jQuery callback on image load (even when the image is cached)

Tom Lehman picture Tom Lehman · Oct 6, 2010 · Viewed 382.9k times · Source

I want to do:

$("img").bind('load', function() {
  // do stuff
});

But the load event doesn't fire when the image is loaded from cache. The jQuery docs suggest a plugin to fix this, but it doesn't work

Answer

Nick Craver picture Nick Craver · Oct 6, 2010

If the src is already set, then the event is firing in the cached case, before you even get the event handler bound. To fix this, you can loop through checking and triggering the event based off .complete, like this:

$("img").one("load", function() {
  // do stuff
}).each(function() {
  if(this.complete) {
      $(this).load(); // For jQuery < 3.0 
      // $(this).trigger('load'); // For jQuery >= 3.0 
  }
});

Note the change from .bind() to .one() so the event handler doesn't run twice.