function unescape(string) {
    return string == null ? '' : (string + '').replace(reEscapedHtml, unescapeHtmlChar);
  }
Converts the HTML entities `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#x27;`
in `string` to their corresponding characters.

@static
@memberOf _
@category Utilities
@param {String} string The string to unescape.
@returns {String} Returns the unescaped string.
@example

_.unescape('Moe, Larry &amp; Curly');
// => "Moe, Larry & Curly"