Replaces any image on page with a Dummyimage.com image showing size

imgToDummyImage.js

var image = Array.from(document.querySelectorAll('img'));
image.map((ele,i) => {
  var {width, height} = getComputedStyle(ele);
  var newSrc = `http://dummyimage.com/${parseInt(width)}x${parseInt(height)}`;
  if ('src' in ele) {
   ele.setAttribute('src', newSrc)
  } else {
    var url = ele.style.backgroundImage;
    console.log(url)
    if (url) {
      ele.style.backgroundImage = `url(${newSrc})`
    }
  }
  ele.style.outline = 'solid blue'
})