how can i show an array in label? With ","-CodePudding

let item = event?.feed_category
       item?.forEach({ items in
           arr.append(items.title ?? "")
       })
       lblEventCategory.text = arr //this line incorrect

In this way, I print my array in the array, but how can I show it to the user by putting a comma between them in the label? Like this; technology, event, founder

CodePudding user response：

An array of strings can be joined by , using:

arr.joined(separator: ",")

Refer: https://developer.apple.com/documentation/swift/array/joined(separator:)-5do1g

CodePudding user response：

since your array, arr may contain empty string "", you may want to remove them, using this approach:

print("----> arr: \(arr.filter{!$0.isEmpty}.joined(separator: ","))")