Data commit

Task/Add-a-variable-to-a-class-instance-at-runtime/Wren/add-a-variable-to-a-class-instance-at-runtime.wren

@@ -0,0 +1,27 @@
+import "io" for Stdin, Stdout
+
+class Birds {
+    construct new(userFields) {
+        _userFields = userFields
+    }
+    userFields { _userFields }
+}
+
+var userFields = {}
+System.print("Enter three fields to add to the Birds class:")
+for (i in 0..2) {
+    System.write("\n  name : ")
+    Stdout.flush()
+    var name = Stdin.readLine()
+    System.write("  value: ")
+    Stdout.flush()
+    var value = Num.fromString(Stdin.readLine())
+    userFields[name] = value
+}
+
+var birds = Birds.new(userFields)
+
+System.print("\nYour fields are:\n")
+for (kv in birds.userFields) {
+    System.print("  %(kv.key) = %(kv.value)")
+}