How to have Tampermonkey script run once per page load?

Question

I'm trying to make a tampermonkey script that will once run once per page load, and will only run again once the page has been refreshed. Here is my script so far:

function(){
 dostuff()
setInterval(location.reload.bind(location), 1000*60*60*24);
}

The problem is, tampermonkey will continuously run the script, so dostuff() will just keep running over and over again, which I don't want. I've tried solutions such as GM_setValue and GM_getValue, but the solutions I found will only run once per install, which I don't want.

Here is a more complete sample of my code, which you can put in for https://stackoverflow.com (WARNING: This will crash your browser:):

$(document).ready(function() {
    'use strict';
      if (!sessionStorage.getItem("session")) {
          sessionStorage.setItem("session", "storage");
          myFunction();
      }
})();

function myFunction(){
     if (sessionStorage.getItem("session"));
          const galleryList = document.getElementsByClassName('question-hyperlink');
          for(var y=0; y<galleryList.length;y++){
          GM_openInTab(galleryList[y].href);
          console.log(galleryList[y].href);
          }
setTimeout(location.reload.bind(location), 1000*60*60*24);
          };

Answer 1

function() {
  //checks if value exists
  if (!sessionStorage.getItem("___thing___")) {

    //if it does not then set it and run the function
    sessionStorage.setItem("___thing___", "");

    yourFunction();
  }
}

Answer 2

I'm an absolute idiot. The script was actually running once correctly, but my document.getElementsByClassName was calling recursively every time it opened a new tab. I just had to add an if statement to check for an element exclusively on the page before it opened and the problem was fixed.