Ensuring a Random Number is not Re-picked

Hi Kevin,

If you don't need anything so custom, and could get by with a type of "masking" approach, I Googled a simple JavaScript encryption method (found here) that converts your string into Base64 and back.

For my test In Storyline, I created 3 text variables (baseString, encodedString, and decodedString).

On the stage, I created a text entry field (the default TextEntry 1 variable changed to the baseString variable).

Then added 2 buttons (one to encrypt and one to decrypt) with JavaScript triggers that will convert the entered text and display in two additional text fields displaying the other 2 variables (encodedString, and decodedString).

On the encrypt button, I added this JavaScript to the trigger:

var player = GetPlayer();

//The baseString variable could be populated by retrieving the learner name from the LMS, but just used text entry here.
var baseString = player.GetVar("baseString");

//Convert to base64
var encodedString = window.btoa( baseString );

//Display in text field, but this could be sent to your Google sheet.
player.SetVar("encodedString", encodedString);

On the decrypt button, it goes the other way:

var player = GetPlayer();

//Grab the encoded text
var encodedString = player.GetVar("encodedString");

//Convert back to normal text
var decodedString = window.atob( encodedString );

//Display in the text field
player.SetVar("decodedString", decodedString);

The test file is attached.

Hope that helps.