[javascript] How to add onload event to a div element

You could use an interval to check for it until it loads like this: https://codepen.io/pager/pen/MBgGGM

let checkonloadDoSomething = setInterval(() => {
  let onloadDoSomething = document.getElementById("onloadDoSomething");
  if (onloadDoSomething) {
    onloadDoSomething.innerHTML="Loaded"
    clearInterval(checkonloadDoSomething);
  } else {`enter code here`
    console.log("Waiting for onloadDoSomething to load");
  }
}, 100);