underscore mixin to convert image urls to img tags

imagetoimg.js

_.mixin({
  imageToImg: function(html) {
    const regEx = /(https?:\/\/.*\.(?:jpg|jpeg|gif|png))/g;

    if (regEx.test(html)) {
      const embed = '<img src="$1" />';
      html = html.replace(regEx, embed);
    }

    return html;
  }
});