Get image dimension

imageDimension.js

// With naturalWidth, naturalHeight
myImage.addEventListener('onload', function() {
	console.log('My width is: ', this.naturalWidth);
	console.log('My height is: ', this.naturalHeight);
});

// Without naturalWidth, naturalHeight
function realImgDimension(img) {
    var i = new Image();
    i.src = img.src;
    return {
        naturalWidth: i.width, 
        naturalHeight: i.height
    };
}
  
var myImage = document.getElementById('myImage');
myImage.addEventListener('load', function() {
  var realSize = realImgDimension(this);
  console.log('My width is: ', realSize.naturalWidth);
  console.log('My height is: ', realSize.naturalHeight);
});