Swift Group Array
1
let stopsGrouped: [[Stop]] = [_](Dictionary.init(grouping: stops, by: \.routeId).values)
[_] is equivalent to Array():
1
let stopsGrouped: [[Stop]] = Array(Dictionary.init(grouping: stops, by: \.routeId).values)
 This post is licensed under  CC BY 4.0  by the author.