how to know the size of the image html code example

Example 1: how to change the size of an image in html

<img src='image.jpg' alt="Image" height="42" width="42">.

Example 2: get width of html photo

var img = new Image();

img.onload = function(){
  var height = img.height;
  var width = img.width;

  // code here to use the dimensions
}

img.src = url;