Record text entry response on page submit

Hello,

I have a text entry (numeric) question that loops 4 times. I want to record the response of the 2nd loop as an embedded data field to be used in a later part of the survey. I am currently using the following code in js, but it is not working. Any thoughts on how to get the code to work?

Qualtrics.SurveyEngine.addOnPageSubmit(function() { 
    
    if("${lm://CurrentLoopNumber}" == 2) {
        var res_beliefdays = jQuery("#" + this.questionId + " .InputText").val();
         Qualtrics.SurveyEngine.setEmbeddedData("res_beliefdays",res_beliefdays);
    
    }

});