SwiftUI: TextField max limit

TextField is a control that displays an editable text interface.

In this blog, we’ll learn how to set the maximum limit of a text in Textfield using Combine.

The most elegant (and simple) way to set a character limit on the TextField is to use the native publisher event collect().

collect()Collects all received elements, and emits a single array of the collection when the upstream publisher finishes.

import SwiftUI
import Combine
struct ContentView: View {
@State var text = ""
var body: some View {
         TextField("Set the max length", text: $text)
             .font(Font.system(size: 16))
             .foregroundColor(Color.blue)
             .onReceive(text.publisher.collect()){
                let result = String($0.prefix(240))
                 if text != result {
                   text = result
                 }
             }
         Text("\(text.count)/240 Characters")
     }
}

Reference taken from,
https://stackoverflow.com/questions/56476007/swiftui-textfield-max-length