Check If Swift Dictionary Contains No Values?

Question

So I\'m making a to-do list app, and I want the user to be notified when all of the shopping items have been deleted. I have a dictionary that contains the String:store as a

Answer 1

A functional programming approach:

let allEmpty = arr.reduce(true) { $0 && $1.1.isEmpty }

If you're not a big fan of implicit closure arguments, you can of course name them:

let allEmpty = arr.reduce(true) { empty, tuple in empty && tuple.1.isEmpty }