How can I check if a string already contains a character in Swift

Question

I would like to check in my app, if there is already a - character in the textField.

How can I do this?

Need more explanation of your question? Actually where do you want to check when keyboard shows or where ? — Rizwan, Aug 08 '18 at 09:40

Enea Dume · Accepted Answer · 2018-08-08T10:04:44.563

2

You can use contains() method

let myString = "test"
if myString.contains("e"){
   let index = myString.index(of: "e")
   myString.remove(at: index!)
}

p.s you can get myString from textField.text

edited Aug 08 '18 at 10:04

answered Aug 08 '18 at 09:41

Enea Dume

1

Yeah this works. Do you know, how I can delete a - when it is in the textfield? – AnotherNewCoder Aug 08 '18 at 09:55
see my updated answer – Enea Dume Aug 08 '18 at 10:04

Kerberos · Answer 2 · 2018-08-08T10:30:32.980

0

You can simply:

var yourTextFieldString: String = textField.text

yourTextFieldString.contains("-")

It returns a Bool.

edited Aug 08 '18 at 10:30

answered Aug 08 '18 at 09:44

Kerberos

2 Answers2