Data update

Task/Dynamic-variable-names/Wren/dynamic-variable-names.wren

@@ -1,18 +1,14 @@
-import "io" for Stdin, Stdout
+import "./ioutil" for Input
+import "./trait" for Var
 
-var userVars = {}
 System.print("Enter three variables:")
 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())
-    userVars[name] = value
+    var name  = Input.text("\n  name  : ")
+    var value = Input.text("  value : ")
+    Var[name] = Num.fromString(value)
 }
 
 System.print("\nYour variables are:\n")
-for (kv in userVars) {
+for (kv in Var.entries) {
     System.print("  %(kv.key) = %(kv.value)")
 }