Extract a function's comment, useful to have multiline string

extract-func-comment-string.js

/*!
 * Extract a function's comment, useful to have multiline string
 * @link https://gist.github.com/lavoiesl/5880516
 *
 * Don't forget to use /*! to avoid the comment being removed in minification 
 */
// Example:
// var myString = extractFuncCommentString(function(){/*!
//   <p>
//     foo bar
//   </p>
// */});

function extractFuncCommentString(func) {
  var matches = func.toString().match(/function\s*\(\)\s*\{\s*\/\*\!?\s*([\s\S]+?)\s*\*\/\s*\}/);
  if (!matches) return false;

  return matches[1];
}