如何使用JavaScript获取图像大小(高度和宽度)？

function getImageSize(url, callback) {
  const img = new Image();
  img.onload = function() {
    callback({width: img.naturalWidth, height: img.naturalHeight});
  };
  img.src = url;
}

getImageSize('https://example.com/image.jpg', function(size) {
  console.log('Image width:', size.width);
  console.log('Image height:', size.height);
});