JSFiddle - React, Tailwind, and code Playground

HTML

<a href="http://files.mattlunn.me.uk/permanent/fish_images/1.jpg" id="someId">Click</a>

JavaScript

$('#someId').bind('click', function (event) {
  var image = new Image();
  image.onload = function () {
    var height = this.height;
    var width = this.width;
    
    alert(height + " | " + width);
  }
  image.src = this.href;
  
  event.preventDefault();
});