phpjs/functions/strings/html_entity_decode.js

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function html_entity_decode(string, quote_style) {
  // From: http://phpjs.org/functions
  // +   original by: john (http://www.jd-tech.net)
  // +      input by: ger
  // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // +   bugfixed by: Onno Marsman
  // +   improved by: marc andreu
  // +    revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // +      input by: Ratheous
  // +   bugfixed by: Brett Zamir (http://brett-zamir.me)
  // +      input by: Nick Kolosov (http://sammy.ru)
  // +   bugfixed by: Fox
  // -    depends on: get_html_translation_table
  // *     example 1: html_entity_decode('Kevin & van Zonneveld');
  // *     returns 1: 'Kevin & van Zonneveld'
  // *     example 2: html_entity_decode('<');
  // *     returns 2: '<'
  var hash_map = {},
      symbol = '',
      tmp_str = '',
      entity = '';
  tmp_str = string.toString();

  if (false === (hash_map = this.get_html_translation_table('HTML_ENTITIES', quote_style))) {
    return false;
  }

  // fix & problem
  // http://phpjs.org/functions/get_html_translation_table:416#comment_97660
  delete(hash_map['&']);
  hash_map['&'] = '&';

  for (symbol in hash_map) {
    entity = hash_map[symbol];
    tmp_str = tmp_str.split(entity).join(symbol);
  }
  tmp_str = tmp_str.split(''').join("'");

  return tmp_str;
}