Fire an event when an image in the generated content is loaded

Melekus

I have a question about some javascript generated content:

I use the onload()html page 's events to load HTML code from the server and inject it into the page. Since it's already html, I use the attributes of innerHtmlthe node I want to populate with the content .

After injecting the HTML, I call a handcrafted adjustHeights()function that normalizes the heights of elements created this way so that they all match the height of the tallest element.

All of this works perfectly unless the code in it innerHtmlcontains some kind of image or other media that takes time to load (especially video), since adjustHeights()the call is made between the code injection and the end of load time for the image/video/etc. code.

Is there a way to wait for each element to load before calling it adjustHeights()? I've tried the document.onreadystatechangeproperty, but when I start injecting the code, the state is already "completed".

I'd rather not use time based calls if possible adjustHeights().

To make it more clear, here is an example:

var mylist = document.getElementById('mycontent');
var li;
for (var i = 0; i < res.length; i++)
{
    li = document.create('li');
    li.innerHTML=res[i];
    mylist.appendChild(li);
}
adjustHeights();

roxxypoxxy

For images and other types of media, the "onload" event should be used so that Adjust height can be called later. example:

<img src="someimage.png" onload="loadImage()" >

<script>
   function loadImage() {
     // code to adjust heights
    }
</script>

Here is the standard version:

var img = document.querySelector('img')

function loaded() {
  alert('loaded');
  // do something to adjust height
}

if (img.complete) {
  loaded()
} else {
  img.addEventListener('load', loaded)
  img.addEventListener('error', function() {
      alert('error')
  })
}

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