substring(from:)' is deprecated. Use string slicing subscript with a 'partial range from' operator

Question

I have just coverted an app from swift3 to swift4.2 on Xcode 10.1

I am in the process of fixing some of the many errors that have appeared. Apparently substring(from:)' is deprecated. Use string slicing subscript with a 'partial range from' operator

t_prefix_phone = contact_phone.substring(to:contact_phone.index(contact_phone.startIndex, offsetBy: 3))

t_phone = contact_phone.substring(from:contact_phone.index(contact_phone.endIndex, offsetBy: -7))

Could you please help me translate the code above to 4.2 in such a way that the results are still strings.

Thanks

Possible duplicate of How can I use String slicing subscripts in Swift 4? — Andrew21111
– Andrew21111, Commented Mar 18, 2019 at 11:37

Johny D Good · Accepted Answer · 2019-04-08 14:27:21Z

7

swift 4 has prefix and suffix just for this:

    let contact_phone = "0123456789"
    let t_prefix_phone = String(contact_phone.prefix(3))
    let t_phone = String(contact_phone.suffix(7))

answered Apr 8, 2019 at 14:27

Johny D Good

4271 gold badge8 silver badges27 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

substring(from:)' is deprecated. Use string slicing subscript with a 'partial range from' operator

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related