检查SwiftUI中Textfield的字符数

Question

I am new to SwiftUI and I need to call a function when user enters minimum three characters in a textfield.

Like this:

After completing three or more characters I want to perform a function. Is there any way to do this in SwiftUI ?

Answer 1

You can use.onChange:

.onChange(of: name) { newValue in
                    
                    if newValue.count >= 3 {
                        // Call function
                    }
}