How can I utilize variable embedded data field names in display logic?

Question

I have a loop and merge block, and I would like certain questions to display based on the value of an embedded data field that CHANGES with every loop. Here is my code, which does not work:
Qualtrics.SurveyEngine.addOnload(function()
{
/*Place your JavaScript here to run when the page loads*/
var trial = "${lm://CurrentLoopNumber}" - 1;
var embData = "rating" + trial;
if (Qualtrics.SurveyEngine.getEmbeddedData(embData) == -1) var display = 5;
Qualtrics.SurveyEngine.setEmbeddedData( "display", display)
And then in my display logic for the question, I say to show question if embedded data field called "display" is equal to 5.
Basically, I've named my embedded data fields in a systematic way so that they can be differentially accessed on different loops, so I'm not sure why this isn't working. I also have very little javascript experience, so any help would be greatly appreciated!

TJUH_Kai · Answer

My suggestion is to use console.log to write the data to the console and in every loop, check the value and try to debug
var trial = "${lm://CurrentLoopNumber}" - 1;
console.log("trial",trial);
var embData = "rating" + trial;
console.log("embData",embData);
if (Qualtrics.SurveyEngine.getEmbeddedData(embData) == -1) var display = 5;
console.log("display",display);
Qualtrics.SurveyEngine.setEmbeddedData( "display", display)
If you don't know what console is, here are some information:
Web Console Debugging JavaScript

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