how to make something happen when a word it typed in a textfield

 

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Code Block 
 TextField("enter text", text: $text)
      .onChange(of: text) {
        if $0 == "magic" {  // use $0.lowercased() for case-insensitive
          // do something
        }
   }

Code Block 
 TextField("enter text", text: $text)
      .onChange(of: text) {
        if $0 == "magic" {  // use $0.lowercased() for case-insensitive
          // do something
        }
   }