapping the given closure over its keys.
|
|
func mapKeys<T>(_ transform: (Key) -> T) -> [T: Value] {
|
|
.init(map { (transform($0.key), $0.value) }) { first, _ in first }
|
|
}
|
|
}
|