Is there a way to set global variables or have custom question Javascript only run once?

Hi jkunzel ,
Make a "flag" -named embedded data variable and make sure it is defined before that question block or better at the top .

and then use the code below to run the function just once using the following technique:

Qualtrics.SurveyEngine.addOnload(function()
{
/*Place your JavaScript here to run when the page loads*/
if(parseInt('${e://Field/flag}')==0)

{ 
console.log("run only once");//Replace it with you code that needs to be run only once



 Qualtrics.SurveyEngine.setEmbeddedData("flag", 1);


}
else
{console.log("is not runinng again");  
console.log(parseInt('${e://Field/flag}'));
}


});

Qualtrics.SurveyEngine.addOnReady(function()
{

/*Place your JavaScript here to run when the page is fully displayed*/


});

Qualtrics.SurveyEngine.addOnUnload(function()
{
/*Place your JavaScript here to run when the page is unloaded*/

});

Hope it resolves your query😊!!

Thank you! This is exactly what I needed :)