How to get image size (height & width) using JavaScript?
You can programmatically get the image and check the dimensions using Javascript...
const img = new Image();img.onload = function() { alert(this.width + 'x' + this.height);}img.src = 'http://www.google.com/intl/en_ALL/images/logo.gif';This can be useful if the image is not a part of the markup.
clientWidth and clientHeight are DOM properties that show the current in-browser size of the inner dimensions of a DOM element (excluding margin and border). So in the case of an IMG element, this will get the actual dimensions of the visible image.
var img = document.getElementById('imageid'); //or however you get a handle to the IMGvar width = img.clientWidth;var height = img.clientHeight;
Also (in addition to Rex and Ian's answers) there is:
imageElement.naturalHeightand
imageElement.naturalWidthThese provide the height and width of the image file itself (rather than just the image element).