Using javascript/jQuery to get attribute values from an HTML string

Question

I have an HTML string that contains text and images, e.g.

...

...

I need to

Answer 1

I solved this same issue trying to pull out the src url from an iframe. Here is a plain JavaScript function that will work for any string:

function getSourceUrl(iframe) {
  var startFromSrc = iframe.slice(iframe.search('src'));
  return startFromSrc.slice(5, startFromSrc.search(' ') - 1);
}