How to change img to amp-img with jQuery?

Question

Accelerated Mobile Pages (AMP) Project

Original

<div class="thumbnail"> 
 <img src="MyImage.jpg" alt="an image"/>
</div>

Result

<div class="thumbnail">
 <amp-img src="MyImage.jpg" width="1080" height="610" layout="responsive" alt="an image"></amp-img>
</div>

How to do it with jQuery ?

Answer 1

Use .replaceWith() API to replace the content :

$('.thumbnail').find('img').replaceWith(function () {
   return '<amp-img src="'+this.src+'" width="1080" height="610" layout="responsive" alt="'+this.alt+'"></amp-img>'
});