Search for a HTML Element with the specified class

by x7ee1

HTML

<script src="https://code.jquery.com/jquery-3.0.0.js"></script>
<img class="bar" src="http://www.stackoverflowbusiness.com/hubfs/logo-so-color.png?t=1467290961626" />

CSS

img {
  width: 100%
}

JavaScript

var reg = /Image/g, // regexp for an image element
  query = document.querySelector('.bar'); // returns [object HTMLImageElement]
	query += this.toString(); // turns object into a string

if (query.match(reg)) { // checks if it matches
  alert('the class .bar is attached in the following Element: \n' + query);
}