Xcode Swift - Is there an opposite to .contains?

Question

Is there a way to determine if string does not contain something in an if statement? Basically the opposite of .contains .

Example of contains:

if someItem.contains(x) {
code
}

Example of what I am looking for:

if someItem.doesNotContain(x) {
code
}

Where a slolution for doesNotContain is what I am looking for.

Any help is greatly appreciated, thank you.

*FYI, I am new to Swift and to programming, thank you for your comments.

Answer 1

No Apple doesn't provide any function like doesNotContain or something similar.

But if you don't want to add else part then you can simply use:

if !someItem.contains("hello") {
    //This means your someItem doesn't contain "hello" string.
}