ValsNotVars.kt.diff

/* Copyright 2021 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 */
   
data class MyData(
-    var num: Int
+    val num: Int
)
-  myObj.num = 5  // Fails to compile when num is val
+  val newObj = myObj.copy(num = 5)