AveSwiftHelpers

A collection of swift helpers

isEmptyOrNil

isEmptyOrNil adds a helper function to both Optional and Collection that can be used to easily check if a (optional chained) collection is empty or nil:

if someObject?.someVariable?.someCollection.isEmptyOrNil == true {
  print("Empty")
}

This is not super trivial to do, since if you add a extension on Optional for isEmptyOrNil: Bool, this will fail when optional chaining is involved, since you would be comparing Bool? == true, which is always false. isEmptyOrNil makes this work by using a custom Bool type as return, which has a custom operator==.